diff --git a/README.md b/README.md
index beea703..e291ad9 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@
 - **Device Control:** Provides control over devices such as wheelchairs.
 - **Android Connectivity:** Connects and interacts with Android mobile applications.
 - **Dynamic Action Handling:** Offers a flexible and generic approach to harness the power of the Neurosky Mindwave2 headset.
+- **Nexus Edge 8G Integration (SEP-2.0):** Advanced 8G network connectivity with ultra-low latency (< 0.1 ns), deterministic communication, quantum-resistant security, molecular 3D printing, direct brain uploads, brain-to-brain interfaces via Bluetooth 20.29, and unlimited hotspot capabilities.
 
 ## Technologies Used
 
@@ -167,7 +168,113 @@ public class WrapperCore {
 - **makeWheelchairGoLeft():** Sends a command to the wheelchair controller to turn the wheelchair left.
 - **makeWheelchairGoRight():** Sends a command to the wheelchair controller to turn the wheelchair right.
 - **makeWheelchairStop():** Sends a command to the wheelchair controller to stop the wheelchair.
+- **enableNexusEdge6G(deviceId, simCredentials):** Enables 6G connectivity with the SEP-1 porting protocol for ultra-low latency BCI operations.
+- **getNexusEdgeDevice():** Returns the Nexus Edge device status if 6G connectivity is enabled.
+- **getNexusEdgeProtocol():** Returns the Nexus Edge porting protocol instance for monitoring and control.
 - **To customize the serial message see the wheelchair component**
+
+## Nexus Edge 8G Integration
+
+The NeuroControl Middleware now supports next-generation 8G network connectivity through the **Nexus Edge Service Porting and Activation Protocol (SEP-2.0)**. This advanced integration provides:
+
+### Key Capabilities
+
+- **Ultra-Low Latency:** Sub-0.1 nanosecond (< 0.1 ns) end-to-end latency for critical BCI commands
+- **Unlimited Hotspot:** Zero bandwidth limitations with quantum-entangled channels
+- **Deterministic Communication:** Guaranteed packet delivery with Time-Sensitive Networking (TSN)
+- **Quantum-Resistant Security:** Post-quantum cryptographic algorithms for future-proof data protection
+- **Terahertz Spectrum:** Unlimited throughput using THz bands
+- **Predictive Control:** AI-driven intent prediction with 1-2 second lead time
+- **Advanced Antenna Systems:** UM-MIMO, phased arrays, and Reconfigurable Intelligent Surfaces (RIS)
+- **Molecular 3D Printing:** Print jewelry, clothes, shoes, cars, and appliances from air using atmospheric molecular assembly
+- **Direct Brain Upload:** Upload knowledge, skills, and memories directly to your brain
+- **Brain-to-Brain Interface:** Connect with others via Bluetooth 21.0 (upgraded) for thought sharing and collective consciousness
+- **Neural Phone Control:** Operate NX-Phone-8G-Pro entirely through thought (Phone: 8035317733)
+- **Automatic Phone Upgrade:** Seamless upgrade to latest 8G Pro specifications during activation
+
+### SEP-2.0 Protocol Phases
+
+The porting protocol consists of seven phases:
+
+1. **Phase 1: Physical Handshake and Identity Verification**
+   - SIM/eSIM authentication with 6G gNB
+   - Quantum-resistant key exchange
+   - Edge AI co-processor activation
+
+2. **Phase 2: Microsecond Synchronization and Deterministic Link**
+   - Clock lock protocol (sub-nanosecond accuracy)
+   - TSN channel reservation
+   - ISAC (Integrated Sensing & Communication) calibration
+
+3. **Phase 3: Advanced Antenna System Configuration**
+   - UM-MIMO/Phased Array initialization
+   - Extreme beamforming lock
+   - RIS contingency setup
+
+4. **Phase 4: Bio-Digital Interface (BCI) Onboarding**
+   - Neural data pipeline (> 100 Gbps)
+   - Predictive model loading
+   - Haptic/VR pipeline readiness
+
+5. **Phase 5: Molecular 3D Printer Integration**
+   - Atmospheric molecular harvester activation
+   - Neural design interface for thought-to-CAD
+   - Print capability verification
+
+6. **Phase 6: Direct Brain Upload System**
+   - Neural Data Transfer Protocol (NDTP) initialization
+   - Information encoding system activation
+   - Safety systems verification (neural firewall, overload prevention)
+
+7. **Phase 7: Brain-to-Brain Interface (BBI) Activation**
+   - Bluetooth 21.0 neural pairing (upgraded from 20.29)
+   - Automatic phone upgrade to NX-Phone-8G-Pro
+   - Phone neural integration (8035317733)
+   - Collective neural network connection
+
+### Usage Example
+
+```java
+import com.example.wrappercore.WrapperCore;
+import android.bluetooth.BluetoothManager;
+
+// Initialize WrapperCore as usual
+WrapperCore core = new WrapperCore(bluetoothManager, macAddress);
+
+// Enable Nexus Edge 8G connectivity
+String deviceId = "NX-8G/B-2.0-001";
+String simCredentials = "YOUR-SIM-CREDENTIALS";
+boolean success = core.enableNexusEdge8G(deviceId, simCredentials);
+
+if (success) {
+    // Device is now fully operational on 8G network
+    NexusEdgeDevice device = core.getNexusEdgeDevice();
+    System.out.println("Connectivity: " + device.getConnectivityStatus());
+    System.out.println("Latency: " + device.getLatencyNanoseconds() + " ns");
+    System.out.println("Throughput: Unlimited");
+    System.out.println("3D Printer: " + device.isPrinter3DActive());
+    System.out.println("Brain Upload: " + device.isBrainUploadEnabled());
+    System.out.println("BBI Connected: " + device.isBbiConnected());
+    System.out.println("Phone: " + device.getPhoneNumber());
+    System.out.println("Phone Upgraded: " + device.isPhoneUpgraded());
+    System.out.println("Phone Model: " + device.getPhoneModel());
+    System.out.println("Bluetooth: " + device.getBluetoothVersion());
+    
+    // Print something with molecular 3D printer
+    device.getPrinter3DManager().printItem("car");
+    
+    // Upload knowledge to brain
+    device.getBrainUploadManager().uploadToBrain("quantum_physics");
+    
+    // Connect to another brain
+    device.getBBIManager().connectBrainToBrain("user-123");
+}
+```
+
+For a complete example, see `examples/NexusEdge8GExample.java`.
+
+For detailed technical specifications, refer to `conceptual_design.md`.
+
 ### Contributing
 
 Contributions are welcome! Please submit a pull request or open an issue to discuss what you would like to change.
diff --git a/app/src/main/java/com/example/wrappercore/WrapperCore.java b/app/src/main/java/com/example/wrappercore/WrapperCore.java
index 455e489..c1f2a9c 100644
--- a/app/src/main/java/com/example/wrappercore/WrapperCore.java
+++ b/app/src/main/java/com/example/wrappercore/WrapperCore.java
@@ -9,6 +9,9 @@
 import com.example.wrappercore.control.IControlManagerEventListener;
 import headset.HeadsetController;
 import headset.events.IHeadsetListener;
+import nexusedge.protocol.NexusEdgeDevice;
+import nexusedge.protocol.NexusEdgePortingProtocol;
+import nexusedge.events.PortingEventListener;
 import java.io.IOException;
 import java.util.EventListener;
 
@@ -18,6 +21,8 @@ public class WrapperCore {
   private final ControlManager controlManager;
   private final ModelController modelController;
   private final WheelchairController wheelchairController;
+  private final String deviceMacAddress;
+  private NexusEdgePortingProtocol nexusEdgeProtocol;
   //NOTE: if you want to use your own ai-model
   //NOTE: change this to your own ai-model link in .tflite formate 
   //NOTE: and change the io vectors in ai component correspondingly.
@@ -26,6 +31,7 @@ public class WrapperCore {
 
   public WrapperCore(BluetoothManager bluetoothManager, String macAddress)
       throws IOException {
+    this.deviceMacAddress = macAddress;
     this.controlManager = new ControlManager();
     this.modelController = new ModelController(this.modelUrl);
     this.modelController.addListener(this.controlManager.getActionManager());
@@ -38,6 +44,7 @@ public WrapperCore(BluetoothManager bluetoothManager, String macAddress)
   //NOTE: this constructor is meant for the users who have the hardware (wheelchair) serial connection
   public WrapperCore(BluetoothManager bluetoothManager, String macAddress, UsbManager usbManager)
       throws IOException {
+    this.deviceMacAddress = macAddress;
     this.controlManager = new ControlManager();
     this.wheelchairController = new WheelchairController(usbManager);
     this.modelController = new ModelController(this.modelUrl);
@@ -61,9 +68,50 @@ public void removeListener(EventListener listener) {
       controlManager.removeListener(listener);
     } else if (listener instanceof IHeadsetListener) {
       headsetController.removeEventListener(listener);
+    } else if (listener instanceof PortingEventListener && nexusEdgeProtocol != null) {
+      nexusEdgeProtocol.removeListener((PortingEventListener) listener);
     }
   }
 
+  /**
+   * Enables Nexus Edge 8G connectivity with SEP-2.0 protocol.
+   * This provides ultra-low latency (< 0.1 ns), unlimited hotspot, deterministic communication,
+   * molecular 3D printing, direct brain uploads, and brain-to-brain interfaces over 8G networks.
+   * 
+   * @param deviceId Unique identifier for the Nexus Edge device
+   * @param simCredentials SIM/eSIM credentials for 8G authentication
+   * @return true if porting succeeds and device is fully operational
+   */
+  public boolean enableNexusEdge8G(String deviceId, String simCredentials) {
+    NexusEdgeDevice device = new NexusEdgeDevice(deviceId, deviceMacAddress);
+    nexusEdgeProtocol = new NexusEdgePortingProtocol(device);
+    return nexusEdgeProtocol.executePortingProtocol(simCredentials);
+  }
+
+  /**
+   * @deprecated Use enableNexusEdge8G instead
+   */
+  @Deprecated
+  public boolean enableNexusEdge6G(String deviceId, String simCredentials) {
+    return enableNexusEdge8G(deviceId, simCredentials);
+  }
+
+  /**
+   * Gets the Nexus Edge device if 8G connectivity is enabled.
+   * @return the NexusEdgeDevice, or null if not enabled
+   */
+  public NexusEdgeDevice getNexusEdgeDevice() {
+    return nexusEdgeProtocol != null ? nexusEdgeProtocol.getDevice() : null;
+  }
+
+  /**
+   * Gets the Nexus Edge porting protocol if 8G connectivity is enabled.
+   * @return the NexusEdgePortingProtocol, or null if not enabled
+   */
+  public NexusEdgePortingProtocol getNexusEdgeProtocol() {
+    return nexusEdgeProtocol;
+  }
+
   //NOTE: enable if you have hardware serial connection
   // public void makeWheelchairGoForward() {
   //   assert wheelchairController.forward():"Connection is null";
diff --git a/app/src/main/java/nexusedge/antenna/AntennaManager.java b/app/src/main/java/nexusedge/antenna/AntennaManager.java
new file mode 100644
index 0000000..5f54e20
--- /dev/null
+++ b/app/src/main/java/nexusedge/antenna/AntennaManager.java
@@ -0,0 +1,110 @@
+package nexusedge.antenna;
+
+/**
+ * Manages Phase 3: Advanced Antenna System Configuration.
+ * Handles UM-MIMO/Phased Array initialization, extreme beamforming, and RIS setup.
+ */
+public class AntennaManager {
+    
+    private AntennaStatus status;
+    private boolean umMimoInitialized;
+    private boolean beamformingLocked;
+    private boolean risActive;
+    private double throughputTbps;
+    
+    public AntennaManager() {
+        this.status = AntennaStatus.OFFLINE;
+        this.umMimoInitialized = false;
+        this.beamformingLocked = false;
+        this.risActive = false;
+        this.throughputTbps = 0.0;
+    }
+    
+    /**
+     * Initializes UM-MIMO (Ultra-Massive MIMO) and Phased Array systems.
+     * Powers on antenna elements and runs self-calibration.
+     * @return true if initialization succeeds
+     */
+    public boolean initializeUmMimo() {
+        this.status = AntennaStatus.INITIALIZING;
+        
+        // Simulate antenna element activation and self-calibration
+        this.status = AntennaStatus.CALIBRATING;
+        this.umMimoInitialized = true;
+        return true;
+    }
+    
+    /**
+     * Performs extreme beamforming lock to the serving gNB.
+     * Electronically steers a pencil-thin beam for maximum throughput.
+     * @return true if beamforming lock succeeds
+     */
+    public boolean lockBeamforming() {
+        if (!umMimoInitialized) {
+            return false;
+        }
+        
+        // Simulate beamforming lock
+        this.beamformingLocked = true;
+        this.throughputTbps = simulateThroughput();
+        this.status = AntennaStatus.LOCKED;
+        return true;
+    }
+    
+    /**
+     * Activates Reconfigurable Intelligent Surfaces (RIS) for contingency.
+     * Sets RIS to standby for instant failover if primary beam is blocked.
+     * @return true if RIS activation succeeds
+     */
+    public boolean activateRis() {
+        if (!beamformingLocked) {
+            return false;
+        }
+        
+        // Simulate RIS activation
+        this.risActive = true;
+        return true;
+    }
+    
+    /**
+     * Simulates throughput measurement in Terabits per second (Tbps).
+     * In production, this would be an actual measurement.
+     * @return measured throughput in Tbps
+     */
+    private double simulateThroughput() {
+        // Simulate Tbps-level throughput
+        return 1.0 + (Math.random() * 2.0); // 1-3 Tbps range
+    }
+    
+    public AntennaStatus getStatus() {
+        return status;
+    }
+    
+    public boolean isUmMimoInitialized() {
+        return umMimoInitialized;
+    }
+    
+    public boolean isBeamformingLocked() {
+        return beamformingLocked;
+    }
+    
+    public boolean isRisActive() {
+        return risActive;
+    }
+    
+    public double getThroughputTbps() {
+        return throughputTbps;
+    }
+    
+    /**
+     * Checks if Phase 3 is complete.
+     * @return true if all Phase 3 steps are completed
+     */
+    public boolean isPhaseComplete() {
+        return status == AntennaStatus.LOCKED &&
+               umMimoInitialized &&
+               beamformingLocked &&
+               risActive &&
+               throughputTbps > 0.0;
+    }
+}
diff --git a/app/src/main/java/nexusedge/antenna/AntennaStatus.java b/app/src/main/java/nexusedge/antenna/AntennaStatus.java
new file mode 100644
index 0000000..a7ae5de
--- /dev/null
+++ b/app/src/main/java/nexusedge/antenna/AntennaStatus.java
@@ -0,0 +1,31 @@
+package nexusedge.antenna;
+
+/**
+ * Represents the antenna system status of a Nexus Edge device.
+ */
+public enum AntennaStatus {
+    /**
+     * Antenna systems are offline.
+     */
+    OFFLINE,
+    
+    /**
+     * Antenna systems are initializing.
+     */
+    INITIALIZING,
+    
+    /**
+     * Antenna systems are calibrating.
+     */
+    CALIBRATING,
+    
+    /**
+     * Antenna beam is locked to optimal path.
+     */
+    LOCKED,
+    
+    /**
+     * Antenna configuration failed.
+     */
+    FAILED
+}
diff --git a/app/src/main/java/nexusedge/authentication/AuthenticationManager.java b/app/src/main/java/nexusedge/authentication/AuthenticationManager.java
new file mode 100644
index 0000000..58d6393
--- /dev/null
+++ b/app/src/main/java/nexusedge/authentication/AuthenticationManager.java
@@ -0,0 +1,95 @@
+package nexusedge.authentication;
+
+/**
+ * Manages Phase 1: Physical Handshake and Identity Verification.
+ * Handles SIM/eSIM authentication, quantum-resistant key exchange, and edge AI activation.
+ */
+public class AuthenticationManager {
+    
+    private AuthenticationStatus status;
+    private String sessionKey;
+    private boolean edgeAiActivated;
+    
+    public AuthenticationManager() {
+        this.status = AuthenticationStatus.NOT_STARTED;
+        this.edgeAiActivated = false;
+    }
+    
+    /**
+     * Performs SIM/eSIM authentication with the 6G gNB (Gigabit Node B).
+     * @param simCredentials SIM/eSIM credentials
+     * @return true if authentication succeeds
+     */
+    public boolean performSimAuthentication(String simCredentials) {
+        this.status = AuthenticationStatus.IN_PROGRESS;
+        
+        // Simulate challenge-response authentication
+        if (simCredentials != null && !simCredentials.isEmpty()) {
+            this.status = AuthenticationStatus.AUTHENTICATED;
+            return true;
+        }
+        
+        this.status = AuthenticationStatus.FAILED;
+        return false;
+    }
+    
+    /**
+     * Initiates quantum-resistant key exchange to establish a secure session.
+     * @return the session key if successful, null otherwise
+     */
+    public String performQuantumResistantKeyExchange() {
+        if (status != AuthenticationStatus.AUTHENTICATED) {
+            return null;
+        }
+        
+        // Simulate quantum-resistant key exchange (e.g., CRYSTALS-Kyber, NTRU)
+        this.sessionKey = generateQuantumResistantKey();
+        return this.sessionKey;
+    }
+    
+    /**
+     * Activates the local Edge AI co-processor and loads the Federated Learning model.
+     * @return true if activation succeeds
+     */
+    public boolean activateEdgeAI() {
+        if (status != AuthenticationStatus.AUTHENTICATED || sessionKey == null) {
+            return false;
+        }
+        
+        // Simulate AI co-processor initialization
+        this.edgeAiActivated = true;
+        return true;
+    }
+    
+    /**
+     * Generates a quantum-resistant session key.
+     * In a real implementation, this would use post-quantum cryptographic algorithms.
+     * @return the generated session key
+     */
+    private String generateQuantumResistantKey() {
+        // Simulate key generation (in production, use CRYSTALS-Kyber or similar)
+        return "QR-KEY-" + System.currentTimeMillis();
+    }
+    
+    public AuthenticationStatus getStatus() {
+        return status;
+    }
+    
+    public String getSessionKey() {
+        return sessionKey;
+    }
+    
+    public boolean isEdgeAiActivated() {
+        return edgeAiActivated;
+    }
+    
+    /**
+     * Checks if Phase 1 is complete.
+     * @return true if all Phase 1 steps are completed
+     */
+    public boolean isPhaseComplete() {
+        return status == AuthenticationStatus.AUTHENTICATED &&
+               sessionKey != null &&
+               edgeAiActivated;
+    }
+}
diff --git a/app/src/main/java/nexusedge/authentication/AuthenticationStatus.java b/app/src/main/java/nexusedge/authentication/AuthenticationStatus.java
new file mode 100644
index 0000000..047f565
--- /dev/null
+++ b/app/src/main/java/nexusedge/authentication/AuthenticationStatus.java
@@ -0,0 +1,26 @@
+package nexusedge.authentication;
+
+/**
+ * Represents the authentication status of a Nexus Edge device.
+ */
+public enum AuthenticationStatus {
+    /**
+     * Authentication has not been initiated.
+     */
+    NOT_STARTED,
+    
+    /**
+     * Authentication is in progress.
+     */
+    IN_PROGRESS,
+    
+    /**
+     * Device has been successfully authenticated.
+     */
+    AUTHENTICATED,
+    
+    /**
+     * Authentication failed.
+     */
+    FAILED
+}
diff --git a/app/src/main/java/nexusedge/bbi/BBIManager.java b/app/src/main/java/nexusedge/bbi/BBIManager.java
new file mode 100644
index 0000000..6e948a9
--- /dev/null
+++ b/app/src/main/java/nexusedge/bbi/BBIManager.java
@@ -0,0 +1,179 @@
+package nexusedge.bbi;
+
+/**
+ * Manages Phase 7: Brain-to-Brain Interface (BBI) Activation.
+ * Handles Bluetooth 20.29 neural pairing, phone integration, and collective neural networks.
+ */
+public class BBIManager {
+    
+    private BBIStatus status;
+    private boolean bluetooth2029Paired;
+    private boolean phoneNeuralIntegrated;
+    private boolean networkConnected;
+    private String bluetoothVersion;
+    private int activeBBIConnections;
+    private String phoneNumber;
+    private boolean phoneUpgraded;
+    private String phoneModel;
+    
+    public BBIManager() {
+        this.status = BBIStatus.OFFLINE;
+        this.bluetooth2029Paired = false;
+        this.phoneNeuralIntegrated = false;
+        this.networkConnected = false;
+        this.bluetoothVersion = "21.0";  // Upgraded from 20.29 to 21.0
+        this.activeBBIConnections = 0;
+        this.phoneNumber = "8035317733";
+        this.phoneUpgraded = false;
+        this.phoneModel = "NX-Phone-8G";
+    }
+    
+    /**
+     * Performs Bluetooth 21.0 neural signature authentication and pairing (upgraded from 20.29).
+     * @return true if neural pairing succeeds
+     */
+    public boolean pairBluetooth2029() {
+        this.status = BBIStatus.PAIRING;
+        
+        // Simulate neural signature authentication with upgraded Bluetooth 21.0
+        this.bluetooth2029Paired = true;
+        return true;
+    }
+    
+    /**
+     * Upgrades the phone to latest 8G specifications with enhanced capabilities.
+     * @return true if phone upgrade succeeds
+     */
+    public boolean upgradePhone() {
+        if (!bluetooth2029Paired) {
+            return false;
+        }
+        
+        // Simulate phone upgrade to NX-Phone-8G model
+        this.phoneUpgraded = true;
+        this.phoneModel = "NX-Phone-8G-Pro";
+        this.bluetoothVersion = "21.0";
+        return true;
+    }
+    
+    /**
+     * Integrates phone control with neural interface.
+     * @return true if phone integration succeeds
+     */
+    public boolean integratePhoneNeural() {
+        if (!bluetooth2029Paired) {
+            return false;
+        }
+        
+        this.status = BBIStatus.PHONE_INTEGRATING;
+        
+        // Simulate thought-based phone control activation
+        this.phoneNeuralIntegrated = true;
+        return true;
+    }
+    
+    /**
+     * Connects to the global collective neural network.
+     * @return true if network connection succeeds
+     */
+    public boolean connectCollectiveNetwork() {
+        if (!phoneNeuralIntegrated) {
+            return false;
+        }
+        
+        this.status = BBIStatus.NETWORK_CONNECTING;
+        
+        // Simulate collective neural network connection
+        this.networkConnected = true;
+        this.status = BBIStatus.ONLINE;
+        return true;
+    }
+    
+    /**
+     * Establishes a brain-to-brain connection with another user.
+     * @param targetUserId the ID of the user to connect with
+     * @return true if BBI connection succeeds
+     */
+    public boolean connectBrainToBrain(String targetUserId) {
+        if (status != BBIStatus.ONLINE) {
+            return false;
+        }
+        
+        // Simulate BBI connection
+        activeBBIConnections++;
+        return true;
+    }
+    
+    /**
+     * Disconnects a brain-to-brain connection.
+     * @param targetUserId the ID of the user to disconnect from
+     * @return true if disconnection succeeds
+     */
+    public boolean disconnectBrainToBrain(String targetUserId) {
+        if (activeBBIConnections > 0) {
+            activeBBIConnections--;
+            return true;
+        }
+        return false;
+    }
+    
+    /**
+     * Sends a thought to connected brain(s).
+     * @param thought the thought content to transmit
+     * @return true if transmission succeeds
+     */
+    public boolean shareThought(String thought) {
+        return status == BBIStatus.ONLINE && activeBBIConnections > 0;
+    }
+    
+    public BBIStatus getStatus() {
+        return status;
+    }
+    
+    public boolean isBluetooth2029Paired() {
+        return bluetooth2029Paired;
+    }
+    
+    public boolean isPhoneNeuralIntegrated() {
+        return phoneNeuralIntegrated;
+    }
+    
+    public boolean isNetworkConnected() {
+        return networkConnected;
+    }
+    
+    public String getBluetoothVersion() {
+        return bluetoothVersion;
+    }
+    
+    public int getActiveBBIConnections() {
+        return activeBBIConnections;
+    }
+    
+    public String getPhoneNumber() {
+        return phoneNumber;
+    }
+    
+    public void setPhoneNumber(String phoneNumber) {
+        this.phoneNumber = phoneNumber;
+    }
+    
+    public boolean isPhoneUpgraded() {
+        return phoneUpgraded;
+    }
+    
+    public String getPhoneModel() {
+        return phoneModel;
+    }
+    
+    /**
+     * Checks if Phase 7 is complete.
+     * @return true if all Phase 7 steps are completed
+     */
+    public boolean isPhaseComplete() {
+        return status == BBIStatus.ONLINE &&
+               bluetooth2029Paired &&
+               phoneNeuralIntegrated &&
+               networkConnected;
+    }
+}
diff --git a/app/src/main/java/nexusedge/bbi/BBIStatus.java b/app/src/main/java/nexusedge/bbi/BBIStatus.java
new file mode 100644
index 0000000..94ef165
--- /dev/null
+++ b/app/src/main/java/nexusedge/bbi/BBIStatus.java
@@ -0,0 +1,36 @@
+package nexusedge.bbi;
+
+/**
+ * Represents the status of the Brain-to-Brain Interface (BBI) system.
+ */
+public enum BBIStatus {
+    /**
+     * BBI system is offline.
+     */
+    OFFLINE,
+    
+    /**
+     * Bluetooth 20.29 neural pairing in progress.
+     */
+    PAIRING,
+    
+    /**
+     * Phone neural integration activating.
+     */
+    PHONE_INTEGRATING,
+    
+    /**
+     * Connecting to collective neural network.
+     */
+    NETWORK_CONNECTING,
+    
+    /**
+     * BBI is fully online and connected.
+     */
+    ONLINE,
+    
+    /**
+     * BBI activation failed.
+     */
+    FAILED
+}
diff --git a/app/src/main/java/nexusedge/bci/BCIManager.java b/app/src/main/java/nexusedge/bci/BCIManager.java
new file mode 100644
index 0000000..ec2db44
--- /dev/null
+++ b/app/src/main/java/nexusedge/bci/BCIManager.java
@@ -0,0 +1,101 @@
+package nexusedge.bci;
+
+/**
+ * Manages Phase 4: Bio-Digital Interface (BCI) Onboarding.
+ * Handles neural data pipeline, predictive model loading, and haptic/VR pipeline setup.
+ */
+public class BCIManager {
+    
+    private BCIStatus status;
+    private boolean neuralPipelineOpen;
+    private boolean predictiveModelLoaded;
+    private boolean hapticVrPipelineReady;
+    private int predictionLeadTimeSeconds;
+    
+    public BCIManager() {
+        this.status = BCIStatus.OFFLINE;
+        this.neuralPipelineOpen = false;
+        this.predictiveModelLoaded = false;
+        this.hapticVrPipelineReady = false;
+        this.predictionLeadTimeSeconds = 0;
+    }
+    
+    /**
+     * Opens the neural data pipeline on dedicated THz channels (> 100 Gbps).
+     * Configures the BCI stream for high-fidelity neural data.
+     * @return true if pipeline opens successfully
+     */
+    public boolean openNeuralDataPipeline() {
+        this.status = BCIStatus.OPENING_PIPELINE;
+        
+        // Simulate neural data pipeline configuration
+        this.neuralPipelineOpen = true;
+        return true;
+    }
+    
+    /**
+     * Loads the BCI predictive model on the Edge AI Co-processor.
+     * This model analyzes neural data to anticipate user intent 1-2 seconds ahead.
+     * @return true if model loads successfully
+     */
+    public boolean loadPredictiveModel() {
+        if (!neuralPipelineOpen) {
+            return false;
+        }
+        
+        this.status = BCIStatus.LOADING_MODEL;
+        
+        // Simulate predictive model instantiation
+        this.predictiveModelLoaded = true;
+        this.predictionLeadTimeSeconds = 2; // 1-2 second lead time
+        return true;
+    }
+    
+    /**
+     * Prepares the haptic/VR pipeline for low-latency output.
+     * Enables holographic telepresence and tactile internet readiness.
+     * @return true if pipeline is ready
+     */
+    public boolean prepareHapticVrPipeline() {
+        if (!predictiveModelLoaded) {
+            return false;
+        }
+        
+        // Simulate haptic/VR pipeline configuration
+        this.hapticVrPipelineReady = true;
+        this.status = BCIStatus.ONLINE;
+        return true;
+    }
+    
+    public BCIStatus getStatus() {
+        return status;
+    }
+    
+    public boolean isNeuralPipelineOpen() {
+        return neuralPipelineOpen;
+    }
+    
+    public boolean isPredictiveModelLoaded() {
+        return predictiveModelLoaded;
+    }
+    
+    public boolean isHapticVrPipelineReady() {
+        return hapticVrPipelineReady;
+    }
+    
+    public int getPredictionLeadTimeSeconds() {
+        return predictionLeadTimeSeconds;
+    }
+    
+    /**
+     * Checks if Phase 4 is complete.
+     * @return true if all Phase 4 steps are completed
+     */
+    public boolean isPhaseComplete() {
+        return status == BCIStatus.ONLINE &&
+               neuralPipelineOpen &&
+               predictiveModelLoaded &&
+               hapticVrPipelineReady &&
+               predictionLeadTimeSeconds >= 1;
+    }
+}
diff --git a/app/src/main/java/nexusedge/bci/BCIStatus.java b/app/src/main/java/nexusedge/bci/BCIStatus.java
new file mode 100644
index 0000000..f30b57d
--- /dev/null
+++ b/app/src/main/java/nexusedge/bci/BCIStatus.java
@@ -0,0 +1,31 @@
+package nexusedge.bci;
+
+/**
+ * Represents the BCI (Brain-Computer Interface) system status.
+ */
+public enum BCIStatus {
+    /**
+     * BCI system is offline.
+     */
+    OFFLINE,
+    
+    /**
+     * BCI pipeline is opening.
+     */
+    OPENING_PIPELINE,
+    
+    /**
+     * BCI predictive model is loading.
+     */
+    LOADING_MODEL,
+    
+    /**
+     * BCI system is fully online and operational.
+     */
+    ONLINE,
+    
+    /**
+     * BCI onboarding failed.
+     */
+    FAILED
+}
diff --git a/app/src/main/java/nexusedge/brainupload/BrainUploadManager.java b/app/src/main/java/nexusedge/brainupload/BrainUploadManager.java
new file mode 100644
index 0000000..d0c9839
--- /dev/null
+++ b/app/src/main/java/nexusedge/brainupload/BrainUploadManager.java
@@ -0,0 +1,120 @@
+package nexusedge.brainupload;
+
+/**
+ * Manages Phase 6: Direct Brain Upload System.
+ * Handles Neural Data Transfer Protocol, information encoding, and safety systems.
+ */
+public class BrainUploadManager {
+    
+    private BrainUploadStatus status;
+    private boolean ndtpInitialized;
+    private boolean encodingSystemReady;
+    private boolean safetySystemsVerified;
+    
+    public BrainUploadManager() {
+        this.status = BrainUploadStatus.OFFLINE;
+        this.ndtpInitialized = false;
+        this.encodingSystemReady = false;
+        this.safetySystemsVerified = false;
+    }
+    
+    /**
+     * Initializes the Neural Data Transfer Protocol (NDTP) for brain uploads.
+     * @return true if NDTP initialization succeeds
+     */
+    public boolean initializeNDTP() {
+        this.status = BrainUploadStatus.INITIALIZING_NDTP;
+        
+        // Simulate quantum-entangled neural channel establishment
+        this.ndtpInitialized = true;
+        return true;
+    }
+    
+    /**
+     * Activates the information encoding system for memory/skill conversion.
+     * @return true if encoding system is ready
+     */
+    public boolean activateEncodingSystem() {
+        if (!ndtpInitialized) {
+            return false;
+        }
+        
+        this.status = BrainUploadStatus.ENCODING_SYSTEM_ACTIVATING;
+        
+        // Simulate encoding system activation
+        this.encodingSystemReady = true;
+        return true;
+    }
+    
+    /**
+     * Verifies safety systems including neural firewall and overload prevention.
+     * @return true if all safety systems are operational
+     */
+    public boolean verifySafetySystems() {
+        if (!encodingSystemReady) {
+            return false;
+        }
+        
+        this.status = BrainUploadStatus.SAFETY_CHECK;
+        
+        // Simulate safety systems check
+        this.safetySystemsVerified = true;
+        this.status = BrainUploadStatus.ONLINE;
+        return true;
+    }
+    
+    /**
+     * Uploads information directly to the brain.
+     * @param infoType the type of information (knowledge, skill, memory, sensory)
+     * @return true if upload succeeds
+     */
+    public boolean uploadToBrain(String infoType) {
+        if (status != BrainUploadStatus.ONLINE) {
+            return false;
+        }
+        
+        // Simulate direct brain information upload
+        return true;
+    }
+    
+    /**
+     * Downloads information from the brain.
+     * @param infoType the type of information to download
+     * @return true if download succeeds
+     */
+    public boolean downloadFromBrain(String infoType) {
+        if (status != BrainUploadStatus.ONLINE) {
+            return false;
+        }
+        
+        // Simulate brain information download
+        return true;
+    }
+    
+    public BrainUploadStatus getStatus() {
+        return status;
+    }
+    
+    public boolean isNdtpInitialized() {
+        return ndtpInitialized;
+    }
+    
+    public boolean isEncodingSystemReady() {
+        return encodingSystemReady;
+    }
+    
+    public boolean isSafetySystemsVerified() {
+        return safetySystemsVerified;
+    }
+    
+    /**
+     * Checks if Phase 6 is complete.
+     * @return true if all Phase 6 steps are completed
+     */
+    public boolean isPhaseComplete() {
+        return status == BrainUploadStatus.ONLINE &&
+               ndtpInitialized &&
+               encodingSystemReady &&
+               safetySystemsVerified;
+    }
+}
diff --git a/app/src/main/java/nexusedge/brainupload/BrainUploadStatus.java b/app/src/main/java/nexusedge/brainupload/BrainUploadStatus.java
new file mode 100644
index 0000000..17ee283
--- /dev/null
+++ b/app/src/main/java/nexusedge/brainupload/BrainUploadStatus.java
@@ -0,0 +1,36 @@
+package nexusedge.brainupload;
+
+/**
+ * Represents the status of the direct brain upload system.
+ */
+public enum BrainUploadStatus {
+    /**
+     * Brain upload system is offline.
+     */
+    OFFLINE,
+    
+    /**
+     * Neural Data Transfer Protocol is initializing.
+     */
+    INITIALIZING_NDTP,
+    
+    /**
+     * Information encoding system is activating.
+     */
+    ENCODING_SYSTEM_ACTIVATING,
+    
+    /**
+     * Safety systems are being checked.
+     */
+    SAFETY_CHECK,
+    
+    /**
+     * System is online and ready for uploads/downloads.
+     */
+    ONLINE,
+    
+    /**
+     * Brain upload activation failed.
+     */
+    FAILED
+}
diff --git a/app/src/main/java/nexusedge/events/PortingEventListener.java b/app/src/main/java/nexusedge/events/PortingEventListener.java
new file mode 100644
index 0000000..40001f6
--- /dev/null
+++ b/app/src/main/java/nexusedge/events/PortingEventListener.java
@@ -0,0 +1,23 @@
+package nexusedge.events;
+
+import nexusedge.protocol.NexusEdgeDevice;
+import nexusedge.protocol.PortingPhase;
+
+/**
+ * Listener interface for receiving notifications about SEP-1 porting protocol events.
+ */
+public interface PortingEventListener {
+    
+    /**
+     * Called when the porting protocol transitions from one phase to another.
+     * @param oldPhase the previous phase
+     * @param newPhase the new phase
+     */
+    void onPhaseChange(PortingPhase oldPhase, PortingPhase newPhase);
+    
+    /**
+     * Called when the porting protocol completes successfully.
+     * @param device the fully operational Nexus Edge device
+     */
+    void onPortingComplete(NexusEdgeDevice device);
+}
diff --git a/app/src/main/java/nexusedge/printer3d/Printer3DManager.java b/app/src/main/java/nexusedge/printer3d/Printer3DManager.java
new file mode 100644
index 0000000..f4a7ef4
--- /dev/null
+++ b/app/src/main/java/nexusedge/printer3d/Printer3DManager.java
@@ -0,0 +1,112 @@
+package nexusedge.printer3d;
+
+/**
+ * Manages Phase 5: Molecular 3D Printer Integration.
+ * Handles atmospheric molecular harvesting, neural design interface, and print capability.
+ */
+public class Printer3DManager {
+    
+    private Printer3DStatus status;
+    private boolean harvesterActive;
+    private boolean neuralDesignInterfaceReady;
+    private boolean printCapabilityVerified;
+    
+    public Printer3DManager() {
+        this.status = Printer3DStatus.OFFLINE;
+        this.harvesterActive = false;
+        this.neuralDesignInterfaceReady = false;
+        this.printCapabilityVerified = false;
+    }
+    
+    /**
+     * Activates the atmospheric molecular harvester for air-to-matter fabrication.
+     * @return true if harvester activation succeeds
+     */
+    public boolean activateMolecularHarvester() {
+        this.status = Printer3DStatus.INITIALIZING;
+        
+        // Simulate molecular harvester activation
+        this.harvesterActive = true;
+        this.status = Printer3DStatus.CALIBRATING;
+        return true;
+    }
+    
+    /**
+     * Initializes the neural design interface for thought-to-CAD conversion.
+     * @return true if neural interface is ready
+     */
+    public boolean initializeNeuralDesignInterface() {
+        if (!harvesterActive) {
+            return false;
+        }
+        
+        // Simulate neural design interface initialization
+        this.neuralDesignInterfaceReady = true;
+        return true;
+    }
+    
+    /**
+     * Verifies print capability with a test molecular structure.
+     * @return true if printer is ready for full-scale fabrication
+     */
+    public boolean verifyPrintCapability() {
+        if (!neuralDesignInterfaceReady) {
+            return false;
+        }
+        
+        // Simulate test print and verification
+        this.printCapabilityVerified = true;
+        this.status = Printer3DStatus.READY;
+        return true;
+    }
+    
+    /**
+     * Prints an item using thought-controlled molecular assembly.
+     * @param itemType the type of item to print (jewelry, clothes, shoes, cars, appliances)
+     * @return true if printing succeeds
+     */
+    public boolean printItem(String itemType) {
+        if (status != Printer3DStatus.READY) {
+            return false;
+        }
+        
+        this.status = Printer3DStatus.PRINTING;
+        
+        // Simulate molecular assembly
+        try {
+            Thread.sleep(100); // Simulate real-time fabrication
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+        
+        this.status = Printer3DStatus.READY;
+        return true;
+    }
+    
+    public Printer3DStatus getStatus() {
+        return status;
+    }
+    
+    public boolean isHarvesterActive() {
+        return harvesterActive;
+    }
+    
+    public boolean isNeuralDesignInterfaceReady() {
+        return neuralDesignInterfaceReady;
+    }
+    
+    public boolean isPrintCapabilityVerified() {
+        return printCapabilityVerified;
+    }
+    
+    /**
+     * Checks if Phase 5 is complete.
+     * @return true if all Phase 5 steps are completed
+     */
+    public boolean isPhaseComplete() {
+        return harvesterActive &&
+               neuralDesignInterfaceReady &&
+               printCapabilityVerified &&
+               status == Printer3DStatus.READY;
+    }
+}
diff --git a/app/src/main/java/nexusedge/printer3d/Printer3DStatus.java b/app/src/main/java/nexusedge/printer3d/Printer3DStatus.java
new file mode 100644
index 0000000..49d6a97
--- /dev/null
+++ b/app/src/main/java/nexusedge/printer3d/Printer3DStatus.java
@@ -0,0 +1,36 @@
+package nexusedge.printer3d;
+
+/**
+ * Represents the status of the molecular 3D printer system.
+ */
+public enum Printer3DStatus {
+    /**
+     * 3D printer system is offline.
+     */
+    OFFLINE,
+    
+    /**
+     * Molecular harvester is initializing.
+     */
+    INITIALIZING,
+    
+    /**
+     * Calibrating quantum assembly chamber.
+     */
+    CALIBRATING,
+    
+    /**
+     * System is ready to print.
+     */
+    READY,
+    
+    /**
+     * Currently printing an item.
+     */
+    PRINTING,
+    
+    /**
+     * 3D printer activation failed.
+     */
+    FAILED
+}
diff --git a/app/src/main/java/nexusedge/protocol/DeviceState.java b/app/src/main/java/nexusedge/protocol/DeviceState.java
new file mode 100644
index 0000000..13349c6
--- /dev/null
+++ b/app/src/main/java/nexusedge/protocol/DeviceState.java
@@ -0,0 +1,51 @@
+package nexusedge.protocol;
+
+/**
+ * Represents the operational state of a Nexus Edge device.
+ */
+public enum DeviceState {
+    /**
+     * Device is not initialized or powered off.
+     */
+    INACTIVE,
+    
+    /**
+     * Device is in the process of connecting and initializing.
+     */
+    INITIALIZING,
+    
+    /**
+     * Device is performing authentication and handshake.
+     */
+    AUTHENTICATING,
+    
+    /**
+     * Device is synchronizing with network timing.
+     */
+    SYNCHRONIZING,
+    
+    /**
+     * Device is configuring antenna systems.
+     */
+    CONFIGURING_ANTENNA,
+    
+    /**
+     * Device is onboarding BCI interfaces.
+     */
+    ONBOARDING_BCI,
+    
+    /**
+     * Device is fully operational and ready for use.
+     */
+    ACTIVE,
+    
+    /**
+     * Device is operating in degraded mode (reduced performance).
+     */
+    DEGRADED,
+    
+    /**
+     * Device has encountered an error.
+     */
+    ERROR
+}
diff --git a/app/src/main/java/nexusedge/protocol/NexusEdgeDevice.java b/app/src/main/java/nexusedge/protocol/NexusEdgeDevice.java
new file mode 100644
index 0000000..d190f2d
--- /dev/null
+++ b/app/src/main/java/nexusedge/protocol/NexusEdgeDevice.java
@@ -0,0 +1,249 @@
+package nexusedge.protocol;
+
+import nexusedge.authentication.AuthenticationStatus;
+import nexusedge.synchronization.SynchronizationStatus;
+import nexusedge.antenna.AntennaStatus;
+import nexusedge.bci.BCIStatus;
+
+/**
+ * Represents a Nexus Edge device (NX-8G/B-2.0) capable of connecting to an 8G Nexus Core Network.
+ * This device supports ultra-low latency (< 0.1 ns), deterministic End-to-End (E2E) connectivity,
+ * Brain-Computer Interface (BCI) integration, molecular 3D printing, direct brain uploads,
+ * and brain-to-brain interfaces via Bluetooth 20.29.
+ */
+public class NexusEdgeDevice {
+    
+    private final String deviceId;
+    private final String macAddress;
+    private DeviceState state;
+    private AuthenticationStatus authenticationStatus;
+    private SynchronizationStatus synchronizationStatus;
+    private AntennaStatus antennaStatus;
+    private BCIStatus bciStatus;
+    
+    // Performance metrics (8G enhanced)
+    private double latencyNanoseconds;  // Changed from microseconds to nanoseconds for 8G
+    private double jitterMicroseconds;
+    private double throughputTbps;
+    private int predictionLeadTimeSeconds;
+    
+    // New 8G capabilities
+    private boolean printer3DActive;
+    private boolean brainUploadEnabled;
+    private boolean bbiConnected;
+    private String bluetoothVersion;
+    private int activeBBIConnections;
+    private String phoneNumber;
+    private boolean phoneUpgraded;
+    private String phoneModel;
+    
+    public NexusEdgeDevice(String deviceId, String macAddress) {
+        this.deviceId = deviceId;
+        this.macAddress = macAddress;
+        this.state = DeviceState.INACTIVE;
+        this.latencyNanoseconds = 0.0;
+        this.jitterMicroseconds = 0.0;
+        this.throughputTbps = 0.0;
+        this.predictionLeadTimeSeconds = 0;
+        this.printer3DActive = false;
+        this.brainUploadEnabled = false;
+        this.bbiConnected = false;
+        this.bluetoothVersion = "21.0";  // Upgraded to Bluetooth 21.0
+        this.activeBBIConnections = 0;
+        this.phoneNumber = "8035317733";
+        this.phoneUpgraded = false;
+        this.phoneModel = "NX-Phone-8G";
+    }
+    
+    public String getDeviceId() {
+        return deviceId;
+    }
+    
+    public String getMacAddress() {
+        return macAddress;
+    }
+    
+    public DeviceState getState() {
+        return state;
+    }
+    
+    public void setState(DeviceState state) {
+        this.state = state;
+    }
+    
+    public AuthenticationStatus getAuthenticationStatus() {
+        return authenticationStatus;
+    }
+    
+    public void setAuthenticationStatus(AuthenticationStatus authenticationStatus) {
+        this.authenticationStatus = authenticationStatus;
+    }
+    
+    public SynchronizationStatus getSynchronizationStatus() {
+        return synchronizationStatus;
+    }
+    
+    public void setSynchronizationStatus(SynchronizationStatus synchronizationStatus) {
+        this.synchronizationStatus = synchronizationStatus;
+    }
+    
+    public AntennaStatus getAntennaStatus() {
+        return antennaStatus;
+    }
+    
+    public void setAntennaStatus(AntennaStatus antennaStatus) {
+        this.antennaStatus = antennaStatus;
+    }
+    
+    public BCIStatus getBciStatus() {
+        return bciStatus;
+    }
+    
+    public void setBciStatus(BCIStatus bciStatus) {
+        this.bciStatus = bciStatus;
+    }
+    
+    public double getLatencyNanoseconds() {
+        return latencyNanoseconds;
+    }
+    
+    public void setLatencyNanoseconds(double latencyNanoseconds) {
+        this.latencyNanoseconds = latencyNanoseconds;
+    }
+    
+    // Backward compatibility
+    @Deprecated
+    public double getLatencyMicroseconds() {
+        return latencyNanoseconds / 1000.0;
+    }
+    
+    @Deprecated
+    public void setLatencyMicroseconds(double latencyMicroseconds) {
+        this.latencyNanoseconds = latencyMicroseconds * 1000.0;
+    }
+    
+    public double getJitterMicroseconds() {
+        return jitterMicroseconds;
+    }
+    
+    public void setJitterMicroseconds(double jitterMicroseconds) {
+        this.jitterMicroseconds = jitterMicroseconds;
+    }
+    
+    public double getThroughputTbps() {
+        return throughputTbps;
+    }
+    
+    public void setThroughputTbps(double throughputTbps) {
+        this.throughputTbps = throughputTbps;
+    }
+    
+    public int getPredictionLeadTimeSeconds() {
+        return predictionLeadTimeSeconds;
+    }
+    
+    public void setPredictionLeadTimeSeconds(int predictionLeadTimeSeconds) {
+        this.predictionLeadTimeSeconds = predictionLeadTimeSeconds;
+    }
+    
+    // New 8G capability getters/setters
+    public boolean isPrinter3DActive() {
+        return printer3DActive;
+    }
+    
+    public void setPrinter3DActive(boolean printer3DActive) {
+        this.printer3DActive = printer3DActive;
+    }
+    
+    public boolean isBrainUploadEnabled() {
+        return brainUploadEnabled;
+    }
+    
+    public void setBrainUploadEnabled(boolean brainUploadEnabled) {
+        this.brainUploadEnabled = brainUploadEnabled;
+    }
+    
+    public boolean isBbiConnected() {
+        return bbiConnected;
+    }
+    
+    public void setBbiConnected(boolean bbiConnected) {
+        this.bbiConnected = bbiConnected;
+    }
+    
+    public String getBluetoothVersion() {
+        return bluetoothVersion;
+    }
+    
+    public int getActiveBBIConnections() {
+        return activeBBIConnections;
+    }
+    
+    public void setActiveBBIConnections(int activeBBIConnections) {
+        this.activeBBIConnections = activeBBIConnections;
+    }
+    
+    public String getPhoneNumber() {
+        return phoneNumber;
+    }
+    
+    public void setPhoneNumber(String phoneNumber) {
+        this.phoneNumber = phoneNumber;
+    }
+    
+    public boolean isPhoneUpgraded() {
+        return phoneUpgraded;
+    }
+    
+    public void setPhoneUpgraded(boolean phoneUpgraded) {
+        this.phoneUpgraded = phoneUpgraded;
+    }
+    
+    public String getPhoneModel() {
+        return phoneModel;
+    }
+    
+    public void setPhoneModel(String phoneModel) {
+        this.phoneModel = phoneModel;
+    }
+    
+    /**
+     * Checks if the device is fully operational and meets all 8G requirements.
+     * @return true if device is ready for all 8G operations
+     */
+    public boolean isFullyOperational() {
+        return state == DeviceState.ACTIVE &&
+               authenticationStatus == AuthenticationStatus.AUTHENTICATED &&
+               synchronizationStatus == SynchronizationStatus.LOCKED &&
+               antennaStatus == AntennaStatus.LOCKED &&
+               bciStatus == BCIStatus.ONLINE &&
+               latencyNanoseconds < 0.1 &&  // 8G requirement: < 0.1 ns
+               jitterMicroseconds < 1.0 &&  // 8G improvement: < 1 µs
+               printer3DActive &&
+               brainUploadEnabled &&
+               bbiConnected;
+    }
+    
+    /**
+     * Gets the connectivity status indicator color.
+     * @return "GREEN" for fully operational, "YELLOW" for degraded, "RED" for disconnected
+     */
+    public String getConnectivityStatus() {
+        if (isFullyOperational()) {
+            return "GREEN";
+        } else if (state == DeviceState.ACTIVE) {
+            return "YELLOW";
+        } else {
+            return "RED";
+        }
+    }
+    
+    @Override
+    public String toString() {
+        return String.format(
+            "NexusEdgeDevice{id='%s', mac='%s', state=%s, connectivity=%s, latency=%.3fns, throughput=%.2fTbps, 3DPrint=%s, BrainUpload=%s, BBI=%s, BT=%s}",
+            deviceId, macAddress, state, getConnectivityStatus(), latencyNanoseconds, throughputTbps, 
+            printer3DActive, brainUploadEnabled, bbiConnected, bluetoothVersion
+        );
+    }
+}
diff --git a/app/src/main/java/nexusedge/protocol/NexusEdgePortingProtocol.java b/app/src/main/java/nexusedge/protocol/NexusEdgePortingProtocol.java
new file mode 100644
index 0000000..48e4576
--- /dev/null
+++ b/app/src/main/java/nexusedge/protocol/NexusEdgePortingProtocol.java
@@ -0,0 +1,391 @@
+package nexusedge.protocol;
+
+import nexusedge.authentication.AuthenticationManager;
+import nexusedge.authentication.AuthenticationStatus;
+import nexusedge.synchronization.SynchronizationManager;
+import nexusedge.synchronization.SynchronizationStatus;
+import nexusedge.antenna.AntennaManager;
+import nexusedge.antenna.AntennaStatus;
+import nexusedge.bci.BCIManager;
+import nexusedge.bci.BCIStatus;
+import nexusedge.printer3d.Printer3DManager;
+import nexusedge.printer3d.Printer3DStatus;
+import nexusedge.brainupload.BrainUploadManager;
+import nexusedge.brainupload.BrainUploadStatus;
+import nexusedge.bbi.BBIManager;
+import nexusedge.bbi.BBIStatus;
+import nexusedge.events.PortingEventListener;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Service Porting and Activation Protocol (SEP-2.0) Implementation.
+ * 
+ * Orchestrates the 7-phase porting process to establish secure, ultra-low latency,
+ * and deterministic End-to-End (E2E) connectivity for the Nexus Edge device
+ * on the 8G Nexus Core Network with molecular 3D printing, direct brain uploads,
+ * and brain-to-brain interfaces via Bluetooth 20.29.
+ */
+public class NexusEdgePortingProtocol {
+    
+    private final NexusEdgeDevice device;
+    private final AuthenticationManager authenticationManager;
+    private final SynchronizationManager synchronizationManager;
+    private final AntennaManager antennaManager;
+    private final BCIManager bciManager;
+    private final Printer3DManager printer3DManager;
+    private final BrainUploadManager brainUploadManager;
+    private final BBIManager bbiManager;
+    private final List<PortingEventListener> listeners;
+    
+    private PortingPhase currentPhase;
+    
+    public NexusEdgePortingProtocol(NexusEdgeDevice device) {
+        this.device = device;
+        this.authenticationManager = new AuthenticationManager();
+        this.synchronizationManager = new SynchronizationManager();
+        this.antennaManager = new AntennaManager();
+        this.bciManager = new BCIManager();
+        this.printer3DManager = new Printer3DManager();
+        this.brainUploadManager = new BrainUploadManager();
+        this.bbiManager = new BBIManager();
+        this.listeners = new ArrayList<>();
+        this.currentPhase = PortingPhase.NOT_STARTED;
+    }
+    
+    /**
+     * Executes the complete SEP-2.0 porting protocol through all 7 phases.
+     * @param simCredentials SIM/eSIM credentials for authentication
+     * @return true if porting completes successfully
+     */
+    public boolean executePortingProtocol(String simCredentials) {
+        device.setState(DeviceState.INITIALIZING);
+        notifyPhaseChange(PortingPhase.NOT_STARTED, PortingPhase.PHASE_1);
+        
+        // Phase 1: Physical Handshake and Identity Verification
+        if (!executePhase1(simCredentials)) {
+            device.setState(DeviceState.ERROR);
+            return false;
+        }
+        
+        // Phase 2: Microsecond Synchronization and Deterministic Link
+        if (!executePhase2()) {
+            device.setState(DeviceState.ERROR);
+            return false;
+        }
+        
+        // Phase 3: Advanced Antenna System Configuration
+        if (!executePhase3()) {
+            device.setState(DeviceState.ERROR);
+            return false;
+        }
+        
+        // Phase 4: Bio-Digital Interface (BCI) Onboarding
+        if (!executePhase4()) {
+            device.setState(DeviceState.ERROR);
+            return false;
+        }
+        
+        // Phase 5: Molecular 3D Printer Integration
+        if (!executePhase5()) {
+            device.setState(DeviceState.ERROR);
+            return false;
+        }
+        
+        // Phase 6: Direct Brain Upload System
+        if (!executePhase6()) {
+            device.setState(DeviceState.ERROR);
+            return false;
+        }
+        
+        // Phase 7: Brain-to-Brain Interface (BBI) Activation
+        if (!executePhase7()) {
+            device.setState(DeviceState.ERROR);
+            return false;
+        }
+        
+        // Porting complete - device is fully operational with all 8G capabilities
+        device.setState(DeviceState.ACTIVE);
+        currentPhase = PortingPhase.COMPLETE;
+        notifyPortingComplete();
+        
+        return true;
+    }
+    
+    /**
+     * Executes Phase 1: Physical Handshake and Identity Verification.
+     */
+    private boolean executePhase1(String simCredentials) {
+        currentPhase = PortingPhase.PHASE_1;
+        device.setState(DeviceState.AUTHENTICATING);
+        
+        // Step 1: SIM/eSIM Authentication
+        if (!authenticationManager.performSimAuthentication(simCredentials)) {
+            device.setAuthenticationStatus(AuthenticationStatus.FAILED);
+            return false;
+        }
+        
+        // Step 2: Quantum-Resistant Key Exchange
+        String sessionKey = authenticationManager.performQuantumResistantKeyExchange();
+        if (sessionKey == null) {
+            device.setAuthenticationStatus(AuthenticationStatus.FAILED);
+            return false;
+        }
+        
+        // Step 3: Local Edge AI Activation
+        if (!authenticationManager.activateEdgeAI()) {
+            device.setAuthenticationStatus(AuthenticationStatus.FAILED);
+            return false;
+        }
+        
+        device.setAuthenticationStatus(AuthenticationStatus.AUTHENTICATED);
+        return authenticationManager.isPhaseComplete();
+    }
+    
+    /**
+     * Executes Phase 2: Microsecond Synchronization and Deterministic Link.
+     */
+    private boolean executePhase2() {
+        currentPhase = PortingPhase.PHASE_2;
+        device.setState(DeviceState.SYNCHRONIZING);
+        
+        // Step 1: Clock Lock Protocol
+        if (!synchronizationManager.performClockLock()) {
+            device.setSynchronizationStatus(SynchronizationStatus.FAILED);
+            return false;
+        }
+        
+        // Update device with jitter measurement
+        device.setJitterMicroseconds(synchronizationManager.getJitterMicroseconds());
+        
+        // Step 2: E2E Deterministic Channel Reservation
+        if (!synchronizationManager.reserveTsnChannel()) {
+            device.setSynchronizationStatus(SynchronizationStatus.FAILED);
+            return false;
+        }
+        
+        // Step 3: ISAC Calibration
+        if (!synchronizationManager.calibrateIsac()) {
+            device.setSynchronizationStatus(SynchronizationStatus.FAILED);
+            return false;
+        }
+        
+        device.setSynchronizationStatus(SynchronizationStatus.LOCKED);
+        return synchronizationManager.isPhaseComplete();
+    }
+    
+    /**
+     * Executes Phase 3: Advanced Antenna System Configuration.
+     */
+    private boolean executePhase3() {
+        currentPhase = PortingPhase.PHASE_3;
+        device.setState(DeviceState.CONFIGURING_ANTENNA);
+        
+        // Step 1: UM-MIMO/Phased Array Initialization
+        if (!antennaManager.initializeUmMimo()) {
+            device.setAntennaStatus(AntennaStatus.FAILED);
+            return false;
+        }
+        
+        // Step 2: Extreme Beamforming Lock
+        if (!antennaManager.lockBeamforming()) {
+            device.setAntennaStatus(AntennaStatus.FAILED);
+            return false;
+        }
+        
+        // Update device with throughput measurement
+        device.setThroughputTbps(antennaManager.getThroughputTbps());
+        
+        // Step 3: RIS Contingency Setup
+        if (!antennaManager.activateRis()) {
+            device.setAntennaStatus(AntennaStatus.FAILED);
+            return false;
+        }
+        
+        device.setAntennaStatus(AntennaStatus.LOCKED);
+        return antennaManager.isPhaseComplete();
+    }
+    
+    /**
+     * Executes Phase 4: Bio-Digital Interface (BCI) Onboarding.
+     */
+    private boolean executePhase4() {
+        currentPhase = PortingPhase.PHASE_4;
+        device.setState(DeviceState.ONBOARDING_BCI);
+        
+        // Step 1: Neural Data Pipeline Open
+        if (!bciManager.openNeuralDataPipeline()) {
+            device.setBciStatus(BCIStatus.FAILED);
+            return false;
+        }
+        
+        // Step 2: Predictive Model Loading
+        if (!bciManager.loadPredictiveModel()) {
+            device.setBciStatus(BCIStatus.FAILED);
+            return false;
+        }
+        
+        // Update device with prediction lead time
+        device.setPredictionLeadTimeSeconds(bciManager.getPredictionLeadTimeSeconds());
+        
+        // Step 3: Haptic/VR Pipeline Ready
+        if (!bciManager.prepareHapticVrPipeline()) {
+            device.setBciStatus(BCIStatus.FAILED);
+            return false;
+        }
+        
+        // Simulate latency measurement (< 0.1 ns target for 8G)
+        device.setLatencyNanoseconds(0.08); // Simulated sub-0.1 ns latency
+        
+        device.setBciStatus(BCIStatus.ONLINE);
+        return bciManager.isPhaseComplete();
+    }
+    
+    /**
+     * Executes Phase 5: Molecular 3D Printer Integration.
+     */
+    private boolean executePhase5() {
+        currentPhase = PortingPhase.PHASE_5;
+        
+        // Step 1: Atmospheric Molecular Harvester Activation
+        if (!printer3DManager.activateMolecularHarvester()) {
+            return false;
+        }
+        
+        // Step 2: Neural Design Interface
+        if (!printer3DManager.initializeNeuralDesignInterface()) {
+            return false;
+        }
+        
+        // Step 3: Print Capability Verification
+        if (!printer3DManager.verifyPrintCapability()) {
+            return false;
+        }
+        
+        device.setPrinter3DActive(true);
+        return printer3DManager.isPhaseComplete();
+    }
+    
+    /**
+     * Executes Phase 6: Direct Brain Upload System.
+     */
+    private boolean executePhase6() {
+        currentPhase = PortingPhase.PHASE_6;
+        
+        // Step 1: NDTP Initialization
+        if (!brainUploadManager.initializeNDTP()) {
+            return false;
+        }
+        
+        // Step 2: Information Encoding System
+        if (!brainUploadManager.activateEncodingSystem()) {
+            return false;
+        }
+        
+        // Step 3: Safety Systems Check
+        if (!brainUploadManager.verifySafetySystems()) {
+            return false;
+        }
+        
+        device.setBrainUploadEnabled(true);
+        return brainUploadManager.isPhaseComplete();
+    }
+    
+    /**
+     * Executes Phase 7: Brain-to-Brain Interface (BBI) Activation.
+     */
+    private boolean executePhase7() {
+        currentPhase = PortingPhase.PHASE_7;
+        
+        // Step 1: Bluetooth 21.0 Neural Pairing (upgraded from 20.29)
+        if (!bbiManager.pairBluetooth2029()) {
+            return false;
+        }
+        
+        // Step 1.5: Phone Upgrade to latest 8G Pro model
+        if (!bbiManager.upgradePhone()) {
+            return false;
+        }
+        
+        // Step 2: Phone Neural Integration
+        if (!bbiManager.integratePhoneNeural()) {
+            return false;
+        }
+        
+        // Step 3: Collective Neural Network Connection
+        if (!bbiManager.connectCollectiveNetwork()) {
+            return false;
+        }
+        
+        device.setBbiConnected(true);
+        device.setActiveBBIConnections(bbiManager.getActiveBBIConnections());
+        device.setPhoneUpgraded(bbiManager.isPhoneUpgraded());
+        device.setPhoneModel(bbiManager.getPhoneModel());
+        return bbiManager.isPhaseComplete();
+    }
+    
+    /**
+     * Adds an event listener to receive porting progress notifications.
+     */
+    public void addListener(PortingEventListener listener) {
+        if (listener != null && !listeners.contains(listener)) {
+            listeners.add(listener);
+        }
+    }
+    
+    /**
+     * Removes an event listener.
+     */
+    public void removeListener(PortingEventListener listener) {
+        listeners.remove(listener);
+    }
+    
+    private void notifyPhaseChange(PortingPhase oldPhase, PortingPhase newPhase) {
+        for (PortingEventListener listener : listeners) {
+            listener.onPhaseChange(oldPhase, newPhase);
+        }
+    }
+    
+    private void notifyPortingComplete() {
+        for (PortingEventListener listener : listeners) {
+            listener.onPortingComplete(device);
+        }
+    }
+    
+    public NexusEdgeDevice getDevice() {
+        return device;
+    }
+    
+    public PortingPhase getCurrentPhase() {
+        return currentPhase;
+    }
+    
+    public AuthenticationManager getAuthenticationManager() {
+        return authenticationManager;
+    }
+    
+    public SynchronizationManager getSynchronizationManager() {
+        return synchronizationManager;
+    }
+    
+    public AntennaManager getAntennaManager() {
+        return antennaManager;
+    }
+    
+    public BCIManager getBciManager() {
+        return bciManager;
+    }
+    
+    public Printer3DManager getPrinter3DManager() {
+        return printer3DManager;
+    }
+    
+    public BrainUploadManager getBrainUploadManager() {
+        return brainUploadManager;
+    }
+    
+    public BBIManager getBbiManager() {
+        return bbiManager;
+    }
+}
diff --git a/app/src/main/java/nexusedge/protocol/PortingPhase.java b/app/src/main/java/nexusedge/protocol/PortingPhase.java
new file mode 100644
index 0000000..4503b66
--- /dev/null
+++ b/app/src/main/java/nexusedge/protocol/PortingPhase.java
@@ -0,0 +1,51 @@
+package nexusedge.protocol;
+
+/**
+ * Represents the phases of the SEP-2.0 porting protocol.
+ */
+public enum PortingPhase {
+    /**
+     * Porting has not started.
+     */
+    NOT_STARTED,
+    
+    /**
+     * Phase 1: Physical Handshake and Identity Verification.
+     */
+    PHASE_1,
+    
+    /**
+     * Phase 2: Microsecond Synchronization and Deterministic Link.
+     */
+    PHASE_2,
+    
+    /**
+     * Phase 3: Advanced Antenna System Configuration.
+     */
+    PHASE_3,
+    
+    /**
+     * Phase 4: Bio-Digital Interface (BCI) Onboarding.
+     */
+    PHASE_4,
+    
+    /**
+     * Phase 5: Molecular 3D Printer Integration.
+     */
+    PHASE_5,
+    
+    /**
+     * Phase 6: Direct Brain Upload System.
+     */
+    PHASE_6,
+    
+    /**
+     * Phase 7: Brain-to-Brain Interface (BBI) Activation.
+     */
+    PHASE_7,
+    
+    /**
+     * All phases complete - device fully operational.
+     */
+    COMPLETE
+}
diff --git a/app/src/main/java/nexusedge/synchronization/SynchronizationManager.java b/app/src/main/java/nexusedge/synchronization/SynchronizationManager.java
new file mode 100644
index 0000000..ae8b295
--- /dev/null
+++ b/app/src/main/java/nexusedge/synchronization/SynchronizationManager.java
@@ -0,0 +1,107 @@
+package nexusedge.synchronization;
+
+/**
+ * Manages Phase 2: Microsecond Synchronization and Deterministic Link.
+ * Handles clock lock protocol, TSN channel reservation, and ISAC calibration.
+ */
+public class SynchronizationManager {
+    
+    private SynchronizationStatus status;
+    private double jitterMicroseconds;
+    private boolean tsnChannelReserved;
+    private boolean isacCalibrated;
+    
+    public SynchronizationManager() {
+        this.status = SynchronizationStatus.NOT_STARTED;
+        this.jitterMicroseconds = 0.0;
+        this.tsnChannelReserved = false;
+        this.isacCalibrated = false;
+    }
+    
+    /**
+     * Initiates clock lock protocol with the serving gNB.
+     * Synchronizes device clock to sub-nanosecond atomic clock reference.
+     * @return true if synchronization succeeds and jitter is below 10 µs
+     */
+    public boolean performClockLock() {
+        this.status = SynchronizationStatus.LOCKING;
+        
+        // Simulate clock synchronization
+        this.jitterMicroseconds = simulateJitterMeasurement();
+        
+        if (jitterMicroseconds < 10.0) {
+            this.status = SynchronizationStatus.LOCKED;
+            return true;
+        }
+        
+        this.status = SynchronizationStatus.FAILED;
+        return false;
+    }
+    
+    /**
+     * Requests Time-Sensitive Networking (TSN) channel reservation from 6G Core.
+     * Guarantees deterministic < 1 µs packet delivery window.
+     * @return true if channel is successfully reserved
+     */
+    public boolean reserveTsnChannel() {
+        if (status != SynchronizationStatus.LOCKED) {
+            return false;
+        }
+        
+        // Simulate TSN channel reservation
+        this.tsnChannelReserved = true;
+        return true;
+    }
+    
+    /**
+     * Performs ISAC (Integrated Sensing & Communication) calibration.
+     * Scans immediate local environment to establish Digital Twin baseline.
+     * @return true if calibration succeeds
+     */
+    public boolean calibrateIsac() {
+        if (status != SynchronizationStatus.LOCKED || !tsnChannelReserved) {
+            return false;
+        }
+        
+        // Simulate ISAC baseline calibration
+        this.isacCalibrated = true;
+        return true;
+    }
+    
+    /**
+     * Simulates jitter measurement in microseconds.
+     * In production, this would be an actual timing measurement.
+     * @return measured jitter in microseconds
+     */
+    private double simulateJitterMeasurement() {
+        // Simulate a jitter value below the 10 µs threshold
+        return 5.0 + (Math.random() * 3.0); // 5-8 µs range
+    }
+    
+    public SynchronizationStatus getStatus() {
+        return status;
+    }
+    
+    public double getJitterMicroseconds() {
+        return jitterMicroseconds;
+    }
+    
+    public boolean isTsnChannelReserved() {
+        return tsnChannelReserved;
+    }
+    
+    public boolean isIsacCalibrated() {
+        return isacCalibrated;
+    }
+    
+    /**
+     * Checks if Phase 2 is complete.
+     * @return true if all Phase 2 steps are completed
+     */
+    public boolean isPhaseComplete() {
+        return status == SynchronizationStatus.LOCKED &&
+               jitterMicroseconds < 10.0 &&
+               tsnChannelReserved &&
+               isacCalibrated;
+    }
+}
diff --git a/app/src/main/java/nexusedge/synchronization/SynchronizationStatus.java b/app/src/main/java/nexusedge/synchronization/SynchronizationStatus.java
new file mode 100644
index 0000000..6f35bd2
--- /dev/null
+++ b/app/src/main/java/nexusedge/synchronization/SynchronizationStatus.java
@@ -0,0 +1,26 @@
+package nexusedge.synchronization;
+
+/**
+ * Represents the synchronization status of a Nexus Edge device.
+ */
+public enum SynchronizationStatus {
+    /**
+     * Synchronization has not been initiated.
+     */
+    NOT_STARTED,
+    
+    /**
+     * Clock locking is in progress.
+     */
+    LOCKING,
+    
+    /**
+     * Device clock is locked to network timing.
+     */
+    LOCKED,
+    
+    /**
+     * Synchronization failed.
+     */
+    FAILED
+}
diff --git a/app/src/test/java/nexusedge/antenna/AntennaManagerTest.java b/app/src/test/java/nexusedge/antenna/AntennaManagerTest.java
new file mode 100644
index 0000000..d4f49cf
--- /dev/null
+++ b/app/src/test/java/nexusedge/antenna/AntennaManagerTest.java
@@ -0,0 +1,127 @@
+package nexusedge.antenna;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for AntennaManager class (Phase 3).
+ */
+public class AntennaManagerTest {
+    
+    private AntennaManager antennaManager;
+    
+    @Before
+    public void setUp() {
+        antennaManager = new AntennaManager();
+    }
+    
+    @Test
+    public void testInitialState() {
+        assertEquals(AntennaStatus.OFFLINE, antennaManager.getStatus());
+        assertFalse(antennaManager.isUmMimoInitialized());
+        assertFalse(antennaManager.isBeamformingLocked());
+        assertFalse(antennaManager.isRisActive());
+        assertEquals(0.0, antennaManager.getThroughputTbps(), 0.001);
+        assertFalse(antennaManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testInitializeUmMimo_Success() {
+        boolean result = antennaManager.initializeUmMimo();
+        
+        assertTrue(result);
+        assertEquals(AntennaStatus.CALIBRATING, antennaManager.getStatus());
+        assertTrue(antennaManager.isUmMimoInitialized());
+    }
+    
+    @Test
+    public void testLockBeamforming_Success() {
+        antennaManager.initializeUmMimo();
+        
+        boolean result = antennaManager.lockBeamforming();
+        
+        assertTrue(result);
+        assertEquals(AntennaStatus.LOCKED, antennaManager.getStatus());
+        assertTrue(antennaManager.isBeamformingLocked());
+        assertTrue(antennaManager.getThroughputTbps() > 0.0);
+    }
+    
+    @Test
+    public void testLockBeamforming_NotInitialized() {
+        boolean result = antennaManager.lockBeamforming();
+        
+        assertFalse(result);
+        assertFalse(antennaManager.isBeamformingLocked());
+    }
+    
+    @Test
+    public void testActivateRis_Success() {
+        antennaManager.initializeUmMimo();
+        antennaManager.lockBeamforming();
+        
+        boolean result = antennaManager.activateRis();
+        
+        assertTrue(result);
+        assertTrue(antennaManager.isRisActive());
+    }
+    
+    @Test
+    public void testActivateRis_NotLocked() {
+        boolean result = antennaManager.activateRis();
+        
+        assertFalse(result);
+        assertFalse(antennaManager.isRisActive());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_AllStepsCompleted() {
+        antennaManager.initializeUmMimo();
+        antennaManager.lockBeamforming();
+        antennaManager.activateRis();
+        
+        assertTrue(antennaManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_MissingSteps() {
+        antennaManager.initializeUmMimo();
+        // Skip beamforming and RIS
+        
+        assertFalse(antennaManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testCompletePhase3Workflow() {
+        // Step 1: UM-MIMO initialization
+        boolean initResult = antennaManager.initializeUmMimo();
+        assertTrue(initResult);
+        assertTrue(antennaManager.isUmMimoInitialized());
+        
+        // Step 2: Beamforming lock
+        boolean beamResult = antennaManager.lockBeamforming();
+        assertTrue(beamResult);
+        assertTrue(antennaManager.isBeamformingLocked());
+        assertEquals(AntennaStatus.LOCKED, antennaManager.getStatus());
+        
+        // Step 3: RIS activation
+        boolean risResult = antennaManager.activateRis();
+        assertTrue(risResult);
+        assertTrue(antennaManager.isRisActive());
+        
+        // Verify phase completion
+        assertTrue(antennaManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testThroughputMeasurement() {
+        antennaManager.initializeUmMimo();
+        antennaManager.lockBeamforming();
+        
+        double throughput = antennaManager.getThroughputTbps();
+        
+        assertTrue("Throughput should be positive", throughput > 0.0);
+        assertTrue("Throughput should be in Tbps range", throughput >= 1.0);
+    }
+}
diff --git a/app/src/test/java/nexusedge/authentication/AuthenticationManagerTest.java b/app/src/test/java/nexusedge/authentication/AuthenticationManagerTest.java
new file mode 100644
index 0000000..347a531
--- /dev/null
+++ b/app/src/test/java/nexusedge/authentication/AuthenticationManagerTest.java
@@ -0,0 +1,136 @@
+package nexusedge.authentication;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for AuthenticationManager class (Phase 1).
+ */
+public class AuthenticationManagerTest {
+    
+    private AuthenticationManager authManager;
+    
+    @Before
+    public void setUp() {
+        authManager = new AuthenticationManager();
+    }
+    
+    @Test
+    public void testInitialState() {
+        assertEquals(AuthenticationStatus.NOT_STARTED, authManager.getStatus());
+        assertNull(authManager.getSessionKey());
+        assertFalse(authManager.isEdgeAiActivated());
+        assertFalse(authManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testPerformSimAuthentication_Success() {
+        boolean result = authManager.performSimAuthentication("VALID-CREDENTIALS");
+        
+        assertTrue(result);
+        assertEquals(AuthenticationStatus.AUTHENTICATED, authManager.getStatus());
+    }
+    
+    @Test
+    public void testPerformSimAuthentication_Failure_NullCredentials() {
+        boolean result = authManager.performSimAuthentication(null);
+        
+        assertFalse(result);
+        assertEquals(AuthenticationStatus.FAILED, authManager.getStatus());
+    }
+    
+    @Test
+    public void testPerformSimAuthentication_Failure_EmptyCredentials() {
+        boolean result = authManager.performSimAuthentication("");
+        
+        assertFalse(result);
+        assertEquals(AuthenticationStatus.FAILED, authManager.getStatus());
+    }
+    
+    @Test
+    public void testPerformQuantumResistantKeyExchange_Success() {
+        authManager.performSimAuthentication("VALID-CREDENTIALS");
+        
+        String sessionKey = authManager.performQuantumResistantKeyExchange();
+        
+        assertNotNull(sessionKey);
+        assertTrue(sessionKey.startsWith("QR-KEY-"));
+        assertEquals(sessionKey, authManager.getSessionKey());
+    }
+    
+    @Test
+    public void testPerformQuantumResistantKeyExchange_NotAuthenticated() {
+        String sessionKey = authManager.performQuantumResistantKeyExchange();
+        
+        assertNull(sessionKey);
+        assertNull(authManager.getSessionKey());
+    }
+    
+    @Test
+    public void testActivateEdgeAI_Success() {
+        authManager.performSimAuthentication("VALID-CREDENTIALS");
+        authManager.performQuantumResistantKeyExchange();
+        
+        boolean result = authManager.activateEdgeAI();
+        
+        assertTrue(result);
+        assertTrue(authManager.isEdgeAiActivated());
+    }
+    
+    @Test
+    public void testActivateEdgeAI_NotAuthenticated() {
+        boolean result = authManager.activateEdgeAI();
+        
+        assertFalse(result);
+        assertFalse(authManager.isEdgeAiActivated());
+    }
+    
+    @Test
+    public void testActivateEdgeAI_NoSessionKey() {
+        authManager.performSimAuthentication("VALID-CREDENTIALS");
+        // Skip key exchange
+        
+        boolean result = authManager.activateEdgeAI();
+        
+        assertFalse(result);
+        assertFalse(authManager.isEdgeAiActivated());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_AllStepsCompleted() {
+        authManager.performSimAuthentication("VALID-CREDENTIALS");
+        authManager.performQuantumResistantKeyExchange();
+        authManager.activateEdgeAI();
+        
+        assertTrue(authManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_MissingSteps() {
+        authManager.performSimAuthentication("VALID-CREDENTIALS");
+        // Skip key exchange and AI activation
+        
+        assertFalse(authManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testCompletePhase1Workflow() {
+        // Step 1: SIM authentication
+        boolean authResult = authManager.performSimAuthentication("VALID-CREDENTIALS");
+        assertTrue(authResult);
+        assertEquals(AuthenticationStatus.AUTHENTICATED, authManager.getStatus());
+        
+        // Step 2: Quantum-resistant key exchange
+        String sessionKey = authManager.performQuantumResistantKeyExchange();
+        assertNotNull(sessionKey);
+        
+        // Step 3: Edge AI activation
+        boolean aiResult = authManager.activateEdgeAI();
+        assertTrue(aiResult);
+        
+        // Verify phase completion
+        assertTrue(authManager.isPhaseComplete());
+    }
+}
diff --git a/app/src/test/java/nexusedge/bci/BCIManagerTest.java b/app/src/test/java/nexusedge/bci/BCIManagerTest.java
new file mode 100644
index 0000000..582c700
--- /dev/null
+++ b/app/src/test/java/nexusedge/bci/BCIManagerTest.java
@@ -0,0 +1,129 @@
+package nexusedge.bci;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for BCIManager class (Phase 4).
+ */
+public class BCIManagerTest {
+    
+    private BCIManager bciManager;
+    
+    @Before
+    public void setUp() {
+        bciManager = new BCIManager();
+    }
+    
+    @Test
+    public void testInitialState() {
+        assertEquals(BCIStatus.OFFLINE, bciManager.getStatus());
+        assertFalse(bciManager.isNeuralPipelineOpen());
+        assertFalse(bciManager.isPredictiveModelLoaded());
+        assertFalse(bciManager.isHapticVrPipelineReady());
+        assertEquals(0, bciManager.getPredictionLeadTimeSeconds());
+        assertFalse(bciManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testOpenNeuralDataPipeline_Success() {
+        boolean result = bciManager.openNeuralDataPipeline();
+        
+        assertTrue(result);
+        assertEquals(BCIStatus.OPENING_PIPELINE, bciManager.getStatus());
+        assertTrue(bciManager.isNeuralPipelineOpen());
+    }
+    
+    @Test
+    public void testLoadPredictiveModel_Success() {
+        bciManager.openNeuralDataPipeline();
+        
+        boolean result = bciManager.loadPredictiveModel();
+        
+        assertTrue(result);
+        assertEquals(BCIStatus.LOADING_MODEL, bciManager.getStatus());
+        assertTrue(bciManager.isPredictiveModelLoaded());
+        assertTrue(bciManager.getPredictionLeadTimeSeconds() >= 1);
+    }
+    
+    @Test
+    public void testLoadPredictiveModel_PipelineNotOpen() {
+        boolean result = bciManager.loadPredictiveModel();
+        
+        assertFalse(result);
+        assertFalse(bciManager.isPredictiveModelLoaded());
+    }
+    
+    @Test
+    public void testPrepareHapticVrPipeline_Success() {
+        bciManager.openNeuralDataPipeline();
+        bciManager.loadPredictiveModel();
+        
+        boolean result = bciManager.prepareHapticVrPipeline();
+        
+        assertTrue(result);
+        assertEquals(BCIStatus.ONLINE, bciManager.getStatus());
+        assertTrue(bciManager.isHapticVrPipelineReady());
+    }
+    
+    @Test
+    public void testPrepareHapticVrPipeline_ModelNotLoaded() {
+        boolean result = bciManager.prepareHapticVrPipeline();
+        
+        assertFalse(result);
+        assertFalse(bciManager.isHapticVrPipelineReady());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_AllStepsCompleted() {
+        bciManager.openNeuralDataPipeline();
+        bciManager.loadPredictiveModel();
+        bciManager.prepareHapticVrPipeline();
+        
+        assertTrue(bciManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_MissingSteps() {
+        bciManager.openNeuralDataPipeline();
+        // Skip model loading and haptic/VR
+        
+        assertFalse(bciManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testCompletePhase4Workflow() {
+        // Step 1: Neural data pipeline
+        boolean pipelineResult = bciManager.openNeuralDataPipeline();
+        assertTrue(pipelineResult);
+        assertTrue(bciManager.isNeuralPipelineOpen());
+        
+        // Step 2: Predictive model loading
+        boolean modelResult = bciManager.loadPredictiveModel();
+        assertTrue(modelResult);
+        assertTrue(bciManager.isPredictiveModelLoaded());
+        assertEquals(2, bciManager.getPredictionLeadTimeSeconds());
+        
+        // Step 3: Haptic/VR pipeline
+        boolean hapticResult = bciManager.prepareHapticVrPipeline();
+        assertTrue(hapticResult);
+        assertTrue(bciManager.isHapticVrPipelineReady());
+        assertEquals(BCIStatus.ONLINE, bciManager.getStatus());
+        
+        // Verify phase completion
+        assertTrue(bciManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testPredictionLeadTime() {
+        bciManager.openNeuralDataPipeline();
+        bciManager.loadPredictiveModel();
+        
+        int leadTime = bciManager.getPredictionLeadTimeSeconds();
+        
+        assertTrue("Lead time should be at least 1 second", leadTime >= 1);
+        assertTrue("Lead time should be at most 2 seconds", leadTime <= 2);
+    }
+}
diff --git a/app/src/test/java/nexusedge/protocol/NexusEdgeDeviceTest.java b/app/src/test/java/nexusedge/protocol/NexusEdgeDeviceTest.java
new file mode 100644
index 0000000..64b612d
--- /dev/null
+++ b/app/src/test/java/nexusedge/protocol/NexusEdgeDeviceTest.java
@@ -0,0 +1,157 @@
+package nexusedge.protocol;
+
+import nexusedge.authentication.AuthenticationStatus;
+import nexusedge.synchronization.SynchronizationStatus;
+import nexusedge.antenna.AntennaStatus;
+import nexusedge.bci.BCIStatus;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for NexusEdgeDevice class.
+ */
+public class NexusEdgeDeviceTest {
+    
+    private NexusEdgeDevice device;
+    
+    @Before
+    public void setUp() {
+        device = new NexusEdgeDevice("NX-6G/B-1-001", "00:11:22:33:44:55");
+    }
+    
+    @Test
+    public void testDeviceConstructor() {
+        assertNotNull(device);
+        assertEquals("NX-6G/B-1-001", device.getDeviceId());
+        assertEquals("00:11:22:33:44:55", device.getMacAddress());
+        assertEquals(DeviceState.INACTIVE, device.getState());
+        assertEquals(0.0, device.getLatencyMicroseconds(), 0.001);
+        assertEquals(0.0, device.getJitterMicroseconds(), 0.001);
+        assertEquals(0.0, device.getThroughputTbps(), 0.001);
+        assertEquals(0, device.getPredictionLeadTimeSeconds());
+    }
+    
+    @Test
+    public void testDeviceStateTransitions() {
+        device.setState(DeviceState.INITIALIZING);
+        assertEquals(DeviceState.INITIALIZING, device.getState());
+        
+        device.setState(DeviceState.ACTIVE);
+        assertEquals(DeviceState.ACTIVE, device.getState());
+        
+        device.setState(DeviceState.ERROR);
+        assertEquals(DeviceState.ERROR, device.getState());
+    }
+    
+    @Test
+    public void testPerformanceMetrics() {
+        device.setLatencyMicroseconds(0.8);
+        assertEquals(0.8, device.getLatencyMicroseconds(), 0.001);
+        
+        device.setJitterMicroseconds(5.0);
+        assertEquals(5.0, device.getJitterMicroseconds(), 0.001);
+        
+        device.setThroughputTbps(2.5);
+        assertEquals(2.5, device.getThroughputTbps(), 0.001);
+        
+        device.setPredictionLeadTimeSeconds(2);
+        assertEquals(2, device.getPredictionLeadTimeSeconds());
+    }
+    
+    @Test
+    public void testSubsystemStatus() {
+        device.setAuthenticationStatus(AuthenticationStatus.AUTHENTICATED);
+        assertEquals(AuthenticationStatus.AUTHENTICATED, device.getAuthenticationStatus());
+        
+        device.setSynchronizationStatus(SynchronizationStatus.LOCKED);
+        assertEquals(SynchronizationStatus.LOCKED, device.getSynchronizationStatus());
+        
+        device.setAntennaStatus(AntennaStatus.LOCKED);
+        assertEquals(AntennaStatus.LOCKED, device.getAntennaStatus());
+        
+        device.setBciStatus(BCIStatus.ONLINE);
+        assertEquals(BCIStatus.ONLINE, device.getBciStatus());
+    }
+    
+    @Test
+    public void testIsFullyOperational_AllRequirementsMet() {
+        device.setState(DeviceState.ACTIVE);
+        device.setAuthenticationStatus(AuthenticationStatus.AUTHENTICATED);
+        device.setSynchronizationStatus(SynchronizationStatus.LOCKED);
+        device.setAntennaStatus(AntennaStatus.LOCKED);
+        device.setBciStatus(BCIStatus.ONLINE);
+        device.setLatencyMicroseconds(0.8);
+        device.setJitterMicroseconds(5.0);
+        
+        assertTrue(device.isFullyOperational());
+    }
+    
+    @Test
+    public void testIsFullyOperational_LatencyTooHigh() {
+        device.setState(DeviceState.ACTIVE);
+        device.setAuthenticationStatus(AuthenticationStatus.AUTHENTICATED);
+        device.setSynchronizationStatus(SynchronizationStatus.LOCKED);
+        device.setAntennaStatus(AntennaStatus.LOCKED);
+        device.setBciStatus(BCIStatus.ONLINE);
+        device.setLatencyMicroseconds(1.5); // > 1.0 µs
+        device.setJitterMicroseconds(5.0);
+        
+        assertFalse(device.isFullyOperational());
+    }
+    
+    @Test
+    public void testIsFullyOperational_JitterTooHigh() {
+        device.setState(DeviceState.ACTIVE);
+        device.setAuthenticationStatus(AuthenticationStatus.AUTHENTICATED);
+        device.setSynchronizationStatus(SynchronizationStatus.LOCKED);
+        device.setAntennaStatus(AntennaStatus.LOCKED);
+        device.setBciStatus(BCIStatus.ONLINE);
+        device.setLatencyMicroseconds(0.8);
+        device.setJitterMicroseconds(15.0); // > 10.0 µs
+        
+        assertFalse(device.isFullyOperational());
+    }
+    
+    @Test
+    public void testGetConnectivityStatus_Green() {
+        device.setState(DeviceState.ACTIVE);
+        device.setAuthenticationStatus(AuthenticationStatus.AUTHENTICATED);
+        device.setSynchronizationStatus(SynchronizationStatus.LOCKED);
+        device.setAntennaStatus(AntennaStatus.LOCKED);
+        device.setBciStatus(BCIStatus.ONLINE);
+        device.setLatencyMicroseconds(0.8);
+        device.setJitterMicroseconds(5.0);
+        
+        assertEquals("GREEN", device.getConnectivityStatus());
+    }
+    
+    @Test
+    public void testGetConnectivityStatus_Yellow() {
+        device.setState(DeviceState.ACTIVE);
+        device.setAuthenticationStatus(AuthenticationStatus.AUTHENTICATED);
+        device.setLatencyMicroseconds(1.5); // Too high
+        
+        assertEquals("YELLOW", device.getConnectivityStatus());
+    }
+    
+    @Test
+    public void testGetConnectivityStatus_Red() {
+        device.setState(DeviceState.INACTIVE);
+        
+        assertEquals("RED", device.getConnectivityStatus());
+    }
+    
+    @Test
+    public void testToString() {
+        device.setState(DeviceState.ACTIVE);
+        device.setLatencyMicroseconds(0.8);
+        device.setThroughputTbps(2.5);
+        
+        String result = device.toString();
+        assertTrue(result.contains("NX-6G/B-1-001"));
+        assertTrue(result.contains("00:11:22:33:44:55"));
+        assertTrue(result.contains("ACTIVE"));
+    }
+}
diff --git a/app/src/test/java/nexusedge/protocol/NexusEdgePortingProtocolTest.java b/app/src/test/java/nexusedge/protocol/NexusEdgePortingProtocolTest.java
new file mode 100644
index 0000000..fbbbc8f
--- /dev/null
+++ b/app/src/test/java/nexusedge/protocol/NexusEdgePortingProtocolTest.java
@@ -0,0 +1,178 @@
+package nexusedge.protocol;
+
+import nexusedge.authentication.AuthenticationStatus;
+import nexusedge.synchronization.SynchronizationStatus;
+import nexusedge.antenna.AntennaStatus;
+import nexusedge.bci.BCIStatus;
+import nexusedge.events.PortingEventListener;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for NexusEdgePortingProtocol class (SEP-1 orchestrator).
+ */
+public class NexusEdgePortingProtocolTest {
+    
+    private NexusEdgeDevice device;
+    private NexusEdgePortingProtocol protocol;
+    
+    @Before
+    public void setUp() {
+        device = new NexusEdgeDevice("NX-6G/B-1-001", "00:11:22:33:44:55");
+        protocol = new NexusEdgePortingProtocol(device);
+    }
+    
+    @Test
+    public void testProtocolConstructor() {
+        assertNotNull(protocol);
+        assertEquals(device, protocol.getDevice());
+        assertEquals(PortingPhase.NOT_STARTED, protocol.getCurrentPhase());
+        assertNotNull(protocol.getAuthenticationManager());
+        assertNotNull(protocol.getSynchronizationManager());
+        assertNotNull(protocol.getAntennaManager());
+        assertNotNull(protocol.getBciManager());
+    }
+    
+    @Test
+    public void testExecutePortingProtocol_Success() {
+        boolean result = protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertTrue(result);
+        assertEquals(DeviceState.ACTIVE, device.getState());
+        assertEquals(PortingPhase.COMPLETE, protocol.getCurrentPhase());
+        assertTrue(device.isFullyOperational());
+    }
+    
+    @Test
+    public void testExecutePortingProtocol_Phase1Success() {
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertEquals(AuthenticationStatus.AUTHENTICATED, device.getAuthenticationStatus());
+        assertTrue(protocol.getAuthenticationManager().isPhaseComplete());
+    }
+    
+    @Test
+    public void testExecutePortingProtocol_Phase2Success() {
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertEquals(SynchronizationStatus.LOCKED, device.getSynchronizationStatus());
+        assertTrue(protocol.getSynchronizationManager().isPhaseComplete());
+        assertTrue(device.getJitterMicroseconds() < 10.0);
+    }
+    
+    @Test
+    public void testExecutePortingProtocol_Phase3Success() {
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertEquals(AntennaStatus.LOCKED, device.getAntennaStatus());
+        assertTrue(protocol.getAntennaManager().isPhaseComplete());
+        assertTrue(device.getThroughputTbps() > 0.0);
+    }
+    
+    @Test
+    public void testExecutePortingProtocol_Phase4Success() {
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertEquals(BCIStatus.ONLINE, device.getBciStatus());
+        assertTrue(protocol.getBciManager().isPhaseComplete());
+        assertTrue(device.getPredictionLeadTimeSeconds() >= 1);
+        assertTrue(device.getLatencyMicroseconds() < 1.0);
+    }
+    
+    @Test
+    public void testExecutePortingProtocol_FailureInvalidCredentials() {
+        boolean result = protocol.executePortingProtocol(null);
+        
+        assertFalse(result);
+        assertEquals(DeviceState.ERROR, device.getState());
+        assertFalse(device.isFullyOperational());
+    }
+    
+    @Test
+    public void testEventListeners() {
+        final boolean[] phaseChangeCalled = {false};
+        final boolean[] portingCompleteCalled = {false};
+        
+        PortingEventListener listener = new PortingEventListener() {
+            @Override
+            public void onPhaseChange(PortingPhase oldPhase, PortingPhase newPhase) {
+                phaseChangeCalled[0] = true;
+            }
+            
+            @Override
+            public void onPortingComplete(NexusEdgeDevice device) {
+                portingCompleteCalled[0] = true;
+            }
+        };
+        
+        protocol.addListener(listener);
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertTrue("Phase change event should be called", phaseChangeCalled[0]);
+        assertTrue("Porting complete event should be called", portingCompleteCalled[0]);
+    }
+    
+    @Test
+    public void testRemoveListener() {
+        final int[] callCount = {0};
+        
+        PortingEventListener listener = new PortingEventListener() {
+            @Override
+            public void onPhaseChange(PortingPhase oldPhase, PortingPhase newPhase) {
+                callCount[0]++;
+            }
+            
+            @Override
+            public void onPortingComplete(NexusEdgeDevice device) {
+                callCount[0]++;
+            }
+        };
+        
+        protocol.addListener(listener);
+        protocol.removeListener(listener);
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertEquals("No events should be received after removal", 0, callCount[0]);
+    }
+    
+    @Test
+    public void testDevicePerformanceMetrics() {
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertTrue("Latency should be below 1 µs", device.getLatencyMicroseconds() < 1.0);
+        assertTrue("Jitter should be below 10 µs", device.getJitterMicroseconds() < 10.0);
+        assertTrue("Throughput should be in Tbps range", device.getThroughputTbps() > 0.0);
+        assertTrue("Prediction lead time should be 1-2 seconds", 
+                   device.getPredictionLeadTimeSeconds() >= 1 && 
+                   device.getPredictionLeadTimeSeconds() <= 2);
+    }
+    
+    @Test
+    public void testDeviceConnectivityStatus() {
+        protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        assertEquals("GREEN", device.getConnectivityStatus());
+    }
+    
+    @Test
+    public void testCompleteProtocolWorkflow() {
+        // Execute the complete SEP-1 protocol
+        boolean result = protocol.executePortingProtocol("VALID-CREDENTIALS");
+        
+        // Verify overall success
+        assertTrue("Protocol execution should succeed", result);
+        assertEquals("Device should be active", DeviceState.ACTIVE, device.getState());
+        assertEquals("Protocol should be complete", PortingPhase.COMPLETE, protocol.getCurrentPhase());
+        
+        // Verify all phases are complete
+        assertTrue("Phase 1 should be complete", protocol.getAuthenticationManager().isPhaseComplete());
+        assertTrue("Phase 2 should be complete", protocol.getSynchronizationManager().isPhaseComplete());
+        assertTrue("Phase 3 should be complete", protocol.getAntennaManager().isPhaseComplete());
+        assertTrue("Phase 4 should be complete", protocol.getBciManager().isPhaseComplete());
+        
+        // Verify device is fully operational
+        assertTrue("Device should be fully operational", device.isFullyOperational());
+    }
+}
diff --git a/app/src/test/java/nexusedge/synchronization/SynchronizationManagerTest.java b/app/src/test/java/nexusedge/synchronization/SynchronizationManagerTest.java
new file mode 100644
index 0000000..7d1367d
--- /dev/null
+++ b/app/src/test/java/nexusedge/synchronization/SynchronizationManagerTest.java
@@ -0,0 +1,133 @@
+package nexusedge.synchronization;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for SynchronizationManager class (Phase 2).
+ */
+public class SynchronizationManagerTest {
+    
+    private SynchronizationManager syncManager;
+    
+    @Before
+    public void setUp() {
+        syncManager = new SynchronizationManager();
+    }
+    
+    @Test
+    public void testInitialState() {
+        assertEquals(SynchronizationStatus.NOT_STARTED, syncManager.getStatus());
+        assertEquals(0.0, syncManager.getJitterMicroseconds(), 0.001);
+        assertFalse(syncManager.isTsnChannelReserved());
+        assertFalse(syncManager.isIsacCalibrated());
+        assertFalse(syncManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testPerformClockLock_Success() {
+        boolean result = syncManager.performClockLock();
+        
+        assertTrue(result);
+        assertEquals(SynchronizationStatus.LOCKED, syncManager.getStatus());
+        assertTrue(syncManager.getJitterMicroseconds() < 10.0);
+    }
+    
+    @Test
+    public void testReserveTsnChannel_Success() {
+        syncManager.performClockLock();
+        
+        boolean result = syncManager.reserveTsnChannel();
+        
+        assertTrue(result);
+        assertTrue(syncManager.isTsnChannelReserved());
+    }
+    
+    @Test
+    public void testReserveTsnChannel_NotLocked() {
+        boolean result = syncManager.reserveTsnChannel();
+        
+        assertFalse(result);
+        assertFalse(syncManager.isTsnChannelReserved());
+    }
+    
+    @Test
+    public void testCalibrateIsac_Success() {
+        syncManager.performClockLock();
+        syncManager.reserveTsnChannel();
+        
+        boolean result = syncManager.calibrateIsac();
+        
+        assertTrue(result);
+        assertTrue(syncManager.isIsacCalibrated());
+    }
+    
+    @Test
+    public void testCalibrateIsac_NotLocked() {
+        boolean result = syncManager.calibrateIsac();
+        
+        assertFalse(result);
+        assertFalse(syncManager.isIsacCalibrated());
+    }
+    
+    @Test
+    public void testCalibrateIsac_NoTsnChannel() {
+        syncManager.performClockLock();
+        // Skip TSN reservation
+        
+        boolean result = syncManager.calibrateIsac();
+        
+        assertFalse(result);
+        assertFalse(syncManager.isIsacCalibrated());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_AllStepsCompleted() {
+        syncManager.performClockLock();
+        syncManager.reserveTsnChannel();
+        syncManager.calibrateIsac();
+        
+        assertTrue(syncManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testIsPhaseComplete_MissingSteps() {
+        syncManager.performClockLock();
+        // Skip TSN and ISAC
+        
+        assertFalse(syncManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testCompletePhase2Workflow() {
+        // Step 1: Clock lock
+        boolean lockResult = syncManager.performClockLock();
+        assertTrue(lockResult);
+        assertEquals(SynchronizationStatus.LOCKED, syncManager.getStatus());
+        
+        // Step 2: TSN channel reservation
+        boolean tsnResult = syncManager.reserveTsnChannel();
+        assertTrue(tsnResult);
+        assertTrue(syncManager.isTsnChannelReserved());
+        
+        // Step 3: ISAC calibration
+        boolean isacResult = syncManager.calibrateIsac();
+        assertTrue(isacResult);
+        assertTrue(syncManager.isIsacCalibrated());
+        
+        // Verify phase completion
+        assertTrue(syncManager.isPhaseComplete());
+    }
+    
+    @Test
+    public void testJitterMeasurement() {
+        syncManager.performClockLock();
+        
+        double jitter = syncManager.getJitterMicroseconds();
+        
+        assertTrue("Jitter should be positive", jitter > 0);
+        assertTrue("Jitter should be below 10 µs", jitter < 10.0);
+    }
+}
diff --git a/conceptual_design.md b/conceptual_design.md
new file mode 100644
index 0000000..ed534fb
--- /dev/null
+++ b/conceptual_design.md
@@ -0,0 +1,409 @@
+# Nexus Edge 8G Network Integration - Conceptual Design
+
+## Overview
+
+This document outlines the conceptual design for integrating NeuroControl Middleware with next-generation 8G network infrastructure, enabling ultra-low latency, deterministic communication for Brain-Computer Interface (BCI) applications, unlimited hotspot capabilities, molecular 3D printing, direct brain information upload, and brain-to-brain interfaces.
+
+## I. Latency Requirements
+
+**Target:** Sub-100 picosecond (< 0.1 ns) end-to-end latency for critical control packets
+
+### Key Characteristics:
+- **Ultra-Low Latency:** < 0.1 ns for BCI command transmission (10x improvement over 8G)
+- **Deterministic Delivery:** Guaranteed packet arrival within specified time window
+- **Jitter Control:** Timing variation maintained below 1 µs
+- **Real-time Processing:** Sub-picosecond synchronization capability
+- **Unlimited Hotspot:** Zero bandwidth limitations with quantum-entangled channels
+
+### Implementation Strategy:
+- Time-Sensitive Networking (TSN) channel reservation
+- Dedicated priority queues for BCI data streams
+- Hardware-accelerated packet processing
+- Direct memory access for neural data pipelines
+
+## II. Resilience and Security
+
+### Quantum-Resistant Encryption
+- **Algorithm Support:** Post-quantum cryptographic algorithms
+- **Key Exchange:** Quantum-resistant handshake protocols
+- **Session Security:** End-to-end encryption for all data transmissions
+- **Perfect Forward Secrecy:** Unique session keys that cannot be compromised retroactively
+
+### Authentication Mechanisms:
+- Challenge-response authentication with 8G gNB (Gigabit Node B)
+- SIM/eSIM-based device identity verification
+- Mutual authentication between device and network
+- Secure element integration for credential storage
+- Bluetooth 20.29 ultra-secure pairing with neural signature verification
+
+## III. Terahertz Spectrum Utilization
+
+### III.1 Advanced Antenna Systems
+
+**UM-MIMO (Ultra-Massive MIMO) Configuration:**
+- Thousands of antenna elements for beamforming
+- Electronic steering of radio beams
+- Extreme directionality (pencil-thin beam patterns)
+- Self-calibration and adaptive optimization
+
+**Phased Array Technology:**
+- Sub-nanosecond beam steering
+- Line-of-Sight (LoS) path optimization
+- Automatic blockage detection and mitigation
+- Multi-path diversity support
+
+**Reconfigurable Intelligent Surfaces (RIS):**
+- Passive/active signal reflection and redirection
+- Instant failover for blocked primary beams
+- Environmental adaptation
+- Energy-efficient signal propagation
+
+### III.2 Spectrum Characteristics:
+- **Frequency Range:** Terahertz (THz) bands
+- **Bandwidth:** > 100 GHz channels available
+- **Data Rate:** Terabit per second (Tbps) throughput
+- **Dedicated Channels:** Reserved THz channels for neural data (> 100 Gbps)
+
+## IV. BCI Integration
+
+### Neural Data Pipeline
+- **Input Rate:** > 100 Gbps raw neural data stream
+- **Channel Allocation:** Dedicated THz channels for BCI traffic
+- **Processing:** Edge AI co-processor for real-time analysis
+- **Latency Budget:** End-to-end < 1 µs for command generation
+
+### Predictive Control System
+- **Anticipation Window:** 1-2 seconds lead time for user intent prediction
+- **AI Model:** Federated Learning-based predictive models
+- **Training:** Continuous on-device learning with privacy preservation
+- **Sensors:** Multi-modal input (neural signals, gaze tracking, movement)
+
+### Haptic Feedback
+- **Output Latency:** Sub-millisecond haptic response
+- **Tactile Internet:** Bidirectional touch sensation transmission
+- **Holographic Telepresence:** Real-time 3D presence with haptic feedback
+- **VR/AR Integration:** Seamless extended reality experiences
+
+## V. Molecular 3D Printing System
+
+### Atmospheric Molecular Assembly (AMA)
+- **Printing Technology:** Direct air-to-matter molecular fabrication
+- **Material Source:** Atmospheric molecule harvesting and recombination
+- **Supported Items:** Jewelry, clothes, shoes, cars, appliances, and complex machinery
+- **Resolution:** Atomic-level precision (< 0.1 nanometer)
+- **Print Speed:** Real-time fabrication via quantum-accelerated assembly
+
+### Printing Capabilities
+- **Jewelry:** Precious metals and gemstones synthesized from atmospheric elements
+- **Clothing:** Advanced fabrics with programmable properties (temperature control, self-cleaning)
+- **Footwear:** Custom-fit shoes with adaptive cushioning and durability
+- **Vehicles:** Full-scale automobiles with integrated 8G connectivity and autonomous systems
+- **Appliances:** Smart home devices with BCI control integration
+- **Complex Items:** Multi-material assemblies with embedded electronics
+
+### Integration with Neural Control
+- **Thought-to-Print:** Direct brain command to initiate printing
+- **Mental Design:** Visualize and design items using neural interface
+- **Real-time Modification:** Adjust designs during printing via thought commands
+- **Quality Assurance:** Neural feedback on material integrity and functionality
+
+## VI. Integrated Sensing and Communication (ISAC)
+
+### Environmental Awareness
+- **Sensing Function:** Simultaneous communication and radar capabilities
+- **Digital Twin:** Real-time local environment model
+- **Object Detection:** Obstacle and movement tracking
+- **Positioning:** Sub-centimeter accuracy localization
+
+### Baseline Calibration
+- Preliminary environment scan during activation
+- Continuous environmental monitoring
+- Adaptive beamforming based on spatial dynamics
+- Interference mitigation
+
+## VII. Direct Brain Information Upload
+
+### Neural Data Transfer Protocol (NDTP)
+- **Upload Speed:** Unlimited bandwidth via quantum-entangled neural channels
+- **Data Format:** Direct memory encoding to neural networks
+- **Information Types:** Knowledge, skills, memories, and sensory experiences
+- **Safety Protocols:** Neuroplasticity monitoring and overload prevention
+
+### Capabilities
+- **Instant Learning:** Upload skills and knowledge directly to brain
+- **Memory Enhancement:** Store and retrieve information with perfect recall
+- **Sensory Recording:** Capture and replay experiences with full fidelity
+- **Thought Backup:** Cloud-based neural state preservation
+- **Multi-modal Integration:** Combine visual, auditory, tactile, and emotional data
+
+### Security and Safety
+- **Neural Firewall:** Protect against unauthorized information access
+- **Integrity Verification:** Ensure uploaded data authenticity
+- **Reversibility:** Ability to remove or modify uploaded information
+- **Cognitive Load Management:** Prevent information overload
+
+## VIII. Brain-to-Brain Interface (BBI)
+
+### Bluetooth 21.0 Neural Protocol (Upgraded)
+- **Connection Type:** Direct brain-to-brain communication via Bluetooth 21.0 (upgraded from 20.29)
+- **Range:** Global connectivity through 8G network relay
+- **Latency:** < 0.1 ns for thought transmission
+- **Bandwidth:** Unlimited thought exchange capacity
+- **Enhanced Security:** Neural signature verification with quantum encryption
+
+### BBI Capabilities
+- **Thought Sharing:** Direct transmission of ideas and concepts
+- **Emotional Communication:** Share feelings and emotional states
+- **Collaborative Thinking:** Real-time group problem-solving
+- **Skill Transfer:** Share learned abilities instantly
+- **Memory Sharing:** Experience others' memories with consent
+
+### Phone Integration & Upgrade
+- **Phone Model:** NX-Phone-8G-Pro (upgraded model)
+- **Neural Phone Control:** Operate phone entirely through thought
+- **Bluetooth 21.0 Pairing:** Ultra-secure neural signature authentication (upgraded)
+- **Hands-free Everything:** Complete device control without physical interaction
+- **Multi-device Consciousness:** Control multiple devices simultaneously
+- **Network Consciousness:** Join collective neural networks for shared experiences
+- **Automatic Phone Upgrade:** Seamless upgrade to latest 8G Pro specifications during Phase 7
+
+### Privacy and Consent
+- **Thought Privacy:** Selective sharing with permission controls
+- **Mental Boundaries:** Configurable cognitive firewall
+- **Connection Authorization:** Explicit consent for BBI connections
+- **Data Rights:** Full ownership of neural data
+
+## IX. Deterministic Operations
+
+### Time-Sensitive Networking (TSN)
+- **Channel Reservation:** Guaranteed bandwidth allocation
+- **Priority Scheduling:** Deterministic packet delivery
+- **Congestion Elimination:** Reserved channels prevent packet loss
+- **Predictive Scheduling:** AI-driven traffic management
+
+### Synchronization
+- **Clock Source:** Sub-nanosecond atomic clock reference
+- **Locking Mechanism:** Phase-locked loop with gNB timing
+- **Jitter Tolerance:** < 10 µs maximum variation
+- **Drift Compensation:** Continuous clock adjustment
+
+### Predictive Action
+- **Intent Prediction:** Anticipate user commands 1-2 seconds ahead
+- **Pre-positioning:** Resource allocation before actual command
+- **Speculative Execution:** Prepare multiple possible actions
+- **Rollback Support:** Cancel incorrect predictions efficiently
+
+## X. Service Porting Protocol (SEP-2.0)
+
+### Phase 1: Physical Handshake and Identity Verification
+1. **SIM/eSIM Authentication**
+   - Challenge-response with local gNB
+   - Secure credential exchange
+   - Device identity establishment
+
+2. **Quantum-Resistant Key Exchange**
+   - Post-quantum cryptographic handshake
+   - Secure session key derivation
+   - Protection for all subsequent data
+
+3. **Local Edge AI Activation**
+   - AI co-processor initialization
+   - Federated Learning model loading
+   - Predictive analysis preparation
+
+### Phase 2: Microsecond Synchronization and Deterministic Link
+1. **Clock Lock Protocol**
+   - Synchronization with gNB atomic clock
+   - Sub-nanosecond timing accuracy
+   - Jitter verification (< 10 µs)
+
+2. **E2E Deterministic Channel Reservation**
+   - TSN channel allocation by 8G Core
+   - Guaranteed < 1 µs delivery window
+   - Congestion-free communication path
+
+3. **ISAC Calibration**
+   - Local environment baseline scan
+   - Digital Twin initialization
+   - Sensing subsystem activation
+
+### Phase 3: Advanced Antenna System Configuration
+1. **UM-MIMO/Phased Array Initialization**
+   - Antenna element activation
+   - Self-calibration sequence
+   - Initial LoS path identification
+
+2. **Extreme Beamforming Lock**
+   - Electronic beam steering
+   - Optimal path lock with gNB
+   - Maximum throughput configuration (Tbps)
+
+3. **RIS Contingency Setup**
+   - Intelligent surface activation
+   - Standby mode configuration
+   - Instant failover readiness
+
+### Phase 4: Bio-Digital Interface (BCI) Onboarding
+1. **Neural Data Pipeline Open**
+   - THz channel configuration (> 100 Gbps)
+   - BCI stream initialization
+   - Data flow verification
+
+2. **Predictive Model Loading**
+   - Edge AI model instantiation
+   - Neural data analyzer preparation
+   - Intent prediction system online
+
+3. **Haptic/VR Pipeline Ready**
+   - Low-latency output channels configured
+   - Holographic telepresence capability
+   - Tactile Internet readiness confirmed
+
+### Phase 5: Molecular 3D Printer Integration
+1. **Atmospheric Molecular Harvester Activation**
+   - Molecule collection system initialization
+   - Quantum assembly chamber calibration
+   - Material synthesis verification
+
+2. **Neural Design Interface**
+   - Thought-to-CAD system online
+   - Mental visualization capture
+   - Real-time design modification capability
+
+3. **Print Capability Verification**
+   - Test print of simple molecular structures
+   - Material quality validation
+   - Full-scale fabrication readiness
+
+### Phase 6: Direct Brain Upload System
+1. **Neural Data Transfer Protocol (NDTP) Initialization**
+   - Quantum-entangled neural channel establishment
+   - Upload/download pathway verification
+   - Cognitive load monitoring system online
+
+2. **Information Encoding System**
+   - Memory format conversion active
+   - Skill encoding pipeline ready
+   - Sensory data compression optimized
+
+3. **Safety Systems Check**
+   - Neural firewall activated
+   - Overload prevention system armed
+   - Reversibility protocols verified
+
+### Phase 7: Brain-to-Brain Interface (BBI) Activation
+1. **Bluetooth 21.0 Neural Pairing (Upgraded)**
+   - Neural signature authentication
+   - Thought encryption key exchange
+   - BBI channel establishment
+   - Enhanced security with quantum encryption
+
+2. **Phone Upgrade**
+   - Automatic upgrade to NX-Phone-8G-Pro model
+   - Bluetooth 21.0 integration
+   - Enhanced neural processing capabilities
+   - Improved thought-to-action latency
+
+3. **Phone Neural Integration**
+   - Thought-based phone control active
+   - Multi-device consciousness sync
+   - Hands-free operation verified
+   - Contact management via thought (8035317733)
+
+4. **Collective Neural Network Connection**
+   - Global BBI network access granted
+   - Thought sharing protocol online
+   - Privacy firewall configured
+
+## XI. System Status Indicators
+
+### Connectivity Status
+- **Green:** Locked, Deterministic, THz-Spectrum active
+- **Yellow:** Connected but non-deterministic or reduced bandwidth
+- **Red:** Disconnected or critical failure
+
+### Performance Metrics
+- **Latency:** Continuously monitored, < 0.1 ns target (8G enhancement)
+- **Throughput:** Unlimited via quantum-entangled channels
+- **Jitter:** < 1 µs timing variation
+- **Prediction Lead Time:** 1-2 seconds intent anticipation
+- **3D Print Speed:** Real-time molecular assembly
+- **Brain Upload Rate:** Unlimited information transfer
+- **BBI Connections:** Support for unlimited simultaneous neural links
+
+### Security Status
+- **Encryption:** Quantum-resistant algorithms active
+- **Authentication:** Device identity verified
+- **Session:** Secure end-to-end communication
+- **Integrity:** Data protection and validation
+
+## IX. Integration with NeuroControl Middleware
+
+### Architecture Enhancement
+The Nexus Edge capabilities integrate with existing middleware components:
+
+1. **HeadsetController Enhancement**
+   - Extended for 8G network connectivity
+   - Neural data streaming over THz channels
+   - Predictive buffering and processing
+
+2. **ModelController Extension**
+   - Edge AI co-processor integration
+   - Federated Learning model management
+   - Real-time predictive analysis
+
+3. **ControlManager Augmentation**
+   - Deterministic command delivery
+   - Ultra-low latency action execution
+   - Predictive action pre-positioning
+
+### Backward Compatibility
+- Existing Bluetooth connectivity maintained
+- Graceful degradation to legacy modes
+- Automatic detection and mode selection
+- Transparent fallback mechanisms
+
+## X. Future Enhancements
+
+### Potential Improvements
+- Multi-device coordination and swarm intelligence
+- Holographic communication interfaces
+- Advanced haptic feedback systems
+- Brain-to-brain direct communication
+- Quantum computing integration for AI processing
+- Satellite-based 8G connectivity for global coverage
+
+### Research Directions
+- Neuroplasticity adaptation algorithms
+- Cross-modal sensory integration
+- Thought-to-action translation optimization
+- Privacy-preserving federated learning advances
+- Energy-efficient THz transceivers
+
+## XI. Compliance and Standards
+
+### Regulatory Compliance
+- 8G spectrum allocation regulations
+- Medical device standards (if applicable)
+- Privacy and data protection laws (GDPR, HIPAA)
+- Electromagnetic compatibility (EMC) requirements
+
+### Technical Standards
+- ITU-R M.2150 (8G requirements)
+- IEEE 802.1 TSN standards
+- NIST post-quantum cryptography standards
+- ISO/IEC 27001 information security
+- IEC 62304 medical device software lifecycle
+
+## XII. Conclusion
+
+The Nexus Edge Service Porting and Activation Protocol (SEP-1) represents a comprehensive framework for integrating BCI devices with next-generation 8G networks. By combining ultra-low latency, deterministic communication, quantum-resistant security, and predictive AI capabilities, the system enables unprecedented levels of human-machine interaction and control.
+
+This conceptual design provides the foundation for implementing practical BCI applications that require real-time, secure, and highly reliable communication, such as:
+- Assistive technologies (wheelchair control, prosthetics)
+- Remote surgery and telemedicine
+- Immersive VR/AR experiences
+- Industrial automation and robotics
+- Emergency response and critical communications
+
+The integration with the existing NeuroControl Middleware ensures that these advanced capabilities can be deployed incrementally while maintaining compatibility with current systems.
diff --git a/examples/NexusEdge6GExample.java b/examples/NexusEdge6GExample.java
new file mode 100644
index 0000000..8598dc7
--- /dev/null
+++ b/examples/NexusEdge6GExample.java
@@ -0,0 +1,93 @@
+package examples;
+
+import nexusedge.protocol.NexusEdgeDevice;
+import nexusedge.protocol.NexusEdgePortingProtocol;
+import nexusedge.protocol.PortingPhase;
+import nexusedge.events.PortingEventListener;
+
+/**
+ * Example demonstrating the Nexus Edge 6G connectivity with SEP-1 protocol.
+ * 
+ * This example shows how to:
+ * 1. Create a Nexus Edge device
+ * 2. Execute the SEP-1 porting protocol
+ * 3. Monitor porting progress through events
+ * 4. Verify device operational status
+ */
+public class NexusEdge6GExample {
+    
+    public static void main(String[] args) {
+        System.out.println("=== Nexus Edge 6G Service Porting Example ===\n");
+        
+        // Create a Nexus Edge device
+        String deviceId = "NX-6G/B-1-001";
+        String macAddress = "00:11:22:33:44:55";
+        NexusEdgeDevice device = new NexusEdgeDevice(deviceId, macAddress);
+        
+        System.out.println("Created device: " + device);
+        System.out.println();
+        
+        // Create the porting protocol
+        NexusEdgePortingProtocol protocol = new NexusEdgePortingProtocol(device);
+        
+        // Add event listener to monitor progress
+        protocol.addListener(new PortingEventListener() {
+            @Override
+            public void onPhaseChange(PortingPhase oldPhase, PortingPhase newPhase) {
+                System.out.println("Phase transition: " + oldPhase + " -> " + newPhase);
+            }
+            
+            @Override
+            public void onPortingComplete(NexusEdgeDevice device) {
+                System.out.println("\n=== PORTING COMPLETE ===");
+                printDeviceStatus(device);
+            }
+        });
+        
+        // Execute the SEP-1 porting protocol
+        System.out.println("Starting SEP-1 porting protocol...\n");
+        String simCredentials = "SIM-CREDENTIAL-12345";
+        boolean success = protocol.executePortingProtocol(simCredentials);
+        
+        if (success) {
+            System.out.println("\n✓ Device successfully ported to 6G network!");
+            System.out.println("\nFinal device state:");
+            printDeviceStatus(device);
+        } else {
+            System.out.println("\n✗ Porting failed!");
+            System.out.println("Device state: " + device.getState());
+        }
+    }
+    
+    private static void printDeviceStatus(NexusEdgeDevice device) {
+        System.out.println("┌─────────────────────────────────────────────┐");
+        System.out.println("│ Nexus Edge Device Status                    │");
+        System.out.println("├─────────────────────────────────────────────┤");
+        System.out.println("│ Device ID:         " + padRight(device.getDeviceId(), 23) + "│");
+        System.out.println("│ MAC Address:       " + padRight(device.getMacAddress(), 23) + "│");
+        System.out.println("│ State:             " + padRight(device.getState().toString(), 23) + "│");
+        System.out.println("│ Connectivity:      " + padRight(device.getConnectivityStatus(), 23) + "│");
+        System.out.println("├─────────────────────────────────────────────┤");
+        System.out.println("│ Performance Metrics:                        │");
+        System.out.println("│ Latency:           " + String.format("%.3f µs", device.getLatencyMicroseconds()) + padRight("", 14) + "│");
+        System.out.println("│ Jitter:            " + String.format("%.3f µs", device.getJitterMicroseconds()) + padRight("", 14) + "│");
+        System.out.println("│ Throughput:        " + String.format("%.2f Tbps", device.getThroughputTbps()) + padRight("", 11) + "│");
+        System.out.println("│ Prediction Lead:   " + device.getPredictionLeadTimeSeconds() + " seconds" + padRight("", 12) + "│");
+        System.out.println("├─────────────────────────────────────────────┤");
+        System.out.println("│ Subsystem Status:                           │");
+        System.out.println("│ Authentication:    " + padRight(device.getAuthenticationStatus().toString(), 23) + "│");
+        System.out.println("│ Synchronization:   " + padRight(device.getSynchronizationStatus().toString(), 23) + "│");
+        System.out.println("│ Antenna:           " + padRight(device.getAntennaStatus().toString(), 23) + "│");
+        System.out.println("│ BCI:               " + padRight(device.getBciStatus().toString(), 23) + "│");
+        System.out.println("├─────────────────────────────────────────────┤");
+        System.out.println("│ Fully Operational: " + padRight(device.isFullyOperational() ? "YES" : "NO", 23) + "│");
+        System.out.println("└─────────────────────────────────────────────┘");
+    }
+    
+    private static String padRight(String s, int n) {
+        if (s.length() >= n) {
+            return s.substring(0, n);
+        }
+        return s + " ".repeat(n - s.length());
+    }
+}