diff --git a/# Press Enter to accept default file location and no passphrase (or set one if you prefer) b/# Press Enter to accept default file location and no passphrase (or set one if you prefer)
new file mode 100644
index 0000000..6f2ec56
--- /dev/null
+++ b/# Press Enter to accept default file location and no passphrase (or set one if you prefer)	
@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACDJKZpAbP0hRr9rYvHlEuooUCy/gLflO8FFf2cvpRX9/QAAAKBveJFgb3iR
+YAAAAAtzc2gtZWQyNTUxOQAAACDJKZpAbP0hRr9rYvHlEuooUCy/gLflO8FFf2cvpRX9/Q
+AAAECQsyTRnkj+LTLq0yris1aL46wib81+M8Ucc3b2o8am18kpmkBs/SFGv2ti8eUS6ihQ
+LL+At+U7wUV/Zy+lFf39AAAAF2RvYW5iYW5nZHV5ODZAZ21haWwuY29tAQIDBAUG
+-----END OPENSSH PRIVATE KEY-----
diff --git a/# Press Enter to accept default file location and no passphrase (or set one if you prefer).pub b/# Press Enter to accept default file location and no passphrase (or set one if you prefer).pub
new file mode 100644
index 0000000..b8cb2ce
--- /dev/null
+++ b/# Press Enter to accept default file location and no passphrase (or set one if you prefer).pub	
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMkpmkBs/SFGv2ti8eUS6ihQLL+At+U7wUV/Zy+lFf39 doanbangduy86@gmail.com
diff --git a/scripts/check_modem.sh b/scripts/check_modem.sh
new file mode 100755
index 0000000..c8740f6
--- /dev/null
+++ b/scripts/check_modem.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+echo "Detecting modem..."
+lsusb
+echo "Checking modem status..."
+mmcli -m 0
diff --git a/scripts/main.sh b/scripts/main.sh
new file mode 100755
index 0000000..caebecf
--- /dev/null
+++ b/scripts/main.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+echo "Welcome to 5G Modem Support Tool"
+echo "1. Check modem status"
+echo "2. Connect to network"
+echo "3. Exit"
+read -p "Choose an option: " choice
+
+case $choice in
+  1) bash scripts/check_modem.sh ;;
+  2) bash examples/example_connect.sh ;;
+  3) echo "Goodbye!" ; exit 0 ;;
+  *) echo "Invalid option" ;;
+esac