"parameter is invalid, please check!" message during uboot flushing

[olkur]

Hi there,

I am trying to flash luckfox pico plus using the following command but getting an error:

$sudo upgrade_tool di -uboot .../luckfox-pico/output/image/uboot.img
Using .../luckfox-pico/tools/linux/Linux_Upgrade_Tool/config.ini
parameter is invalid,please check!

Could someone provide me any pointers?