I am using Android for VIM4
and about my Machine i am using Ubuntu 18.04.6 LTS for serial debugging
Serial debugging is not working for me. As per suggested i am using 921600 Baud rate for VIM4 board
Please refer the below link which i am following for serial debugging :-
screen /dev/ttyUSB0 921600, and check pin connection before
i have tried this one also…still not working
Please make sure the hardware connection is correct, and you can also try to swap the TX & RX signal.