Em7430 no com port after vid:pid change

[jyijyi]

Can you paste your modified qcserial.c here?
Does it work for adding new pid in option driver?

Rescue MC7455 after incorrect PID change?

This should be easy to fix on Raspbian provided it has a USB serial driver we can use. Try option first: modprobe option echo 1199 90xx > /sys/bus/usb-serial/drivers/option1/new_id You’ll have to replace the “1199 90xx” with the modems current PID and VID. If that works, then youl’ll have a number of ttyUSBx devices and just have to try which one is the AT serial function. I assume you know how to go from there since you’ve already changed the PID. If you got a write error, then your Rasp…