MC7710 with PID 9205, doesn't receive AT commands

[dl5162]

@tuxor1337

# modprobe qmi_wwan
# echo "1199 9205" | sudo tee /sys/bus/usb/drivers/qmi_wwan/new_id
1199 9205
# modprobe qcserial
# echo "1199 9205" | sudo tee /sys/bus/usb-serial/drivers/qcserial/new_id
1199 9205

Try reversing that. Your problem is that qmi_wwan binds to every interface which could possibly be RMNET/QMI. It doesn’t know which one is the correct one when you .use new_id. So it blocks qcserial from binding to interface #3, which is the AT command interface.

Once you have AT command access you should probably change to a supported PID, unless there is a specific reason this module is using 9205.