MC7421 QmiDevice: Transaction timed out

[jyijyi]

I have never used openwrt, but you can have a look on here:

Updating EM7565 on openwrt

hey @LateParrot the debug logs is good, but I’m afraid it doesn’t tell much Your log shows how when you open the ttyUSB0, there is no data received in the program, and that’s a problem. The way the protocol detection works in qmi-firmware-update is quite simple, it just opens the TTY and waits for the “hello request” sent by the modem, there is no data sent by the program beforehand, it just waits for the modem to speak first (this is done on purpose, if anything is sent to the ttyUSB0 …