Hey Dominik,
> I am currently trying to unlock my *Quectel* *RM520N-GL* on *Linux Debian* > with the *ModemManager* (Version *1.20.4*). > > > > *mmcli -i any --pin=<SIMPIN>* > > *>> error: couldn't send PIN code to the SIM: 'Timeout was reached'* > > > > Runs into a *timeout* and still manages to unlock the SIM-Card. > Afterwards the state changes from “locked” to “registered”. > > > Please run MM with debug logs (use "mmcli -G DEBUG" or follow https://modemmanager.org/docs/modemmanager/debugging/), as that will give us much more information about the specific sequence in place here. -- Aleksander
