07-31-2021, 04:07 PM
the firmware would be the very last thing you would do, did you try the "Register" command ? those commands should be tested first, after you register you can try other commands, since you use ofono and the SIM has no PIN just give `ofonoctl online`, it should do the job, this problem must be assessed, the next step would be to try AT commands, it is crucial to test another OS to be sure you don't have a hardware issue