Contact quectel to get info about modem updates (hopefully less crashes)
We currently use EC20 modems to do GPRS testing under osmo-gsm-tester. It is known that those modems crash from time to time (dmesg shows device re-registering in kernel).
Let's try to do some quick investigation on what's needed to update the firmware on those modems, to get latest bugfixes and hopefully get less crashes (and thus more stable test results).
We should contact Quectel support regarding availability and procedure to flash new firmware, and ask them about required possibility to downgrade to known versions of the firmware if needed.