I gave a try and I can confirm that following the modemmanager docs to enable FCC unlock procedure at ModemManager level, the modem is properly unlocked and connects to the internet.
However, this is another issue, but the firmware crashing persist when trying to make use of the LTE connection a bit more than just sending a ping. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1949621 Title: modemmanager/libmbim cannot make use of Quectel EM120 Status in libmbim package in Ubuntu: Fix Released Status in modemmanager package in Ubuntu: Fix Released Bug description: As reported on https://gitlab.freedesktop.org/mobile- broadband/ModemManager/-/issues/402, this modem (shipped in many new Lenovo ThinkPad laptops) requires some specific handling as others new modems to performs FCC unlock procedure. A fix has been merged upstream: https://gitlab.freedesktop.org/mobile- broadband/libmbim/-/merge_requests/125/diffs Can we expect to see that merged in the current Ubuntu 21.10 ? I understand it might require a backport, since they merged it against 1.26 and it does not seems to apply cleanly on 1.24. I also suspect upgrading libmbim to 1.26 is not acceptable for impish release. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libmbim/+bug/1949621/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

