request for using X55 with Carbon X1 Gen9 under debian bookworm

[Bjørn Mork]

"Becker, Jochen" <jochen.becker at tu-darmstadt.de> writes:

> Version T99W175 F0 1 0 0 9 DT 003 075
..
> Invalid transition

This is a Thinkpad with original modem? If so, I believe that firmware
version uses the "new" FCC unlock method.  Which means that it requires
a very recent unlock script:

https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/commit/ac06052b97cc02e60ae1ed7a551727b3c14d6a22

And that script depends on this change in libqmi:
https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/commit/d63110fa1ea914c894c466bb1a3db5513255cf39

Either build the new libqmi + modemmanager from git main yourself
(assuming you can get away with libmbim and other dependencies from
Debian - or you'll need to build those as well). Or simply wait for new
versions to be released and packaged in Debian. Which probably will take
a few weeks, if I were to guess.

Yes, this isn't easy.  But at least the support *is* coming to Debian in
the near future.  That's not too bad for pretty new hardware with
firmware surprises like the FCC unlock change.


Bjørn