Lenovo T99W175 / Foxconn SDX55 update on LVFS breaks FCC unlock
thilo at ginkel.com
Wed Apr 27 10:52:36 UTC 2022
Lenovo just published a new firmware for the T99W175 / Foxconn SDX55
5G modem on LVFS  that effectively soft-bricks the modem under
Linux as the FCC unlock no longer works.
I can boot up Windows and downgrade the firmware, but would be
interested in a more permanent fix.
What would be needed to figure out the new unlock procedure? Any hints
are much appreciated!
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