Hi there, Lenovo just published a new firmware for the T99W175 / Foxconn SDX55 5G modem on LVFS [1] 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! Thanks, Thilo [1] https://fwupd.org/lvfs/devices/com.lenovo.t99w175.firmware [2] https://modemmanager.org/docs/modemmanager/fcc-unlock/#fcc-unlock-procedures-in-modemmanager--1184-1
