Modem stopped working out of the blue

Martin debacle at
Tue Jul 18 21:10:51 UTC 2023


my modem used to work until recently, but suddenly (and without any
software update, at least intentionally), I get:

$ sudo mmcli --modem=0 --messaging-list-sms
error: modem not enabled yet
$ sudo mmcli --modem=0 --enable
error: couldn't enable the modem:
Couldn't register for power indications: QMI protocol error (17):

Software versions are:

libmbim-glib4 1.28.0-1~bpo11+1
libmbim-proxy 1.28.0-1~bpo11+1
libmbim-utils 1.28.0-1~bpo11+1
libmm-glib0   1.20.0-1~bpo11+1
libqmi-glib5  1.32.0-1~bpo11+1
libqmi-proxy  1.32.0-1~bpo11+1
libqmi-utils  1.32.0-1~bpo11+1
modemmanager  1.20.0-1~bpo11+1

Status says: "lock: sim-pin2".

Any idea, what might be wrong?


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