SIM PIN unlock timeout

Tue Nov 5 14:54:40 UTC 2024

Good afternoon,

I am currently trying to unlock my Quectel RM520N-GL on Linux Debian with the ModemManager (Version 1.20.4).

mmcli -i any --pin=<SIMPIN>
>> error: couldn't send PIN code to the SIM: 'Timeout was reached'

Runs into a timeout and still manages to unlock the SIM-Card. Afterwards the state changes from "locked" to "registered".

For debugging, I did grep the journal:

systemd[1]: Starting ModemManager.service - Modem Manager...
ModemManager[4418]: <info>  ModemManager (version 1.20.4) starting in system bus...
systemd[1]: Started ModemManager.service - Modem Manager.
ModemManager[4418]: <info>  [base-manager] couldn't check support for device '/sys/devices/platform/soc at 0/30800000.bus/30be0000.ethernet': not supported by any plugin
ModemManager[4418]: <info>  [base-manager] couldn't check support for device '/sys/devices/platform/soc at 0/33800000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0': not supported by any pl>
ModemManager[4418]: <info>  [device /sys/devices/platform/soc at 0/32c00000.bus/32e50000.usb/ci_hdrc.1/usb2/2-1/2-1.2<mailto:/sys/devices/platform/soc at 0/32c00000.bus/32e50000.usb/ci_hdrc.1/usb2/2-1/2-1.2>] creating modem with plugin 'quectel' and '6' ports
ModemManager[4418]: <warn>  [plugin/quectel] could not grab port ttyUSB2: Cannot add port 'tty/ttyUSB2', unhandled port type
ModemManager[4418]: <warn>  [plugin/quectel] could not grab port ttyUSB1: Cannot add port 'tty/ttyUSB1', unhandled port type
ModemManager[4418]: <warn>  [plugin/quectel] could not grab port ttyUSB0: Cannot add port 'tty/ttyUSB0', unhandled port type
ModemManager[4418]: <info>  [base-manager] modem for device '/sys/devices/platform/soc at 0/32c00000.bus/32e50000.usb/ci_hdrc.1/usb2/2-1/2-1.2' successfully created
ModemManager[4418]: <info>  [modem0] state changed (unknown -> locked)
ModemManager[4418]: <warn>  [modem0/sim0] couldn't load IMSI: Couldn't read data from UIM: QMI protocol error (82): 'AccessDenied'
ModemManager[4418]: <warn>  [modem0/sim0] couldn't load operator identifier: Couldn't get home network: QMI protocol error (37): 'UimUninitialized'
ModemManager[4418]: <warn>  [modem0/sim0] couldn't load operator name: Couldn't get home network: QMI protocol error (37): 'UimUninitialized'
ModemManager[4418]: <warn>  [modem0/sim0] couldn't load list of emergency numbers: Failed to parse CRSM query result '+CRSM: 148,8,""'
ModemManager[4418]: <warn>  [modem0/sim0] couldn't load list of preferred networks: Couldn't get preferred networks: QMI protocol error (37): 'UimUninitialized'
ModemManager[4418]: <warn>  [modem0/sim0] couldn't load GID1: Couldn't read data from UIM: QMI protocol error (82): 'AccessDenied'
ModemManager[4418]: <warn>  [modem0/sim0] couldn't load GID2: Couldn't read data from UIM: QMI protocol error (82): 'AccessDenied'
ModemManager[4418]: <warn>  [modem0] couldn't load list of own numbers: Couldn't get MSISDN: QMI protocol error (37): 'UimUninitialized'
ModemManager[4418]: <warn>  [modem0] error initializing: Modem is currently locked, cannot fully initialize
ModemManager[4418]: <info>  [modem0] SIM imsi has changed: <none> -> ***************
ModemManager[4418]: <info>  [device /sys/devices/platform/soc at 0/32c00000.bus/32e50000.usb/ci_hdrc.1/usb2/2-1/2-1.2<mailto:/sys/devices/platform/soc at 0/32c00000.bus/32e50000.usb/ci_hdrc.1/usb2/2-1/2-1.2>] creating modem with plugin 'quectel' and '6' ports
ModemManager[4418]: <warn>  [plugin/quectel] could not grab port ttyUSB2: Cannot add port 'tty/ttyUSB2', unhandled port type
ModemManager[4418]: <warn>  [plugin/quectel] could not grab port ttyUSB1: Cannot add port 'tty/ttyUSB1', unhandled port type
ModemManager[4418]: <warn>  [plugin/quectel] could not grab port ttyUSB0: Cannot add port 'tty/ttyUSB0', unhandled port type
ModemManager[4418]: <warn>  [modem1/sim1] couldn't load list of emergency numbers: Failed to parse CRSM query result '+CRSM: 148,8,""'
ModemManager[4418]: <warn>  [modem1] couldn't load supported assistance data types: Failed to receive indication with the predicted orbits data source
ModemManager[4418]: <info>  [modem1] state changed (unknown -> disabled)
ModemManager[4418]: <info>  [modem1] state changed (disabled -> enabling)
ModemManager[4418]: <info>  [modem1] power state updated: on
ModemManager[4418]: <info>  [modem1] state changed (enabling -> enabled)
ModemManager[4418]: <info>  [modem1] 3GPP registration state changed (unknown -> registering)
ModemManager[4418]: <info>  [modem1] 3GPP registration state changed (registering -> home)
ModemManager[4418]: <info>  [modem1] state changed (enabled -> registered)
ModemManager[4418]: <warn>  [modem0] couldn't load unlock retries: Couldn't peek QMI port

I did also follow the serial communication on /dev/ttyUSB2 Port:

+CPIN: READY
+QUSIM: 1
+QIND: SMS DONE
+QIND: PB DONE

Does someone know the cause of this behavior and how to fix it?
It seems to be happening almost every time.

BR
Dominik

Dominik Nille
Technology
Innovation Management

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