'SIM is Missing'

[david wen riccardi-zhu]

I am trying to get WWAN working on a Thinkpad X270. ModemManager 
seems to be reporting that the SIM card is missing. The card is, 
in fact, in the modem, and it has been activated. However, it is 
using a nano-to-micro adapter.

This is the output of ModemManager logs:
Jun 24 12:47:53 x270 systemd[1]: Starting Modem Manager...
Jun 24 12:47:53 x270 ModemManager[13829]: <info>  ModemManager 
(version 1.8.0) starting in system bus...
Jun 24 12:47:53 x270 systemd[1]: Started Modem Manager.
Jun 24 12:47:54 x270 ModemManager[13829]: opening device...
Jun 24 12:47:54 x270 ModemManager[13829]: cannot connect to proxy: 
Could not connect: Connection refused
Jun 24 12:47:54 x270 ModemManager[13829]: spawning new mbim-proxy 
(try 1)...
Jun 24 12:47:55 x270 ModemManager[13829]: [/dev/cdc-wdm0] Read max 
control message size from descriptors file: 4096
Jun 24 12:47:55 x270 ModemManager[13829]: <info>  Couldn't check 
support for device
'/sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0': not supported 
by any plugin
Jun 24 12:47:55 x270 ModemManager[13829]: <info>  Couldn't check 
support for device
'/sys/devices/pci0000:00/0000:00:1f.6': not supported by any 
plugin
Jun 24 12:47:58 x270 ModemManager[13829]: [/dev/cdc-wdm0] channel 
destroyed
Jun 24 12:47:58 x270 ModemManager[13829]: <info>  [device 
/sys/devices/pci0000:00/0000:00:14.0/usb1/1-3] creating modem with 
plugin 'Sierra' and '2' ports
Jun 24 12:47:58 x270 ModemManager[13829]: <info>  Modem for device 
'/sys/devices/pci0000:00/0000:00:14.0/usb1/1-3'
successfully created
Jun 24 12:47:58 x270 ModemManager[13829]: opening device...
Jun 24 12:47:58 x270 ModemManager[13829]: [/dev/cdc-wdm0] Read max 
control message size from descriptors file: 4096
Jun 24 12:48:08 x270 ModemManager[13829]: <info>  Modem: state 
changed (unknown -> failed)
Jun 24 12:48:08 x270 ModemManager[13829]: <warn>  Modem couldn't 
be initialized: Couldn't check unlock status: SIM not inserted
Jun 24 12:48:08 x270 ModemManager[13829]: <warn>  Couldn't open 
ports during Modem SIM hot swap enabling: Couldn't get primary 
port
Jun 24 12:48:08 x270 ModemManager[13829]: <error> SIM is missing 
and SIM hot swap is configured, but ports are not opened. 

While this is the output of mmcli -m:
/org/freedesktop/ModemManager1/Modem/0 (device id 
'612aa9dd3091dbe5f97ba96abe91d63d500bb244')
Hardware |   manufacturer: 'Sierra Wireless, Incorporated'
         |          model: 'MBIM [1199:9079]'
         |       revision: 'SWI9X30C_02.24.03.00'
         |   H/W revision: 'EM7455'
         |      supported: 'gsm-umts, lte'
         |        current: 'gsm-umts, lte'
         |   equipment id: '015105004053138'
-------------------------
System   |         device: 
'/sys/devices/pci0000:00/0000:00:14.0/usb1/1-3'
         |        drivers: 'cdc_mbim'
         |         plugin: 'Sierra'
         |   primary port: 'cdc-wdm0'
         |          ports: 'cdc-wdm0 (mbim), wwp0s20f0u3i12 (net)'
-------------------------
Numbers  |           own : 'unknown'
-------------------------
Status   |           lock: 'unknown'
         | unlock retries: 'unknown'
         |          state: 'failed'
         |  failed reason: 'sim-missing'
         |    power state: 'low'
         |    access tech: 'unknown'
         | signal quality: '0' (cached)
-------------------------
Modes    |      supported: 'allowed: 3g, 4g; preferred: none'
         |        current: 'allowed: any; preferred: none'
-------------------------
Bands    |      supported: 'unknown'
         |        current: 'unknown'
-------------------------
IP       |      supported: 'ipv4, ipv6, ipv4v6'
-------------------------
SIM      |           path: 'none'
 -------------------------
Bearers  |          paths: 'none'

Any insights? Is it clear from this output that the modem is not 
detecting the SIM card? Or is it possible that I have not properly 
configured ModemManager?

Many thanks for your time,
David
--
dwrz|朱为文