Trying (failing) to get my modem to work

Wouter Verhelst w at
Fri Mar 27 12:17:58 PDT 2015

Hi folks,

I have a new laptop, which comes with a 4G modem. To my dismay, this
thing doesn't have an AT port anymore, so I can't do what I used to do
on the old laptop (i.e., send some AT command magic to /dev/ACM0 and run

After looking around a bit, I found that mbimcli manages to find the
modem and can do a few things. But not much.

Script started on vr 27 mrt 2015 20:14:12 CET
root at gangtai:~# mbimcli -d /dev/cdc-wdm0 --query-device-caps
[/dev/cdc-wdm0] Device capabilities retrieved:
	      Device type: 'embedded'
	   Cellular class: 'gsm'
	      Voice class: 'no-voice'
	        Sim class: 'removable'
	       Data class: 'gprs, edge, umts, hsdpa, hsupa, lte'
	         SMS caps: 'pdu-receive, pdu-send'
	        Ctrl caps: 'reg-manual, multi-carrier'
	     Max sessions: '8'
	Custom data class: 'unknown'
	        Device ID: '353516051359501'
	    Firmware info: 'SWI9X15C_05.05'
	    Hardware info: 'EM7305'
root at gangtai:~# mbim-network /dev/cdc-wdm0 start
Loading profile...
Loading previous state...
    Previous Transaction ID: 6
error: no actions specified
Clearing state...
Querying subscriber ready status 'mbimcli -d /dev/cdc-wdm0 --query-subscriber-ready-status --no-close'...
[/dev/cdc-wdm0] Subscriber ready status retrieved: Ready state: 'initialized' Subscriber ID: '206201002118395' SIM ICCID: '8932030000007170020' Ready info: 'unknown' Telephone numbers: (1) '0489402389' [/dev/cdc-wdm0] Session not closed: TRID: '3'
Saving state... (TRID: 3)
Querying registration state 'mbimcli -d /dev/cdc-wdm0 --query-registration-state --no-open=3 --no-close'...
[/dev/cdc-wdm0] Registration status: Network error: 'unknown' Register state: 'home' Register mode: 'automatic' Available data classes: 'lte' Current cellular class: 'gsm' Provider ID: '20620' Provider name: 'BASE' Roaming text: 'unknown' Registration flags: 'packet-service-automatic-attach' [/dev/cdc-wdm0] Session not closed: TRID: '4'
Saving state... (TRID: 4)
Attaching to packet service with 'mbimcli -d /dev/cdc-wdm0 --attach-packet-service --no-open=4 --no-close'...
Saving state... (TRID: 5)
Starting network with 'mbimcli -d /dev/cdc-wdm0 --no-open=5 --no-close'...
error: operation failed: Transaction timed out
Network start failed
[/dev/cdc-wdm0] Session not closed: TRID: '6'
Saving state... (TRID: 6)
root at gangtai:~# exit

Script done on vr 27 mrt 2015 20:14:49 CET

...not sure what's going wrong here. Help?

It is easy to love a country that is famous for chocolate and beer

  -- Barack Obama, speaking in Brussels, Belgium, 2014-03-26

More information about the libmbim-devel mailing list