Re: Qualcomm Gobi 2000 Modem Issues

[Marcel Holtmann <marcel@holtmann.org>]

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Hi Kai,

> I ran into two issues trying to setup a data connection with a Gobi 2000 card.
> The first one seems to be an error regarding simcard onlocking. After
> enabling the modem test/list-modems shows the following, despite the
> simcard is inserted correctly:
> 
> [ /gobi0 ]
>     Features = sim
>     Emergency = 0
>     Powered = 1
>     Lockdown = 0
>     Interfaces = org.ofono.SimManager
>     Online = 0
>     Model = Qualcomm Gobi 2000
>     Revision = D1025-STUTABGD-3600  1  [Jan 14 2010 14:00:00]
>     Serial = 353093033460401
>     Manufacturer = Qualcomm Incorporated
>     [ org.ofono.SimManager ]
>         Present = 0
> 
> Our current workaround is quitting ofono and using minicom to unlock
> the sim directly, then restarting ofono.
> > at+cpin?
> +CPIN: SIM PIN
> OK
> 
> > at+cpin="1234"
> OK
> $QCSIMSTAT: 1 SIM INIT COMPLETED

this is weird since the PIN unlocking should just work fine. Have you
tried to use the test/enter-pin script?

> The second issue is not being able to activate an internet context:
> (Network registration and attachment is alright)
> 
> test/enable-modem
> Connecting modem /gobi0...
> test/online-modem
> Setting modem /gobi0 online...
> test/list-contexts
> [ /gobi0 ]
>     [ /gobi0/context1 ]
>         Username =
>         Protocol = ip
>         Name = Internet
>         Settings = { }
>         IPv6.Settings = { }
>         Active = 0
>         AccessPointName = internet.t-mobile
>         Password =
>         Type = internet
> 
> test/activate-context
> Error activating /gobi0/context1: org.ofono.Error.NotImplemented:
> Implementation not provided
> 
> If you could give me a little assisting on where to look, maybe I
> would be able to contribute patches, too.

Of course this does not work. Check doc/hardware-support.txt for
supported modem and supported capabilities.

Until Qualcomm gives us the chance to implement QMI properly, we are a
bit out of luck with just one AT command channel. You need at least two
AT command channel to run oFono properly.

Regards

Marcel