Re: Sierra Wireless 330u modem does not register

["Shawn J. Goff" <shawn7400 gmail com>]

On 02/18/2013 03:15 AM, Aleksander Morgado wrote:
> > I have an ARM device that I'm trying to make use a Sierra Wireless 330U
> > to connect to Bell Canada. I'm working on getting ModemManager on the
> > device, but I'm fighting cross-compilation issues.
> >
> > Until then, I'm trying to connect it manually and I'm having trouble.
> >
> > First, when putting the modem in a Windows laptop or a Cradlepoint
> > device, it registers and connects almost immediately, so the SIM is fine
> > and it's in a serviceable area. Also, this device works with other
> > modems, including the very similar Sierra Wireless 313U, so the USB port
> > is fine.
> > The modem is not registering with the network. +CEREG? gives 0,2 (or I
> > can set CEREG=2 to get notifications, and it gives me 2,2). +CREG and
> > +CGREG also give me a 2.
> > +CFUN is 1. Setting it to 0 and back to 1 doesn't cause it to register.
> > +CPIN? returns "+CPIN: READY", which (I believe) means it doesn't need a
> > PIN for the SIM.
> > The APN is setup as either pda.bell.ca or inet.bell.ca (I'm trying both)
> > using +CGDCONT in context id 1; there is no username or password needed.
> > (although I don't think this stuff matters - it should register anyway)
> > Attempting to attach to the packet service using AT+CGATT=1 just hangs
> > for a while before returning OK.
> First: do you have your antenna connected? :)
>
> Second: Maybe try to tell the modem to connect to the home network? If
> using minicom to talk to the modem directly, use:
>    AT+COPS=0
> if using MM git master with mmcli you can use:
>    $> mmcli -m # --3gpp-register-home
It shouldn't need an external antenna if it connects with no problem on 
the laptop.

+COPS=0 returns OK and it still never registers.
+COPS=? gives back just a list of forbidden operators as follows; I 
don't see any available operators.
+COPS: 
(3,"AT&T","AT&T","310410",2),(3,"AT&T","AT&T","310410",0),(3,"T-Mobile","TMO","31026",0),(3,"T-Mobile","T-Mobile","310260",2),,(0,1,2,3,4),(0,1,2)