Ericsson F5521gw hayes command set and descriptions ?

[Maciej Milewski]

On 06.09.2011 12:14, Kurt Jaeger wrote:
> It presents three ports:
>
> umodem0:<F5521gw Mobile Broadband Modem>  on usbus1
> umodem0: data interface 2, has CM over data, has break
> umodem1:<F5521gw Mobile Broadband Data Modem>  on usbus1
> umodem1: data interface 4, has CM over data, has break
> umodem2:<F5521gw Mobile Broadband GPS Port>  on usbus1
> umodem2: data interface 10, has CM over data, has break
>
> I tried this on all of them:
>
> AT+CPIN=nnnn
> ERROR

The link [1] mentions something about using USB Ethernet instead of USB 
Serial with this device. Can you try unloading umodem and loading if_cdce?
That's my last idea in this subject I think. Insecure solution would be 
removing PIN from the SIM but it'll tell you if the modem even can 
connect to the network.

1. https://bugzilla.gnome.org/show_bug.cgi?id=650740#c15

Maciek