FCC authentication with QMI over MBIM; try 1

Aleksander Morgado aleksander at aleksander.es
Fri Jun 10 21:31:21 UTC 2016

On Fri, Jun 10, 2016 at 11:57 AM, Bjørn Mork <bjorn at mork.no> wrote:
>> On a unrelated note: my 4G signal is rather poor. Mobile phone
>> typically flips back and forth between 2g and 3g. I have the feeling
>> that the Sierra modem does not really fall back to 2g. The connection
>> is established very fast and reproducible, I do get IP address
>> assigned, but it seems that I'm only sending out packets but don't
>> receive anything.
>> Changing to outdoors changed behaviour that I get traffic in both directions.
>> Is there a way check if degradation to 3g or 2g is properly working?
> I'll let Aleksander answer that, since I'm not really sure...

Well... we could try QMI commands to set preferred mode with
QMI-over-MBIM, now that we're at it...

> Just wanted to note that the EM7455 doesn't support 2g at all.  It is
> 3g/lte only.



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