FCC authentication with QMI over MBIM; try 1 -- Logs

Bjørn Mork bjorn at mork.no
Wed Jun 29 16:11:21 UTC 2016

Aleksander Morgado <aleksander at aleksander.es> writes:

> On Wed, Jun 29, 2016 at 2:18 PM, Aleksander Morgado
> <aleksander at aleksander.es> wrote:
>> On Wed, Jun 29, 2016 at 12:43 PM, Thomas Gouverneur <thomas at espix.net> wrote:
>>> Any news on this? Is there something else I can do to help?
>> I'm waiting on the EM7455 I ordered; should be here today or tomorrow.
>> Another option would be if any of you could setup the laptop with an
>> ethernet connection and SSH access so that we can remotely debug the
>> issue ourselves. If any of you is up to this, send me a private email.
> I got the new EM7455 here and I got the issue reproduced. We do send
> FCC auth command using qmi-over-mbim, and that seems to work nice,
> still no traffic flows once connected.
> I'll try to sync with Bjørn to see if he can help checking the issue remotely

That's great!  Reproducible problems are the best ones.  If I only knew
where to start looking.  Hmm, wait.  Didn't I have similar problems too?

I got so into the habit of separating the pin verify and connect
operations that forgot completely about that.  But the issue sounds
similar.  Maybe it is a timing issue of some sort, which applies on any
type of radio unlocking?

Can you repeat the issue if you send the FCC auth command manually
before enabling and connecting the modem? 


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