MC7710 "forgetting" RAT
Martin.Anderseck at ni.com
Wed Feb 5 07:58:17 PST 2014
Just for the records: Now I got the invalid output of selrat again but at
the same time this:
[/dev/cdc-wdm0] Successfully got system selection preference
Emergency mode: 'no'
Mode preference: 'gsm, umts, lte'
Band preference: 'gsm-dcs-1800, gsm-900-extended, gsm-900-primary,
gsm-pcs-1900, wcdma-2100, wcdma-2600, wcdma-900, wcdma-1700-japan, bc-16,
bc-17, bc-18, bc-19'
LTE band preference: '1, 3, 7, 8, 20'
Roaming preference: 'any'
Network selection preference: 'automatic'
Service domain preference: 'cs-ps'
Service selection preference: 'automatic'
However by using qmicli to set the system selection preference I could
change the value of selrat back to 7 again.
I will keep you updated in case I find out anything that leads to a
solution of this mysterious issue but I won't continue spamming you with
always new perspectives of the same problem unless you ask me to do so ;-)
modemmanager-devel-bounces at lists.freedesktop.org wrote on 05.02.2014
> Thank you also for this explanation. I've checked this while the RAT was
> valid and I got an output as yours. In the meantime I have also updated
> libqmi to 1.8.0 and ModemManager to 1.2.0. In this new setup I didn't
> the wrong RAT yet but the first simple-connect attempt often ends in
> protocol error (79): 'PolicyMismatch'. I need to reset the modem but
> afterwards everything works without any problem.
> Unfortunately I cannot say that this problem is limited to my single
> MC7710. We use some of these modems in a project where partners make
> first steps with them currently and I got that feedback twice already.
> from all your statements it sounds like there's something strange going
> in the modem and rather not in ModemManager.
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