qmicli: NAS set technology preference

[Aleksander Morgado]

>> Somehow at the second try it had effect. Sometimes it needs patience,
>> but I don't know, when patience is for nothing.
>>
>> Also (killing modemmanager), using qmicli, starting/using
>> modemmanager/mmclie again. This is not so nice at the moment.
>>
>> Of course the reason can be everywhere.  (at first in front of my computer)
>>
>> I know, qmicli could establish connections too, but mm is recommended.
> 
> If anyone is really interested, I would ask for both ModemManager and
> qmicli debug logs when trying to set the same technologies, e.g. WCDMA only.
> 
> Also, when using qmicli only, how about seting 'low-power' operating
> mode and then 'online' again just after having set technology
> preference? Does that make it work reliably?
> 

Forgot to say; there is also "System Selection Preference" in addition
to "Technology Preference"; one of them is newer than the other, so if
TP doesn't work, SSP may still work. MM tries both IIRC.

That also reminds me my tries to get my Pantech UML290 in 3GPP mode; I
never got it working properly: neither with MM's uml290mode (which uses
kind of SSP via QCDM), nor with TP or SSP using QMI... But that was
possibly due to an old firmware, as Dan can switch his UML290 nicely.

-- 
Aleksander