How to make --nas-set-system-selection-preference='umts|lte' persistent ?

[Gopakumar Choorakkot Edakkunni]

All,

So I wanted to disable my modem from trying to connect to 2G because I saw
some threads that says that Sierra modem firmware conks at times when they
try to connect to 2G. I have a Sierra AC314U modem.

So I said qmicli -d /dev/cdc-wdm0
--nas-set-system-selection-preference='umts|lte' - basically saying that
use only 3G and LTE. After that point the modem goes back to "Ready to
connect" state.

Now I try using - qmicli -d /dev/cdc-wdm0 --wds-start-network=broadband
--client-no-release-cid to initiate the connection (which is what I usually
use to connect and it works). But after that point the modem refuses to
connect even though the --nas-get-system-info option shows available 3G/LTE
networks.


So I suspected that its because the nas-set-system-selection-preference
says that a modem reset is needed, and I did not reset the modem. So I
forced a reset using the below pair of commands, but after the  reset the
umts|lte selection I made is thrown out and its back to gsm|umts
lte. So thats a chicken and egg problem.


qmicli -d /dev/cdc-wdm0 --dms-set-operating-mode=offline
qmicli -d /dev/cdc-wdm0 --dms-set-operating-mode=reset

So my question is: If the
"--nas-set-system-selection-preference='umts|lte'" needs a reset and the
setting is wiped out after a reset, how exactly do I do that ? Any guidance
will be appreciated!

Rgds,
Gopa.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/libqmi-devel/attachments/20141103/ade14a89/attachment.html>