Question

IS IT POSSIBLE TO FORCE THE CONNECTION IN 3G OR 4G WITH THE TRB140 MODEL? THANKS

Answer 1

Hello,

Currently you can achieve with via SSH/CLI with following command:

- gsmctl -A 'at+qcfg="nwscanmode",3,1'

Where 3 it means what connection to use:

0 – auto;
1 – GSM only;
2 – WCDMA only;
3 – LTE only;
4 – TD-SCDMA only;
5 – UMTS only;
6 – CDMA only;
7 – HRD only;
8 – CDMA and HRD only.

Where 1 when to take effect/changes:

0 – take effect after UE reboot;
1 – take effect immediately.

Comments

I found that did not work for me.  Still stuck on 4G (LTE):

# gsmctl -F
+QNWINFO: "FDD LTE","50501","LTE BAND 3",1300

I found these commands by reverse engineer of the Web UI setting:

# uci set simcard.@sim[0].service='3g'
# uci commit
# reload_config
# reboot

Confirmed working after reboot:

# gsmctl -F
+QNWINFO: "WCDMA","50501","WCDMA 850",4436