MIFI connection - how to force LTE

Technical Support for Routers
1

Does any one know how to force LTE? I keep connecting cdma on ATT in the US, because the reception is not good. I can and sometimes do get LTE with this device, and always with others. How can I force LTE???

2

You can try the AT command :AT+QCFG="nwscanmode",3

If you perform this instruction,in the absence of LTE signal,you may not be able to surf the Internet

 

3

Thanks!!!

For those who might want to use this:


echo -e "AT+QCFG=\"nwscanmode\",3,1" > /dev/ttyUSB2  #set modem to only LTE

echo -e "AT+QCFG=\"nwscanmode\",0,1" > /dev/ttyUSB2 # back to auto

 

4

format：AT+QCFG=“nwscanmode”[,<scanmode>[,<effect>]]

Parameter：

<scanmode> Number format, network search mode
0 AUTO
1 GSM only
2 UMTS only
3 LTE only
<effect> Number format, when to take effect
0 Take effect after UE reboots
1 Take effect immediately

1 Like
5

Do you know if there is a way to check what band the modem is connected on?

6

There is no direct command,But you can use some other methods

7

Forgiv my English is not good

8

Tell me your Email,I send document to you.

9

email removed for security, did you get it?

10

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11

Greetings!

I recently purchased a Mifi Router with a quectel module.I am new on openwrt and i have a question.

How do you send AT commands to the module?

Thanks

Panos

12

use echo to send command then use cat to get return. use ctrl+c to exit cat

echo -e "AT+QCFG=\"nwscanmode\",3,1" > /dev/ttyUSB2

cat /dev/ttyUSB2