MIFI connection - how to force LTE


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???


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




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





<scanmode> Number format, network search mode
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


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


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


Forgiv my English is not good


Tell me your Email,I send document to you.


email removed for security, did you get it?




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?




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