Rm520n-gl how to set band for 4g

Technical Subjects
1

1st i want to lock on PLMN (without sim)
then i want to set different bands for 4g…of that particular plmn
i have tried this
At+cops=3,1,“405868”,12

OK
AT+QENG=“servingcell”

+QENG: “servingcell”,“LIMSRV”,“LTE”,“FDD”,404,70,DD76C21,352,515,1,4,4,2F8,-78,-11,-49,13,0,-,45

OK

still result are of 404,70

and i have changed the band values by
AT+QNWPREFCFG=“lte_band”,1
but servingcell values are not getting change
please help

2

Look for at+qcfg="band" in the AT command manual.

3

Or for AT+QNWPREFCFG="lte_band"

4

AT+QCFG=“band”

ERROR
Command error…

7

PLMN-locking by MCC:MNC code requires AT+COPS=3,2 and not AT+COPS=3,1.

Note the “LIMSRV”. Devices are required to be able to be used without a SIM for emergency calls. As such, they must find and camp on any usable signal from any provider.

Note that the PLMN 40470 cell being camped on is indeed on LTE B1, correctly reflecting the restriction imposed by your AT+QNWPREFCFG="lte_band",1 command.