RM520N-GL, modem not upgrading to EN-DC NSA mode

Hi,

We have RM520N-GL modem, and in some areas/locations, modem is not upgrading to EN-DC/NSA mode.

After checking, AT+QENDC returns (1) value, cell site + PLMN confirm supports EN-DC

Any guidance team?

RM520NGLAAR03A03M4G_A0.303.A0.303

AT+QENDC

+QENDC: 1,1,0,1,0

OK


AT+QCAINFO

+QCAINFO: "PCC",1850,100,"LTE BAND 3",1,423,-89,-10,-58,1
+QCAINFO: "SCC",500,100,"LTE BAND 1",1,469,-96,-11,-75,255,0,-,-

OK

Dear @morpig
Do you have any data operations? During operation, you can check whether it is NSA.