we are using the BG95-M3 module (Revision: BG95M3LAR02A03). We have problem to obtain valid connection with BTS. “AT+COPS=0” has no results. After “AT+COPS=1,2,“26006”,0” and reboot, we obtain results below:
RX: +COPS: 1,0,“Play”,0
RX: +QCSQ: “GSM”,-86
RX: +CGREG: 0,1
RX: +QNWINFO: No Service
It’s is not possible to attach to network by command “AT+QIACT=1”(configuring PDP Context before), do calls by “ATDxxx;”, and send SMS. We had tested module on 2 different SIM card, and supplying module attaching 3,8 V(measured voltage ripple ~15 mV).