I purchased this kit including the Quectel EC25. I followed the instructions from Sixfab, softwarewise, it all works well, but I fail to register my SIM to the network. The SIM I’m using for the current test is my everyday all inclusive SIM including unlimited 4g data, calls and SMS.
I paste below the results of the AT instructions:
# I set echo on ATE1 OK # I set error codes to verbose AT+CMEE=2 OK # display product info, modem mnfc, model, revision ATI Quectel EC25 Revision: EC25AFAR05A04M4G OK # Quectel modem IMEI number AT+GSN 861641XXXXXXXX OK # display status of the SIM. Ready, I already entered the PIN AT+CPIN? +CPIN: READY OK # query the initialization status of SIM card. (7 = CPIN READY & SMS DONE & PB DONE). AT+QINISTAT +QINISTAT: 7 OK # display SIM card number AT+QCCID +QCCID: 89410206XXXXXXXX OK # display SIM International Mobile Subscriber Identity number AT+CIMI 228021XXXXXXXX OK # display phone functionality. 1 = Full function AT+CFUN? +CFUN: 1 OK # display Signal Quality Report. RSSI and BER = Not known or not detectable AT+CSQ +CSQ: 99,99 OK # Network registration status AT+CREG? +CREG: 0,2 OK # Look at current operators AT+COPS=? +CME ERROR: operation not allwed
So it seems that the SIM is all good, but somehow there is an issue with getting network. The whole setup is next to my phone using the same plan and same SIM card, and it works well (even tough the network is not the strongest). I tried to unplug and replug the antennas, but I end up with the same results. How can I further investigate where the issue is? Could it be on the side of the provider (SUNRISE, in Switzerland)? I imagine that the command AT+COPS=? should return the list of reachable mobile providers, right?
Thanks in advance for the support!