AT command notes
Thursday, March 15th, 2018so it is that time of the decade again, that you need to poke with some AT modem commands, e.g. for 3G / LTE networks, …
Does the SIM card need a PIN?
at+cpin?
Enter the PIN if required:
AT+CPIN=1234
Current network:
AT+COPS?
Update: special service numbers, e.g. balance:
AT+CUSD=1,”*100#”
