When i run AT+CPIN?, i get the +CME ERROR: 13
I have written a serial driver application that sends AT+CSIM commands from a Raspberry PI to Quectel EC25-E. Iam testing this application driver against different SIM (vendors). For one of the SIM i get this CME ERROR:13.
Because of this, everytime read() returns 0 bytes.
Please let me know if there is a way to troubleshoot the rootcause of the +CME ERROR:13