I am trying to send AT commands to the modem to keep the modem always active. I tried the File > Examples > MKRNB > Tools > SerialSarapassThrough example, but that gave me a +CME ERROR: operation not supported. Here is the output for the commands I sent via serial monitor:
AT OK AT+UPSV=0 +CME ERROR: operation not supported
Is there a built in code or any other code which I could use to send that command?