I am using SIM800 Module with Arduino Micro. It reponds well to basic AT commands. But i am unable to send SMS from this module as: AT+CMGF=1 ERROR Now while further debugging i saw AT+COPS? Returns 0, means not connected to any operator. That may be causing the CMGF failure. But my AT+COPS=? retu…

SIM800 gsm Module returns 0 on AT+COPS?

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