Hey Guys, whenever I enter commands like AT, ATE0, AT+CMGF, it response well (OK) but whenever I enter commands like AT+CMGR , AT+CLIP and more the module returns ERROR, what is Happening?
first of all ensure your sim was properly inserted and was acknowleged by the modem.
secondly at+cmgr=1 is to read the first message that was received..if u havnt received any message than it will give an error....so to ensure send one message to that number and use this at command..it wont give an error