HI WHEN I GIVE AT+COPS=? TO | Microcontroller › 8051 › GSM SIM 300 interfacing › HI WHEN I GIVE AT+COPS=? TO April 6, 2013 at 10:34 am #9435 varun janaParticipant HI WHEN I GIVE AT+COPS=? TO MODULE I RETURNS ERROR SAYING +CME ERROR 22 WHAT DOES IT MEAN?
