Quectel Change Imei ((better)) -

Some newer Quectel modules (Linux-based ones like EC20) support a hidden command:

via a serial terminal. While not officially supported, this process is used for IMEI repair, sometimes requiring specialized commands like AT*MRD_IMEI quectel change imei

Use AT+EGMR=0,7 for SIM1 and AT+EGMR=0,10 for SIM2 (check your module’s AT manual). Some newer Quectel modules (Linux-based ones like EC20)

Understanding the intent behind the keyword "Quectel change IMEI" requires separating legitimate engineering needs from illicit activities. 7 for SIM1 and AT+EGMR=0

Incorrect Diag commands can brick the module permanently.