Using AT+EGMR=1,7,"new_imei" can write a new IMEI to the module’s NVRAM. Some developers do it for prototyping — but shipping a product with a changed IMEI is a felony in many countries (wireless fraud).
This paper is for educational and informational purposes only. The author does not condone or encourage the illegal alteration of IMEI numbers. Tampering with device identifiers is a criminal offense in many jurisdictions. quectel change imei
AT+EGMR=1,7,"YOUR_NEW_15_DIGIT_IMEI"