AT+QENG=1
Quectel provides an official method for authorized customers:
This method is fully legal and carrier-compliant but only available to OEMs. quectel change imei
Under the Indian Telegraph Act, IMEI tampering is punishable with up to three years in prison.
Warning: This method can permanently brick the RF calibration if you write to the wrong NV address. AT+QENG=1 Quectel provides an official method for authorized
While the technical capability to modify the IMEI on Quectel modules exists—facilitated by diagnostic interfaces, QMI protocols, and proprietary AT commands—it remains a highly restricted procedure. Legitimate applications are confined strictly to OEM manufacturing lines and authorized repair centers.
The unauthorized alteration of IMEI numbers undermines the integrity of mobile networks, facilitates the use of stolen hardware, and violates criminal statutes in most jurisdictions. Therefore, research into these mechanisms should be strictly limited to defensive security analysis and the development of anti-tampering technologies. This method is fully legal and carrier-compliant but
Disclaimer: 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.
If you're working with Quectel modules for legal development (e.g., restoring original IMEI after corruption), here's the general approach:
This is the most critical section. In the vast majority of countries, changing the IMEI of a cellular device is illegal unless explicitly authorized by law or the device manufacturer.
If your use case is illegal, stop reading now.