An Analysis of IMEI Modification Procedures on Quectel Cellular Modules: Technical Mechanisms, Security Implications, and Regulatory Compliance
Modifying the IMEI voids all warranties with Quectel and the device distributor. Frequently Asked Questions
A: No. Quectel does not officially distribute any tool for modifying the IMEI. The company explicitly advises against changing the IMEI.
Then reboot the module. Always keep a copy of the original IMEI in a secure location before performing any modification. quectel change imei
Quectel IMEI Management: A Comprehensive Guide to Changing and Repairing IMEI
I understand you're looking for information about changing the IMEI on Quectel modules. However, I need to provide an important legal and ethical warning first:
Attempting to change a Quectel module's IMEI carries significant risks: An Analysis of IMEI Modification Procedures on Quectel
Modifying this number is not like changing a user password; it's akin to altering a car's VIN (Vehicle Identification Number), which is strictly regulated.
This can happen if the module contains an anti‑tampering feature. In some firmware versions, a “fuse” is blown the first time an IMEI change is attempted, permanently locking the IMEI. Newer firmware on modules like the RM502Q‑AE explicitly states “Optimized the IMEI anti‑tampering function” in the release notes, meaning that the AT+EGMR command may no longer have any effect.
A specialized tool designed for backup, restore, and calibration of NVRAM/QCN files, which contain the device's identity and RF calibration data. Technical Troubleshooting and Limitations The company explicitly advises against changing the IMEI
Connect the Quectel module to a PC using a development board or integrated USB interface.
On older Quectel modules (like M95 or M66), a hidden AT command may work: