Technically, changing an IMEI on a module like the EC25 isn't as simple as editing a text file. It usually involves interacting with the device’s —the low-level language used to talk to modems. Specifically, commands like AT+EGMR are often the gateway. However, because the IMEI is intended to be permanent, manufacturers often lock these commands behind "Engineer Mode" or require specific firmware versions to prevent casual tampering. The Ethical and Legal Boundary
AT+QCFG="imei",0,"123456789012345"
Make a note of this number. You may need to restore it later. quectel ec25 change imei
The Quectel EC25 is one of the most popular LTE Cat 4 modules in the M2M and IoT space, prized for its global band support, GNSS integration, and robust AT command set. However, a recurring topic in developer forums and engineering labs is the ability to change its factory-assigned International Mobile Equipment Identity (IMEI). This review explores why one might change it, how it’s done (technically), and the critical legal and operational pitfalls. Technically, changing an IMEI on a module like
: Modification may fail if the module is connected via certain WAN interfaces. Disconnect external ethernet or network cables during the process. 2. Fastboot Method (For Advanced Recovery) However, because the IMEI is intended to be