Quectel Ec25 Change Imei ^new^

The short answer is technically yes, but with significant caveats. Altering the International Mobile Equipment Identity (IMEI) of a Quectel EC25 is possible through specific AT commands or low-level Qualcomm tools. However, this process is fraught with legal restrictions, technical risks (including the potential to permanently disable the module), and strong opposition from the manufacturer. This article provides a comprehensive, technical overview of the methods, risks, legality, and practical considerations associated with modifying the IMEI on Quectel EC25 modules.

The following procedure is documented in Quectel’s confidential engineering bulletins and should only be performed on modules you legally own and in a jurisdiction where such modification is permitted for legitimate engineering purposes (e.g., restoring a lost IMEI after a firmware failure).

OK

for AT+EGMR.

Reboot the module for the changes to take effect.

However, one topic that surfaces repeatedly in technical forums and within the developer community is the ability—or perceived necessity—to change the module's unique 15-digit IMEI (International Mobile Equipment Identity). Whether driven by a desire to circumvent carrier restrictions, replace a corrupted IMEI after a failed firmware update, or for other advanced use cases, the process is fraught with complexity and serious legal implications.

AT+CGSN

AT+EGMR=1,7,"123456789012345"

To make it truly permanent (without Quectel’s signing tool), you cannot. The module always retains a golden copy in write-once memory. AT+EGMR simply overlays it in the EFS.

| Aspect | Original IMEI | Changed IMEI | |--------|---------------|---------------| | Registration on LTE | ~3 sec | ~3 sec (no difference) | | Data throughput | 50 Mbps down | 50 Mbps down | | VoLTE (if enabled) | Works | Works only if IMEI range matches device type | | Carrier OTA updates | Works | May fail if IMEI doesn’t match device model in carrier DB | quectel ec25 change imei

Some older EC25 firmware versions (pre-2019) or custom engineering builds from Quectel allow AT+EGMR . If you have access to such firmware:

Or

This content is for educational purposes only – e.g., restoring a factory-assigned IMEI after firmware corruption, or revalidating test modules in a shielded environment. Misuse may violate laws like the US Criminal Code § 1029, EU Directive 2002/21/EC, or similar regulations worldwide. The short answer is technically yes, but with

Before attempting to modify the IMEI, you must establish a reliable communication interface with the Quectel EC25 module.

Once the module completes its boot cycle, reconnect the terminal emulator and verify that the change was successful. Run the verification command: AT+GSN Use code with caution.