Quectel Ec25 Change Imei

Quectel modules use a specific write command for the IMEI. Replace 123456789012345 with your target 15-digit number. AT+EGMR=1,7,"123456789012345" Expected Response 4. Save and Restart

This command is used to write the IMEI to certain chips, but on most Quectel EC25 firmware versions, it is either:

Changing the IMEI of a Quectel EC25 module is primarily used for —restoring a valid ID after firmware corruption—or to ensure compatibility with specific carrier whitelists. Technical Methods for IMEI Modification

(e.g., Error 23) if the command is blocked or if the EFS (Embedded File System) partition is corrupted. Third-Party Tools : Some specialized hardware, such as Quectel EC25 Modem Pools

The new IMEI is written to the configuration space but will not be broadcast to the cellular network until the baseband stack completely reinitializes. To safely commit the changes and restart the module, execute: AT+CFUN=1,1 Use code with caution. quectel ec25 change imei

Run AT+CGMR to get firmware revision, then check Quectel’s official Quectel_EC25_AT_Commands_Manual.pdf (section on +EGMR ).

AT+CEREG? # Should return 1 (registered) or 5 (roaming)

Connect your EC25 device to your computer via USB. Open your computer's Device Manager. Under "Ports (COM & LPT)", look for the "Quectel USB AT Port". Note the COM port number (e.g., COM3 on Windows) or the device path (e.g., /dev/ttyUSB2 on Linux).

If the above command fails, try the alternative syntax structure: AT+EGMR=1,5,"123456789012345" Use code with caution. Or simply: AT+CGSN="123456789012345" Use code with caution. Method 3: Using the Quectel +QNV Command (Advanced) Quectel modules use a specific write command for the IMEI

: A serial terminal emulator (e.g., QCOM, PuTTY, or Tera Term).

Connect the Quectel EC25 module to your computer using the USB cable.

AT+EGMR=1,7,"your_new_15-digit_IMEI_here"

"The original ID is flagged," Elias said, his voice flat. "If this module checks into the tower with its birth certificate, the geofence triggers. We need it to look like a generic, unlisted industrial sensor." He knew the risks. In many jurisdictions, altering an IMEI is a legal gray area Save and Restart This command is used to

Mobile network operators use the IMEI to "whitelist" or "blacklist" devices. Altering this identifier can be viewed as a form of identity fraud, potentially leading to the permanent banning of the hardware from the carrier's infrastructure or legal prosecution. Conclusion

AT+CFUN=0 # Disable RF to avoid conflicts

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(usually labeled as such in Device Manager). Set the baud rate to 2. Verify Current IMEI Query the current IMEI to ensure the connection is working: [Your Current 15-digit IMEI] 3. Enter Command to Change IMEI

I tested two EC25A modules (original IMEI vs changed IMEI) on T-Mobile US and Verizon.

AT+EGMR=1,7,"123456789012345"