Quectel Ec25 Change Imei

This is a comprehensive technical write-up regarding the process, implications, and mechanics of changing the IMEI on a Quectel EC25 series LTE module.

6. Alternative Methods

For modules where AT+EGMR is disabled, advanced users sometimes resort to: quectel ec25 change imei

AT+CFUN=0 # Disable RF to avoid conflicts This is a comprehensive technical write-up regarding the

Prerequisites

  • A Linux host or a Windows PC with a terminal program (PuTTY, Minicom, or screen).
  • The EC25 module must be detected by the OS.
  • The SIM PIN must be disabled or entered (the module shouldn't be blocking commands).
  1. Short the BOOT pin to GND during power-up.
  2. The EC25 enumerates as a Qualcomm HS-USB QDLoader port.
  3. Launch EFS Explorer (part of Quectel QPST package).
  4. Navigate to /nv/item_files/imei/ and replace the imei binary file.
  5. Unshort the BOOT pin and restart.

Want the exact AT command syntax for your EC25 firmware version?
Run AT+CGMR to get firmware revision, then check Quectel’s official Quectel_EC25_AT_Commands_Manual.pdf (section on +EGMR). A Linux host or a Windows PC with

Prerequisites

  • QPST (Qualcomm Product Support Tools): Specifically "QPST EFS Explorer".
  • Drivers: Qualcomm USB drivers installed on Windows.
AT+COPS=?