This review is based on reverse-engineering community documentation and personal testing. Always comply with local laws and network operator terms of service.
Some specific firmware builds require entering a "Production Mode" or using a proprietary write command: AT+QCPWRITEIMEI="354123456789012" Use code with caution. Copied to clipboard Step 4: Finalizing and Verification quectel ec25 change imei
One of these will work depending on your EC25 firmware revision (check with AT+CGMR ). Copied to clipboard Step 4: Finalizing and Verification
This essay is provided for educational and research purposes only. Modifying the International Mobile Equipment Identity (IMEI) of a cellular device is illegal in many jurisdictions, including the United States (under the Federal Communications Commission regulations and the Wireless Telephone Protection Act) and the European Union. IMEI alteration is frequently associated with fraud, tracking evasion, and the use of stolen devices. The author and platform do not condone any unlawful activity. Readers are solely responsible for complying with all local laws. quectel ec25 change imei
The module runs a proprietary real-time operating system (RTOS) on a Qualcomm baseband processor (MDM9x07 platform). The IMEI is not stored in the user-accessible file system (like /etc/config ), but in the or QCN (Qualcomm Calibration) partition .