Disclaimer: 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.
Unlike some cheaper modules, the EC25 stores its IMEI in a secure, one-time-programmable (OTP) region of the firmware, as well as in NV (non-volatile) memory. Quectel’s standard AT+EGMR command (used for reading/writing IMEI on many GSM modules) is often locked or restricted on production EC25 units. quectel ec25 change imei
The Quectel EC25 allows IMEI modification via AT+EGMR=1,7,"your_15_digit_imei" in 95% of development modules. For carrier-locked or production-locked units, it is either impossible or requires privileged authorization. Disclaimer: This essay is provided for educational and
Use this capability responsibly. It is a powerful tool for hardware developers and network testers, but a dangerous weapon for fraudsters. Always adhere to local laws and carrier terms of service. The author and platform do not condone any unlawful activity
If you need to change IMEIs regularly for legitimate testing, consider using a hardware IMEI switcher board or a software-defined cellular stack like srsLTE, rather than tampering with production-grade modules.
