Warning: Legal & Ethical Notice Before reading this guide, you must understand that changing the IMEI (International Mobile Equipment Identity) of a cellular modem is illegal in many jurisdictions (including the USA, UK, EU, and China) if done to bypass tracking, evade carrier blacklists, or cover up stolen hardware. This article is for educational purposes only—specifically for developers testing prototype hardware, resetting development modules to default, or cloning a legally owned IMEI from a damaged module to a replacement under the same license agreement. Proceed at your own risk.
The primary command to change the IMEI on Quectel modules is AT+EGMR (EFS GSM File Management Read/Write). The IMEI is stored in the NV (non-volatile) memory at location 3, 10, or 29 depending on firmware version.
Quectel EC25 , changing the International Mobile Equipment Identity (IMEI) is generally strictly forbidden
by the manufacturer, as it serves as a unique identification code for the module. Modification is typically only allowed for legitimate repair or regulatory purposes after signing legal agreements with Quectel. Quectel Forums Official Procedures quectel ec25 change imei
Quectel does not provide public AT commands or tools for IMEI modification. Legitimate users (such as OEMs or authorized repair centers) must follow this process: Quectel Forums Contact Support : Send an official email to support@quectel.com Sign Agreements
: You must sign relevant legal terms and provide a valid justification (e.g., fixing a corrupted IMEI after a firmware crash). Obtain Tools
: Once approved, Quectel provides specialized AT commands and proprietary tools to rewrite the IMEI. Technical Context & Common AT Commands Warning: Legal & Ethical Notice Before reading this
While changing the IMEI is restricted, standard commands are used to query and manage the existing identity: Query IMEI to display the current IMEI. Unofficial Commands : Some community forums mention AT+EGMR=1,7,"
for similar modules, but this often fails on the EC25 without specific firmware or manufacturer-unlocked states. Modem State
: If attempting legitimate authorized changes, the modem interface must often be in a specific condition (e.g., disconnected from WAN) for commands to be successful. Quectel Forums Risks and Legal Warnings The primary command to change the IMEI on
: In many jurisdictions, changing an IMEI is illegal and can lead to device blacklisting or criminal penalties. Network Issues
: Modifying an IMEI can cause registration failures on cellular networks if the new ID does not match the expected device type (e.g., using a "phone" IMEI for a "modem" module). Hardware Safety
: Frequent modification or using incorrect factory reset commands like AT+QPRTPARA=3 can potentially harm or "kill" the module's flash memory. IMEI change (repair) on GL.iNet MiFi (EC25 )
Here’s a structured content piece for "Quectel EC25 Change IMEI" , written for developers, IoT integrators, or advanced users. It includes a disclaimer, prerequisites, step-by-step AT commands, and verification.