Quectel Ec25 Change Imei Page

AT+CGSN=1

In many scenarios, software tools provided by the manufacturer or third-party developers are used to simplify this interaction. These tools send hexadecimal strings to the module's firmware, bypassing standard user-level restrictions to update the identification register. Legal and Ethical Implications

AT+CFUN=1,1

Connect the Quectel EC25 module to your computer using the USB cable. quectel ec25 change imei

On Linux, run ls /dev/ttyUSB* . Usually, ttyUSB0 is DM/Diag, ttyUSB1 is NMEA, and ttyUSB2 is the Modem/AT port.

Changing the IMEI of a cellular module is illegal in many jurisdictions (including the US, EU, and China) if done with intent to defraud, bypass network blocks, or hide a stolen device. This guide is for educational purposes, legacy system integration, and testing in controlled lab environments where you own the hardware and have explicit permission from your network provider.

The Quectel EC25 allows IMEI modification via AT+EGMR=1,7,"your_15_digit_imei" in . For carrier-locked or production-locked units, it is either impossible or requires privileged authorization. AT+CGSN=1 In many scenarios, software tools provided by

The IMEI is a unique identifier assigned to every mobile device, and it's used by network providers to identify and authenticate devices on their networks. Alex had a few reasons for wanting to change the IMEI, which he claimed was for "research purposes only."

A reboot ensures the new settings are fully applied.

Before proceeding, you must understand the legal implications of changing an IMEI: On Linux, run ls /dev/ttyUSB*

After what seemed like an eternity, Alex successfully changed the IMEI of his Quectel EC25. He was relieved and proud of himself for overcoming the challenges. He verified that the new IMEI was recognized by the module and that it was working as expected.

Make a note of this number. You may need to restore it later.

Open QPST Configuration. It should detect the device on the COM port corresponding to the Diagnostic interface. Once detected, open "EFS Explorer".

Response: OK

Various forums, including PINE64 , have indicated that on specific firmware versions, modification might be attempted, although success is not guaranteed.