: Now, use the fastboot command to write the correct IMEI. Replace 12345678901234 with your actual 15-digit IMEI number.
OK
Where 1 indicates write to NVRAM, 7 is the IMEI identifier, and the quoted 15-digit string is the new IMEI.
# Connect to EC25 at 115200 baud AT # Response: OK quectel ec25 change imei
Changing the IMEI on a Quectel EC25 module is technically possible, primarily using the AT+EGMR=1,7,"new_IMEI" AT command or, for advanced users, Qualcomm low-level tools like QFirehose. However, this capability exists in a legal gray area that, for the vast majority of use cases, is firmly illegal.
Quectel modules use specific, often undocumented or engineering-level AT commands to alter the IMEI in the device's non-volatile memory (NVRAM). The command structure depends heavily on the firmware version running on your EC25. Method 1: Using the Standard Quectel Production Command
AT+QPRTPARA=1
This is a comprehensive technical write-up regarding the process, implications, and mechanics of changing the IMEI on a Quectel EC25 series LTE module.
Note: Replace YOUR_NEW_15_DIGIT_IMEI with the exact 15-digit sequence you intend to program.
To understand how to change the IMEI, one must understand where it is stored. The Quectel EC25 is a LTE Cat 4 module commonly used in IoT devices, industrial gateways, and consumer routers (like those from GL.iNet or TP-Link). : Now, use the fastboot command to write the correct IMEI
: Newer Quectel firmware versions often block the AT+EGMR command to comply with anti-tampering regulations. If blocked, you may need to downgrade to an older, developer-friendly firmware version using the QFlash tool.
If the module stops responding after a reboot, check your host computer's Device Manager. The USB endpoints may have re-enumerated under different COM port numbers.
The EC25 uses a standard Hayes command set over its serial ports. # Connect to EC25 at 115200 baud AT