Quectel Ec25 Change Imei !!exclusive!! Guide

If you are on a Linux host (OpenWrt/Raspberry Pi) and only see ttyUSB0 :

For modules where AT+EGMR is disabled, advanced users sometimes resort to:

Try without password first. If it returns ERROR , use: quectel ec25 change imei

Launch your terminal emulator, select the correct COM port, and set the baud rate (usually 115200 or 9600 ). Test the connection by sending: AT Use code with caution. The module should respond with: OK Use code with caution. Step 2: Verify the Current IMEI

: Flash the broken sys_rev file provided in the recovery package. This step writes an intentionally broken system revision to the modem's sys_rev partition to allow the subsequent IMEI writing to be accepted. If you are on a Linux host (OpenWrt/Raspberry

First, understand that standard 3GPP commands will permanently change the IMEI. For example:

If the IMEI changes but reverts after a power cycle: The module should respond with: OK Use code with caution

, do not allow for modification. However, community forums and certain third-party "modem pool" vendors often reference specific commands to "repair" or change the IMEI: Command Pattern : The most commonly cited command is AT+EGMR=1,7," " Variant Specifics : Some variants or firmware versions may return a

AT+EGMR=1,10,"350123456789012"

Connect your EC25 module to your PC via USB. Open your Device Manager (Windows) or check /dev/ttyUSB* (Linux) to identify the .