Quectel Ec25 Change Imei Portable -

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This command performs a full hardware reset of the module. Wait roughly 10 to 15 seconds for the virtual serial ports to disconnect and reconnect to your host system. Step 5: Verify the Final Modification

Changing the IMEI on Quectel EC25 Modules: A Complete Technical Guide

AT+CFUN=0 # Disable RF to avoid conflicts

for similar modules, but this often fails on the EC25 without specific firmware or manufacturer-unlocked states. Modem State quectel ec25 change imei

For all intents and purposes, in the context of the EC25, the IMEI is . Once changed, the new value persists across power cycles, reboots, and firmware updates until it is explicitly changed again. It is a permanent configuration change, not a temporary "spoof".

: Open your serial terminal (e.g., minicom ) and connect to the correct serial port. You must use the AT command port; typically, it is /dev/ttyUSB2 for Quectel modules. The baud rate is often 115200 :

Quectel hides the IMEI write function in the AT+QCFG (Configuration) namespace. However, the module requires a special and SIM network presence to authorize the change.

However, one topic that surfaces repeatedly in technical forums and within the developer community is the ability—or perceived necessity—to change the module's unique 15-digit IMEI (International Mobile Equipment Identity). Whether driven by a desire to circumvent carrier restrictions, replace a corrupted IMEI after a failed firmware update, or for other advanced use cases, the process is fraught with complexity and serious legal implications.

Some EC25 modules ship with IMEI write-protection enabled. To disable it temporarily, you may need the "IMEI unlock password" from Quectel (usually available only to verified OEM customers). However, for most standard EC25 modules: Modem State For all intents and purposes, in

: A serial terminal emulator (e.g., QCOM, PuTTY, or Tera Term).

Before running commands, understand the legitimate use cases:

This command triggers a full functionality reboot of the module without physically power-cycling the board. Step 5: Verification

Follow these precise steps to communicate with the modem and modify the identifier. Step 1: Establish the Connection