Quectel Ec25 Change Imei

Connect to the module via your terminal software and check the current IMEI and firmware version to ensure proper communication. Command to check IMEI: AT+GSN Use code with caution. (The module will return the current 15-digit IMEI number). Command to check firmware version: ATI Use code with caution. Step 2: Enter the Secret Command Mode

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".

Modifying the IMEI on Qualcomm-based modules like the EC25 generally involves using specific AT commands or entering specialized diagnostic modes. Step 1: Establish a Serial Connection Connect your Quectel EC25 board to your PC via USB. quectel ec25 change imei

Or, power cycle the device by disconnecting and reconnecting the USB cable.

If the IMEI reverts to factory default after a power cycle, the module is running a write-protected NVRAM configuration. Securing a firmware version meant for open-market development is usually required to bypass this restriction. Conclusion Connect to the module via your terminal software

Expected Response: Displays the manufacturer, model (EC25), and exact firmware revision string. Query Current IMEI AT+GSN Use code with caution. or AT+CGSN Use code with caution.

The module will return a 15-digit number representing your current IMEI, followed by OK . Step 4: Write the New IMEI Command to check firmware version: ATI Use code with caution

Installed Quectel USB Serial drivers on your host operating system to expose the diagnostic and AT command ports.

Open your serial terminal software and connect to the (not the DM or NMEA ports). Baud Rate: Typically 115200 bps (or auto-baud). Data Bits: 8 Parity: None Stop Bits: 1

Mounted on a development board, PCIe evaluation board, or embedded inside a cellular router with exposed serial access.

Before making any changes, document your current hardware details. Read the existing IMEI by running: AT+GSN Use code with caution. Or alternatively: AT+CGSN Use code with caution.