Before changing it, query the current IMEI to record it for backup purposes. AT+EGMR=0,7 Response: +EGMR: "xxxxxxxxxxxxxxx" 3. Change the IMEI
The module will respond with a 15-digit string, which is your current IMEI. Alternatively, you can use the command: AT+CGSN Use code with caution.
Plug in your module via USB and open . You should see several new ports under "Ports (COM & LPT)": Quectel USB AT Port (Used for sending commands)
: If you get an error, it may be because the modem's interface is "up" and connected to a network. Try disconnecting any WAN or Ethernet connections before running the command. Persistence
Set the baud rate to 115200 (8 data bits, 1 stop bit, no parity). quectel change imei install
AT+QPRTPARA=0
Quectel modules utilize specific AT commands for identity management. The most common command for this task is AT+EGMR .
On many standard Quectel architectures (such as Qualcomm-based modules), specific high-level AT commands allow identity configuration after entering an engineering access token. Step 1: Query the Current Identity Verify the active configuration: AT+EGMR=0,7 Use code with caution. Step 2: Write the New Target Configuration
through a terminal interface. This process is often used to "repair" a lost IMEI or to spoof a different device type (like a tablet) to bypass carrier plan restrictions. MikroTik community forum IMEI Change Command Procedure Before changing it, query the current IMEI to
), it may be blocked by your specific firmware version. Some users report success after updating to specific "open" firmware versions provided by regional sales engineers. Modem Manager Conflicts : On Linux (like Mobian or OpenWrt), you must stop the ModemManager
AT+CGMR // Checks current firmware version AT+CGSN // Displays the current factory IMEI AT+QPRTPARA=1 // Backs up current NVRAM parameters to flash memory Use code with caution. Record the output of these commands safely in a text file. Step 4: The Flashing and Configuration Process
Note: This command format works on many EG25-G and similar Qualcomm-based modules, but is not officially documented by Quectel.
In specialized industrial scenarios, replacing a faulty module and needing the new module to match the old device's network identity (rare). Prerequisites for Quectel IMEI Change Alternatively, you can use the command: AT+CGSN Use
This will yield the same result. Note this number down safely as a baseline. Step 4: Firmware Environment and Configuration Commands
The IMEI is a 15‑digit unique identifier assigned to every cellular device, including Quectel modules such as the EC25, EG25‑G, RM520N‑GL, EP06‑E, and MC25. Mobile carriers use the IMEI to validate devices on their networks, track stolen equipment, and enforce network policies. Quectel modules are widely used in IoT gateways, CPEs, MIFI routers, and tracking devices—and their IMEI is typically stored in non‑volatile memory (EFS). Reading the IMEI is straightforward using AT commands like AT+CGSN or AT+GSN , but modifying it is far more complex and controversial.
Before attempting a change, verify the module's current identification to ensure it is communicating correctly. Open the serial port corresponding to the . Send the following command to query the current IMEI: AT+CGSN Use code with caution.