How to use SN Write Tool

There are instructions on how to use the SN Write Tool to write or fix the IMEI number on any mobile device running on the MediaTek chipset.

Write IMEI on a MediaTek device using the SN Write Tool

1. Download and install the MediaTek Driver on your Windows computer. If MediaTek drivers are already installed on the computer, then skip this step.

2. Download and extract the SN Write Tool on your computer. After extracting, you will be able to see the following files:

3. Open “SN_Writer.exe” to Launch the tool.

4. Once the tool is launched, you will see the following screen:

5. Click on the “ComPort” dropdown menu and select the “USB VCOM” option.

6. Click on the “Target Type” dropdown menu and select the “Smart Phone” option if you wish to write IMEI on a smartphone. Alternatively, if you want to write IMEI on a feature phone, select the “Feature Phone” option.

7. Click on the “System Config” button.

8. Once the “System Config” dialog box is launched, tick the “IMEI” checkbox in the “Write Option” section. If your device has a dual-SIM feature, then tick the “Dual IMEI” checkbox under the “IMEI Option” section.

9. Under the “Database File Option,” click on the “AP_DB” button and locate the AP file of your device. You can find this file either within your device’s stock firmware or in the “AB BP base” folder.

10. Click on the “MD1_DB” button and locate the BP file of your device. You can find this file either within your device’s stock firmware or in the “AB BP base” folder.

11. Click on the “Save” button.

12. Click on the “Start” button.

13. Under the “Scan Data Write/Input” section, enter the values for “IMEI_1” and “IMEI_2,” then click on the “OK” button.

14. Power off your device and remove the battery, only if the battery is removable. Then, connect the device to the computer using the USB cable.

15. Once the tool detects the device, it will automatically write/flash the IMEI number onto the device. After the IMEI writing is completed, you will see a “Green Pass” message displayed on the tool.


Congratulations! Now, restart your device. Once the device has restarted, verify your IMEI by dialing *#06#. This action will confirm whether the IMEI write process was successfully completed.