Various network provider has launched Huawei B612 sub-model B612s-25d in various countries. Since it comes locked to a particular network, you can’t use it with other network provider simcard. Once the router is unlocked, you can use it with original simcard as well as others too.

Unlocking of Huawei B612s-25d is possible with ‘factory unlock code‘ if your router prompts for the simlock code after changing the simcard. Usually unlocking of the device by the code is the recommended method, but it costs high and if you have stock in bulk, then the device cost will be increased after unlocking. In this method, we will mention about boot shot, means you have to open the screws of the device to unlock it without any code.

How to Unlock Huawei B612 (B612s-25d)?

1. Download Huawei B612s-25d unlocker software.

2. Run the file on Windows 7 or XP PC only.

3. It will generate hardware id.

4. Pay 10USD at PayPal (While paying mention model, network and IMEI of the device. For the rest of the details, we will email).

Note : This method will not work with newer version, so kindly don’t pay.

5. Our team will provide the registration name and key.

6. Now unscrew the Huawei B612s-25d router.

7. Extract the board.

8. Cut a USB cable (opposite side of USB point) and solder the cable as shown in below image:

9. Plug the USB into the same computer on which you had generated the hardware id.

10. With a twizzer or any metal, touch and hold the boot with the ground pin (both are marked in the image).

11. Now switch on the router.

12. It will create a sound and you will see something is installing on your computer.

13. Now open Device Manager >> Ports (COM & LPT).

14. It will create a single COM port of Huawei.

Note: If it is in yellow color, then run the Huawei drivers.

15. Once Huawei COM port is ready as shown in above image, run the “B612s-25d Loader” file.

16. In a few seconds, the program will automatically close and you will again see something is installing on your computer.

17. This time you will see two Huawei COM Ports.

18. Now, run the “B612s-25d Unlock” file.

19. In a few minutes (depends upon the computer speed), it will be automatically closed.

20. Now your Viva Huawei B612s-25d router is successfully unlocked to use with all other sim cards.

The above-mentioned program will work with all Huawei B612s-25d routers.


  1. Good evening sir please if the above procedure can be done in video form it will be better because i one that is lock to mtn Ghana and i want to unlock it. Thanks

  2. My router Model:B612S-25D (B612S-25D) Is old version it’s just asking for the sim locked code will
    It work for me…. IMEI: 865294037168310

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