Dialog Sri Lanka has recently launched a new router, Huawei B310s-925. The sub-model of Huawei B310 comes with higher security and people are using boot shot method to unlock this router. Our team has got the success in the unlocking of the latest Dialog Sri Lanka Huawei B310s-925 router which comes with firmware version 21.321.03.00.297, without boot shot / opening the screws. Once the router is upgraded with our modified unlocked firmware, you can enjoy the unlocked router with all network provider simcards around the word.

Before proceeding with further steps, download the following required files, which is required to unlock the Dialog Sri Lanka Huawei B310s-925 [Firmware 21.321.03.00.297]:

1. Download the Multicast Upgrade Tool.

2. Unlocked Firmware 21.321.03.00.297 of Dialog Sri Lanka Huawei B310s-925 (Charge is 10USD, which you can pay through PayPal)

How to Unlock Dialog Sri Lanka Huawei B310s-925 [Firmware 21.321.03.00.297]?

1. Extract both downloaded files using WinRAR.

2. Switch On Dialog Sri Lanka Huawei B310s-925 to PC and connect to PC with LAN cable.

3. It will automatically open the default page of the router.

4. From Menu, click on “Local Update”.

5. Browse for BIN file from unlocked firmware folder.

6. Select the B310 BIN file and update the router, wait to restart.

In case you don’t find local update, then proceed with further steps:

7. Remove the B310 router from the computer.

8. Switch off the Huawei B310s-925 router.

9. Run the downloaded Multicast Upgrade Tool.

10. Select Network Card of your PC [Marked as A in image].

11. Check “Force Upgrade” [Marked as B in image].

12. Select the BIN file from downloaded folder [Marked as C in image].

13. Finally click on Start [Marked as D in image].

14. Now connect the Dialog Sri Lanka Huawei B310s-925 router to PC with LAN cable.

15. Switch ON the router.

16. It will start flashing the firmware.

17. When Network LED of router will be GREEN, then click Stop button [Marked as E in image].

18. Switch off the router and again switch On.

19. Now run Putty software which is available in downloaded folder.

20. Make changes according to the above screenshot in “Session” menu but don’t click “Open” button.

21. Now click on “Terminal” menu and make the following changes according to the below screenshot:

22. Finally click “Open” button.

23. It will open a black terminal window.

24. Type the following command:


25. Press Enter from the keyboard.

26. Again paste the following command:

atc at^nvwrex=8268,0,12,1,0,0,0,2,0,0,0,a,0,0,0

27. Press Enter from the keyboard.

Now your Dialog Sri Lanka locked Huawei B310s-925 [Firmware 21.321.03.00.297] router is unlocked permanently.


  1. Hello friend,
    I installed this firmware to my router. But the user name and the password of my router are changed. Now i can not log in to the router to setup the connection. I reset the router manually using the reset button. But the user name and password are incorrect.
    How can i solve this problem ?

  2. I tried this method yesterday … it works 100% for me… now it support with SLT sim… but it not work with Mobitel 4G or Dialog 4G sim… why?

  3. hey, do you know a way to install a customer firmware like DD-WRT on this router to monitor bandwidth usage by mac addresses while still being able to use it for the dialog 4g connection

  4. Hello im sri lanka thanx My router was unlocked, but when I put the SIM in, the signal does not come from 4g.3g. Can’t change auto setting 4g only how to fix it

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