Zain Sudan has recently launched a new router, Huawei B315S-22 [Firmware 21.316.01.00.221]. 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 Zain Sudan Huawei B315S-22 router which comes with firmware version 21.316.01.00.221, 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 Zain Sudan Huawei B315S-22 [Firmware 21.316.01.00.221]:

1. Download the Multicast Upgrade Tool.

2. Unlocked Firmware 21.316.01.00.221 of Zain Sudan Huawei B315S-22 (Charge is 10USD, which you can pay through PayPal).

How to Unlock Zain Sudan Huawei B315S-22 [Firmware 21.316.01.00.221]?

1. Extract both downloaded files using WinRAR.

2. Switch On Zain Sudan Huawei B315S-22 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 B315S-22 BIN file and update the router, wait to restart [when it will show Network LED as GREEN, means flashing is completed].

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

7. Remove the B315S-22 router from the computer.

8. Switch off the Huawei B315S-22 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 Zain Sudan Huawei B315S-22 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 Zain Sudan locked Huawei B315S-22 [Firmware 21.316.01.00.221] router is unlocked permanently.


  1. i did the unlock successfully but when i put any new sim card it ask for unlock code i tried the puk without sucess what i have to do ?

  2. i did the update from local and everything goes well and the router restarted with blue then switched to green is that right or i have to do more ?

  3. i just noticed the remaining steps but before i processed i want to ask something i changed the wifi password and the login password do i have to repeat the bin upgrade again or shall i continue for the steps normally without doing anything ?
    i want ur response asap please

  4. really sorry for distributing but need ur urrgent answer should i proccess to putty even with changing login password to router settings or not ?

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