Our team have developed a new software which can unlock Vivacom Bulgaria locked Huawei E5573S-320 router which comes with firmware version 21.316.03.01.738. It is totally safe unlocking solution as there is no need to open the screws of the device to unlock.

Our team has modified this firmware of Vivacom Bulgaria Huawei E5573S-320 (Firmware 21.316.03.01.738) and now it can flash the firmware to universal one. Means, unlocking of Vivacom Bulgaria Huawei E5573S-320 is now possible without opening the screws of the device.

Another good news is that, it will cost only 6USD to unlock Vivacom Bulgaria E5573 router, which you can pay through PayPal. You have to provide the hardware ID, model and IMEI, to get the key for the unlocking of Vivacom Bulgaria E5573S-320 router.

This modified file will work up to the firmware version 21.316.03.01.738, which comes in Vivacom Bulgaria E5573S-320 router.

How to Unlock Vivacom Bulgaria Huawei E5573S-320 (Firmware 21.316.03.01.738)?

1. Download the unlocking file of Vivacom Bulgaria Huawei E5573S-320 from the link which is provided at the end of this post.

2. Run on any Windows PC (32-bit or 64-bit / Win XP, Win 7 or Win 10).

3. Unlocking app of Vivacom Bulgaria E5573S-320 will generate the hardware ID (If you have paid then our team will ask for this info).

4. Our team will provide the key according to the hardware ID.

5. Once you are ready with key, download Huawei latest drivers.

6. Unzip using WinRAR software and run the setup file.

7. It will install the correct drivers in background.

8. Now download and run DC unlocker software.

9. Click on Search Magnifying Glass.

10. It will detect your device and show complete details.

11. At the end of the result, in a new line, paste AT^GODLOAD.

12. Press Enter from the keyboard.

13. Wait for 10-second to load the drivers.

14. Now run the Vivacom Bulgaria Huawei E5573S-320 unlocking file, which you have already downloaded.

15. Fill the registration name and key which you have got by our team.

16. Click Register to start flashing the firmware of your Vivacom Bulgaria Huawei E5573S-320 router.

17. Once flashing completed, again detect the device in DC unlocker software.

18. At the end of the result, paste the following:

AT^RESET

19. Press Enter from the keyboard.

A response will come as OK.

Now your Vivacom Bulgaria locked Huawei E5573S-320 (Firmware 21.316.03.01.738) is unlocked permanently to use with all sim cards.

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