Deutsche Telekom locked Huawei E5577Cs-321 can be unlocked as our team has successfully developed the tool. It is basically modified firmware 21.316.01.00.55 of Deutsche Telekom Huawei E5577Cs-321. This device security is too high, so all normal firmware gives error.

The best features of our modified firmware is that it can unlock your router without opening the screws of the device. Means, for unlocking of Deutsche Telekom Huawei E5577Cs-321, there is no boot shot involved.

This modified file will work with only firmware version 21.316.01.00.55, which comes locked to Deutsche Telekom Huawei E5577Cs-321 Huawei router.

How to Unlock Deutsche Telekom Huawei E5577Cs-321 (Firmware 21.316.01.00.55)?

1. Download the unlocking file of Deutsche Telekom Huawei E5577Cs-321 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 Deutsche Telekom Huawei E5577Cs-321 will generate the hardware ID, copy and email me when our team will email for this (Charge is 10USD which you can pay through paypal.

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 Deutsche Telekom Huawei E5577Cs-321 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 Deutsche Telekom Huawei E5577Cs-321 router.

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

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


19. Press Enter from the keyboard.

A response will come as OK.

Now your Deutsche Telekom locked Huawei E5577Cs-321 (Firmware 21.316.01.00.55) is unlocked permanently to use with all sim cards.