Zain carrier of Saudi Arabia has recently launched a new Huawei device, the E5577s-321. It can also be unlocked, but since it has Auth V4 algorithm, you need to flash the device first then only unlocking is possible. After unlocking you can use all network providers SIM around the world. You can purchase this device in Kuwait and Saudi Arabia.

Unlocking of Huawei (E5577) E5577s-321 Zain device is a big process, and it takes at least 30 minutes. Currently, firmware 21.200.05.00.375 with WebUI 17.100.09.00.375 is available and can be unlocked.

Download the following required files which will be used in the process of unlocking of Huawei E5577s-321:

  1. Firmware Update Huawei E5577s-321 21.180.99.03.00 (General)
  2. Huawei Firmware E5577s-321 Update 21.316.01.00.00 (Universal)
  3. Latest Huawei Mobile Partner for drivers
  4. Universal Master Code Tool to generate firmware code or you can also leave comment
  5. DC unlocker

How to Unlock Huawei E5577s-321 Zain mobile WiFi router?

1. Install latest Huawei mobile partner.

2. Use universal master code tool to generate firmware code through Huawei tab or comment below to get the firmware code/password.

3. Reset the Huawei E5577s-321 and connect to Windows PC with its default data / USB cable.

4. Run firmware update E5577s-321 21.180.99.03.00.

5. It will put your device in download mode and detect your device.

6. Now the E5577s-321 router will ask you password, input the firmware code which you have already got in Step 2.

7. Wait till finish wizard.

8. Now install DC unlocker.

9. Detect your Huawei E5577s-321 Zain router under it.

10. Copy and paste the below command at the end of the result:

“AT^NVRDEX=50503,0,128” (without quotes) and press Enter from the keyboard.

11. It will generate some NV codes in hash format.

12. Copy all the details and the same time pay 6 USD through PayPal. Once paid, I will ask you about hash code through email. NCK / unlock code will be generated accordingly for E5577s-321 device and will be emailed back.

Note I: Don’t proceed with further steps without instruction, otherwise your device may not work with other SIM card.

Note II: After getting the unlock code, update the device with Huawei firmware E5577s-321 v21.316.01.00.00; which you have already downloaded.

Update: Viva Bahrain has also launched Huawei E5577s-321 that comes with hardware version CL1E5573SM02, firmware 21.200.05.00.632 and Web UI 17.100.11.01.632. It is unlocked successfully.

Update II: Huawei E5577s-321 is also available by Tele 2 (Sweden) which is running with firmware 21.200.05.00.56. Above procedure will work on this router also.

Update III: Zain SA has launched a brand new E5577s-932. Huawei E5577s-932 Unlocker app is available.

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