Earlier we have shared about the unlocking of Mobily Saudi Arabia Huawei E5577s-932 which comes with firmware 21.315.01.00.82 and WebUI 17.100.13.00.82. It can be unlocked without opening the screws of the device, means there is no need to boot shot process involved.
By referring this post, you can unlock Zain Bahrain locked Huawei E5577 (E5577s-321) router which comes with Firmware version 21.200.07.02.1367 and WebUI 17.100.11.03.1367. This unlocking does not involve any firmware/boot shot, means it is totally safe. Even you will not lose the warranty of the modem.
How to Unlock Zain Bahrain Huawei E5577s-321 with Firmware 21.200.07.02.1367?
1. Download DC unlocker app.
2. Connect to Windows PC with USB cable.
3. It should open the default WebPage of the Zain (If not, then remove all another internet devices from PC. Open “My Computer >> Virtual CD-ROM and install on PC. If still, the problem exists, then reset the device and process again.
4. Click on Search Icon from DC Unlocker.
5. It will show the details like:
Found modem : E5577s-321
Model: Huawei E5577 (untested)
IMEI : 86726**********
Serial NR. : F5D7N15*******
Firmware: 21.200.07.02.1367
Compile date / time : Oct 21 2015 11:09:54
Hardware Ver. : CL1E5573SM02
Dashboard version: WEBUI_17.100.11.03.1367_MRE5
Web UI version: WEBUI_17.100.11.03.1367_MRE5
SIM Lock status: Locked (Card Lock)
Wrong codes entered : 0 (unlock attempts left : 10)
6. At the end of the results, paste the following command:
AT^NVRDEX=50503,0,128
7. Press Enter from the keyboard.
8. It will generate some encrypted keys, copy and keep it a notepad file.
9. Now, pay 6USD at PayPal.
10. When we will ask then send me encrypted file.
11. Encrypted keys will be converted in unlock code and will be emailed again.
Note: You can download the latest Huawei drivers from here.
12. Once you get the unlock code, change the default SIM card with any other operator.
13. Switch On the Zain Huawei E5577s-321 router.
14. Again connect the device to PC with USB cable.
15. Log in to the device with admin/admin.
16. It will ask for the 8-digit sim lock code.
17. Enter the unlock code which is provided by modemsolution.com.
Now your device will be unlocked forever and can be used with all supported bands sim cards.
For unlimited unlocking of Zain Bahrain Huawei E5577s-321 router, contact us.
 router which comes with Firmware version 21.200.07.02.1367 and WebUI 17.100.11.03.1367. This unlocking does not involve any firmware/boot shot, means it is totally safe. Even you will not lose the warranty of the modem.){kind=link}