Huawei E5577s-321 (locked to Zain Saudia Arabia) devices running firmware version 21.200.05.00.375 can be unlocked with normal procedure, means after changing the firmware unlocking is possible. But, other sub-models of E5577 does not allow the change the firmware. Either the devices are giving Error 19 or asking for the data lock code. In both of cases, you can’t unlock the Huawei E5577.

This post is especially for those people who are owning E5577s model devices. This procedure also works with 5577Cs. Zain Zordan is also offering the E5577s-321, but it comes with firmware version 21.200.07.02.1367 and Web UI version 17.100.11.03.1367, but can not be unlocked by simply changing the firmware. We have to take the help of boot shot.

Requirements to Unlock Huawei E5577s MiFi Router:

  1. Screwdrivers set to dismantle the device.

2. Windows PC to change the firmware.

3. Huawei Mobile Partner (for drivers).

4. DC Unlocker.

5. Universal Master Code tool (to generate the firmware code).

6. WinRAR to extract the zip file.

7. Balong tool.

8. Huawei E5577s Usbloader.

9. Huawei E5577s-321 Firmware version 21.180.99.03.00.

10. Huawei E5577s-321 Firmware version 21.316.01.00.00.

How to Unlock Huawei E5577s MiFi Router?

  1. Switch Off E5577s.

2. Dismantle it and let the battery inside.

3. Touch the boot pin and ground of the board from any tweezer / wire.

Note: Interested people can refer the boot pin of different devices at here.

4. Connect USB to E5577s and then with PC USB port.

Note: If sound-card is available on your Windows PC or laptop, you can hear a sound. Same time you will see in the taskbar notification area, some hardware is found and will try to install the drivers.

5. Remove wire / tweezer from the device.

6. Install Huawei Mobile Partner in PC.

If you are interested, you can see one COM port of Huawei device under device manager of the PC.

7. Run “Balong USB Downloader” tool.

8. Click on Detect button.

9. It will detect COM port of your device as Boot_3G.

10. Under Loader, locate the E5577s_Usbloader.bin file.

11. Once ready then click on Load.

12. Wait till progress bar reach at the end.

13. Now you will notice that other new hardware found on your PC and it is installing.

14. Close the “USB Balong” tool.

15. Now you can see two COM ports under device manager.

16. Unzip the file Huawei E5577s-321 Firmware version 21.180.99.03.00 and run it.

17. Let it successfully update the device.

18. Now run the DC unlocker tool.

19. Detect your device under it.

20. At the end of the result paste the following:

AT^NVRDEX=50503,0,128

21. Copy the whole results in text and pay 6 USD through PayPal button of this website. Once paid, I will contact you through email and will ask you for details. Rest all the errors will be solved remotely.

Note: The method has been tested and working fine with Huawei E5577s and E5577Cs modems.

Update: German Telekom is providing Huawei E5577Cs-321 which comes with firmware 21.316.01.01.748 and WebUI 17.100.15.00.748. It can be unlocked with above mentioned procedure only.

ReadHow to Unlock Huawei E5577Cs-321 Router of Optimus Portugal?

127 COMMENTS

  1. Found modem : E5577s-932
    Model : Huawei E5577 (untested)
    IMEI : 866852020759087
    Serial NR. : X8BBY15601006510
    Firmware : 21.200.09.00.76
    Dashboard version : WEBUI_17.100.09.01.76_MRE5
    Web UI version : WEBUI_17.100.09.01.76_MRE5
    SIM Lock status : unlocked
    Wrong codes entered : 10 (unlock attempts left : 0)

    For unlock, may require firmware change, check tutorial or contact support

  2. After update Huawei E5577s-321 Firmware version 21.180.99.03.00
    my modem in FTM mode
    On dc-unlocker
    DC – Unlocker 2 Client 1.00.1277

    Detecting modem :

    selection :
    manufacturer – Huawei modems
    model – Auto detect (recommended)

    Found Applications port COM7

    Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 000000000000000
    Serial NR. : 0123456789ABCDEF
    Firmware : 21.180.99.03.00
    Compile date / time : Feb 13 2015 20:39:48
    Hardware ver. : CL1E5573SM02
    Dashboard version : 00.00.00.000.00
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 10)

    ===================================================================
    AT^NVRDEX=50503,0,128

    ^NVRDEX: 50503,0,128,00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    OK

      • yes its true that one com port (3G PC UI Interface) enable when i shot device..
        but after i upload the bin, the device turn on and only show blank display then 3G PC UI interface com disappear and the second com port is not activated..
        i’ve been trying to reinstall the driver modem and repeated the progress from beginning but always like that..3G PC UI Interface com will disappear when i upload the bin and the second com is not activated..
        now my modem was no response when i try to turn it on with the battery..
        do you have any solutions..?

  3. my case were the same as Paull i do your steps on e5577Cs-603, after uploading usbloader.bin display turns on and in show blank display, restart it but it always can not turn on normally any more always detected as 3G PC UI interface..
    can you share usbloader.bin for e5577Cs-603? thanks for helping me out

  4. i’m using usbloader.bin for e5573 and now i appears 2 COM ports, FC – Application Interface and FC – PC UI Interface, and i use this 2 COMs and proceed to unbrick modem using your guide?

    because i have tried the firmware updater is not recognizing any of these ports, do i have to use others? huawei flasher by fransis also not detecting device, hisilicon writer from dc-unlocker also not detecting, these ports are for repair purpose or what ? FC ports thanks

  5. Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 860782031410691
    Serial NR. : F5DDU16616013405
    Firmware : 21.200.07.02.1367
    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)

    My modem is locked with KSA Zain network. Please suggest solution for unlock .How to Install new firmware step by step and also firmware link which support this modem.

  6. ===================================================================

    DC – Unlocker 2 Client 1.00.1332

    Detecting modem :

    selection :
    manufacturer – Huawei modems
    model – Auto detect (recommended)

    Found Applications port COM5

    Found modem : E5577Cs-321
    Model : Huawei E5577 (untested)
    IMEI : 000000000000000
    Serial NR. : 0123456789ABCDEF
    Firmware : 21.180.99.03.00
    Compile date / time : Feb 13 2015 20:39:48
    Hardware ver. : CL1E5573SM11
    Dashboard version : UTPS23.015.02.00.03_MAC23.015.02.00.03
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 10)

    ===================================================================

    AT^NVRDEX=50503,0,128

    ^NVRDEX: 50503,0,128,00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    OK

  7. what should we do
    in paypal we see this
    We’re sorry. We can’t complete your purchase at this time.
    Please return to the merchant and choose another way to pay.

  8. hi mr.Kamlesh Kumar
    in blong usb program after detect com port and chose a upload file and click to load . BUT display a error
    can i get your email address to send screen capture of that error
    thanks

  9. ===================================================================

    DC – Unlocker 2 Client 1.00.1277

    Detecting modem :

    selection :
    manufacturer – Huawei modems
    model – Auto detect (recommended)

    Found Applications port COM5

    Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 000000000000000
    Serial NR. : 0123456789ABCDEF
    Firmware : 21.316.01.00.00
    Compile date / time : Dec 15 2015 15:01:07
    Hardware ver. : CL1E5573SM02
    Dashboard version : 00.00.00.000.00
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 10)

    ===================================================================
    AT^NVRDEX=50503,0,128

  10. Hello,

    Is it possible to unlock E5577Cs-603 XL Indonesia without opening the modem/boot shot method?
    Kindly please point me to the step-by-step guide.
    Thank you.

  11. hi deare
    IMEI : 866852020444094
    Serial NR. : X8BBY15521013782
    Firmware : 21.200.09.00.76
    Dashboard version : WEBUI_17.100.09.01.76_MRE5
    Web UI version : WEBUI_17.100.09.01.76_MRE5
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 10 (unlock attempts left :

  12. Found Applications port COM4

    Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 867705022257956
    Serial NR. : 2XDFG16127029735
    Firmware : 21.200.07.09.1151
    Dashboard version : WEBUI_17.100.07.11.1151_MRE5
    Web UI version : WEBUI_17.100.07.11.1151_MRE5
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 10 (unlock attempts left : 0)

    I has downgrade Firmware to 21.200.07.00.00 but fail Wrong lock code..Do you have a solution
    for my bolt?

  13. Hi,,boos….
    Ido every thing as like say…but Firmware version 21.180.99.03.00 after my display blank..logo showing after only light on..pls.can you help me..

  14. hello, can i do it with all huawei E5573s model or only specific model? i want to know if i have a mifi huawei E5573s-806 can i install the firmware of mifi E5573s-302 on it?

    • the link in the “Interested people can refer the boot pin of different devices at here” does not have a diagram of E5577s-321 none of the diagrams match with the one i have….

  15. Hi
    Please guide me because this model is not available in your tips. One way to help me so that I can open my lock
    Model: E5577cs_321
    Imi : 860783032303257
    Frimware: 21.316.01.02.401
    Web Ui : 17.100.14.00.401_MRE5
    Woring code entered :10 ( unlock attempts left 0)

    Pls help me
    If not the way. Is the destruction of the boot is made shot
    🤔🤔🤔🤔🤔🤔

  16. Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 867262024438788
    Serial NR. : F5D7N15B13006668
    Firmware : 21.200.07.02.1367
    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 : 8 (unlock attempts left : 2)

  17. Hi.
    sir I want unlock the Huawei e5577-932 Zain network from Saudi Arabia. There is the Any way to unlock the device. e5577-932 Fro.zain

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