Huawei has recently launched E5577 mobile WiFi router. It is currently available in Indonesia which is locked to Bolt network, and known as Bolt Slim 2. It is also available through Zain network in Saudi Arabia with a model No. E5577s-321 with firmware version 21.200.05.00.375.

When you will detect Bolt E5577 router in DC unlocker, you will get the following info :

Found modem : E5577Cs-603
Model : Huawei E5577 (untested)
IMEI : 86770*********
Serial NR. : 2XDFG15612015672
Firmware : 21.200.07.06.1151
Dashboard version : WEBUI_17.100.07.08.1151_MRE5
Web UI version : WEBUI_17.100.07.08.1151_MRE5
SIM Lock status : Locked
Wrong codes entered : 0 (unlock attempts left : 10)

Huawei E5577 Mobile WiFiHuawei E5577 comes with Authorization version 4 (V4 Algo) and there is no direct way to unlock it. For unlocking you have to flash the device and I need testers, since I have not personally used it.

In this post I am sharing two firmwares, any volunteers can test it. After testing leave message via comment, unlocking solution will soon come. If any person have solution then also he can share it.

How to update the firmware of E5577 Huawei mobile WiFi router?

  1. Download the firmware from the below link.

2. Disconnect internet and close the browser.

3. Run the firmware update.

4. It will ask you password (leave comment with model and IMEI to get the firmware password).

5. Input the password and wait till finish wizard.

Download Firmware Update Huawei E5577s-932 21.200.09.00.00

Download Firmware Update Huawei E5577s-321_21.180.99.03.00 (General)

Below two mentioned firmware needs datalock code in flashing.

Download Huawei Firmware E5577s-321 Update 21.316.01.00.00

Download Huawei Firmware Update E5577Cs-603 v21.200.07.00.00

Update : If device is asking for datalock code then first put device in download mode by using command:

AT^GODLOAD

Note: Now device LED light will keep blinking. Now in firmware / webui / software, in any update device will not ask any password like : firmware code / password / datalock code.

Enjoy.

567 COMMENTS

  1. Huawei E5577Cs-603
    Imei: 867705020649360

    by the way, mine shows unlocked… can i update the firmware? will it change to locked if its updated?

    please advise.. thanks

  2. Hello help me please for firmware code
    Huawei E5577S -321
    Imei 867262026831568

    thank you for your help

    Stéphane

                    • Detect device under DC unlocker, and paste the following command:

                      AT^NVWREX=50502,0,128,8F 29 FF 8E A8 CA 34 89 78 73 18 BA 9E F5 9C 64 0B A4 DB 81 DC 03 45 6E 72 DA EC 6A 0C 7C 90 65 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 8B 8C F4 B5 AF 0C F2 2C FE E0 F4 46 9C CF 47 95 36 71 1F 1C BF 05 7F 84 AB A9 F2 92 89 33 3C 12 01 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

                      AT^RESET

                      let me know if it works

                    • DC – Unlocker 2 Client 1.00.1277

                      Detecting modem :

                      selection :

                      manufacturer – Huawei modems

                      model – Auto detect (recommended)

                      Found Applications port COM6

                      Found modem : E5577s-321

                      Model : Huawei E5577 (untested)

                      IMEI : 867262026831568

                      Serial NR. : F5DDU15C19002033

                      Firmware : 21.313.01.01.309

                      Dashboard version : WEBUI_17.100.12.01.309_MRE5

                      Web UI version : WEBUI_17.100.12.01.309_MRE5

                      SIM Lock status : unlocked

                      Wrong codes entered : 0 (unlock attempts left : 10)

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

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

                      AT^NVWREX=50502,0,128,8F 29 FF 8E A8 CA 34 89 78 73 18 BA 9E F5 9C 64 0B A4 DB 81 DC 03 45 6E 72 DA EC 6A 0C 7C 90 65 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 8B 8C F4 B5 AF 0C F2 2C FE E0 F4 46 9C CF 47 95 36 71 1F 1C BF 05 7F 84 AB A9 F2 92 89 33 3C 12 01 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

                      AT^RESET

                      OK

  3. Hello Sir, plis help me for data lock code

    Huawei e5577-Cs603

    IMEI : 867705022056705

    Serial NR. : 2XDFG16127009610

    Firmware : 21.200.07.08.1151

    Dashboard version : WEBUI_17.100.07.11.1151_MRE5

    Web UI version : WEBUI_17.100.07.11.1151_MRE5

    thx

  4. E5577cs-321
    867262023205683
    Can you specify versions of my model enabled repeater function
    I have now with T-Mobile Austria without sim lock
    my current version of the software 21.316.01.00.00

  5. aldi May 12, 2016 at 10:47 am
    can i get the password huawei e5577
    imei : 867705021815176

    Kamlesh Kumar May 12, 2016 at 5:08 pm
    867705021815176 Firmware code = 37943010

    how can you get the firmware code? what software you use?

  6. Hi sir, i have huawei E5577Cs-603 network bundling bolt indonesia. Mine is factory unlocked, but a notification update so disturb me. I have a plan to change the factory firmware to universal firmware. And same with several reply above, there is datalock code so i cant update the firmware. i’ve tried to follow type AT^NVRDEX=50503,0,128 with DC-Unlock and My Huawei Termina but reply show an “ERROR”. But if i tried the AT^RESET command the modem respond to restart.

    ————————————
    manufacturer – Huawei modems
    model – Auto detect (recommended)

    Found Applications port COM10

    Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 867705020130445
    Serial NR. : 2XDFG15608002957
    Firmware : 21.200.07.02.1151
    Dashboard version : WEBUI_17.100.07.06.1151_MRE5
    Web UI version : WEBUI_17.100.07.06.1151_MRE5
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 10)

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

  7. Dear Sir,
    I tried all these codes with my device, but it does not work:
    Model No. : E5577s-932
    IMEI : 866852022540709
    NEW ALGO CODE : 88526275
    OLD ALGO CODE : 58170590
    FLASH CODE : 57206883

    Do I need to downgrade so that for the codes to work? I will be thankful for your help.

  8. hello dear, could you help me in this urgently?
    Device name: E5577s-932
    IMEI: 866852021098840
    IMSI : 420012704524409
    My number: Unknown
    Hardware version: CL1E5577SM
    Software version: 21.200.09.00.76
    Web UI version: 17.100.09.01.76
    LTE TYPE: TDD

  9. hello dear, could you help me in this?

    Device name: E5577s-932
    IMEI: 866852021098840
    IMSI : 420012704524409
    My number: Unknown
    Hardware version: CL1E5577SM
    Software version: 21.200.09.00.76
    Web UI version: 17.100.09.01.76
    LTE TYPE: TDD

  10. hi e5577s-321 was successfully unlocked but at end I flashed with 21.316.01.00.00. it still has zain ksa locked dashboard or we ui. no simcards connects. I nned to downgrade to a universal firmware so that I can then use a web ui that is not locked. can u please help.

  11. Huawei E5577Cs-603
    Imei: 867705021742008

    by the way, mine shows unlocked… can i update the firmware? will it change to locked if its updated?

    please advise.. thanks

  12. Succes update to firmware 21.200.07.00.00.
    But when try to update Web UI 17.100.12.00.03, need data lock.

    Please advise.. thanks

  13. Found modem : E5577s-603
    Model : Huawei E5577 (untested)
    IMEI : 867705021365602
    Serial NR. : 6DLFG15625016423
    Firmware : 21.200.05.05.1151
    Dashboard version : WEBUI_17.100.07.08.1151_MRE5
    Web UI version : WEBUI_17.100.07.08.1151_MRE5
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 10)

  14. i have e5577Cs-603

    I want to add USSD feature and i noticed this firmware has it (E5577s-321_Update_21.180.99.03.00.exe)

    when i try to write it to my device, it says the inserted target is not E5577s-321, how can i get USSD on e5577Cs-603?

  15. Hi,

    I need datalock code for e5577s-321 to upgrade to huawei firmware, how can I obtain it ?
    I don’t need to unlock it, it is’nt simlocked.

  16. Име на устройството: E5577Cs-321
    IMEI (уникален номер на апарата): 867262024575910

    TENKS

  17. IMEI: 867262029972211
    MODEL: Huawei E557-321

    I have everything but when it starts downloading the firmware it gives an error “error code 19”
    I have stacked there
    help please

  18. Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 867262029972211
    Serial NR. : F5D7N16123013532
    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 : 6 (unlock attempts left : 4)

    this is my current device status
    when it comes to download the firmware it says “error code 19”
    I have stacked there
    help please

  19. Hi Kumar I have STC e5577 with imei 866852021109639 I cannot flash firmware it asks for datalock code, even in godload it retruns me error 13.
    :::::::::::::::::::::::::::::::::
    Manufacturer: huawei
    Model: E5577s-932
    Revision: 21.200.09.00.76
    IMEI: 866852021109639
    +GCAP: +CGSM,+DS,+ES
    ::::::::::::::::::::::::::::::::

    Boot Shot method is not working either… Can you help me?

  20. Kindly I install software and run and found the Modem E5577s-321
    after that ask me about password (what is password?)

    and please send to me unlock IMIE for modem E5577s-321
    IMEI is: 860782030016812

    Thanks Dear

  21. My huawei E5577s when it turned on showing huawei logo and not responding. It became like this after I downgraded the wareframe from 21.200 to 21.180, what should I do ?!!!

  22. Found modem : E5577s-932
    Model : Huawei E5577 (untested)
    IMEI : 866852020394067
    Serial NR. : X8BBY15521008779
    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)

    It is asking for data lock code ???!! what should i do ?

    please help me

  23. Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 867705023035260
    Serial NR. : 2XDFG16617007166
    Firmware : 21.200.07.00.66
    Dashboard version : WEBUI_17.100.14.00.66_MRE5
    Web UI version : WEBUI_17.100.14.00.66_MRE5
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 10 (unlock attempts left : 0)

  24. Hi Kamlesh,

    i’ve followed your instruction and i’ve entered installing mode using AT^GODLOAD command. However when i tried to install firmware, it keeps show me error 13 and failed. Fyi, while in installing mode, the dc unlocker also cannot detect the modem.

    is there any step i am missing?

    my device is :
    Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 867705022804245
    Serial NR. : 2XDFG16317006364
    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 : unlocked
    Wrong codes entered : 10 (unlock attempts left : 0)

  25. Device name: E5577Cs-603
    IMEI: 867705023043934
    IMSI : 510113139545782
    My number: Unknown
    Hardware version: CL3E5573SM06
    Software version: 21.200.07.00.66
    Web UI version: 17.100.14.00.66

    And the problem is
    Wrong codes entered : 10 (unlock attempts left : 0)

    Same problem with comment upper me
    Sorry my english so bad
    Hahahaa
    Plis helm master
    Thanks alot

      • I have try with
        Huawei Firmware Update E5577Cs-603 v21.200.07.00.00
        But code is wrong
        I try without open dc unlocker
        I just install the firmware
        And driver detect
        -Usb composite, pc ui interface and application interface
        Mifi position ON

  26. I have try with
    Huawei Firmware Update E5577Cs-603 v21.200.07.00.00
    But code is wrong
    I try without open dc unlocker
    I just install the firmware
    And driver detect
    -Usb composite, pc ui interface and application interface
    Mifi position ON

  27. I have try with
    Huawei Firmware Update E5577Cs-603 v21.200.07.00.00
    But code is wrong
    I try without open dc unlocker
    I just install the firmware
    And driver detect
    -Usb composite, pc ui interface and application interface
    Mifi position ON

    What must i do master??

  28. Dear Kamlesh Brother
    How can I unlock the sim lock??
    Huawei E5577Cs-321
    imei:-867262020317549
    4g Lte viva kuait
    Please help me please

  29. Dear Kamlesh Brother

    How can I unlock the sim lock??
    Huawei E5577Cs-321
    IMEI:-867262020317549
    4G Lte – VIVA Kuwait
    Please help me please

  30. hi kumar please i need update wizard password this is my imei thank you
    Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 867262027083193

  31. Selected Applications port COM3

    Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 86770502286xxxx
    Serial NR. : 2XDFG1661500xxxx
    Firmware : 21.200.07.00.66
    Dashboard version : WEBUI_17.100.14.00.66_MRE5
    Web UI version : WEBUI_17.100.14.00.66_MRE5
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 10 (unlock attempts left : 0)

    when i input at^sfm=1 output ERROR

    why?

  32. DC – Unlocker 2 Client 1.00.1277

    Detecting modem :

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

    Found Applications port COM4
    Found Diagnostics port COM4

    modem not found !

    how to make my e5577 detect by dc unlocker?

  33. hi
    I followed th steps on this page
    unlock4modems dot com/how-to-bypass-datalock-code-while-updating-firmware-of-huawei-algo-v4-modem

    the device is now showing “installing” for nearly an hour is that normal.. I am having zain e5577-375c

  34. Dear brother kamlesh
    need steps from A 2 z for the device
    Viva 4G LTE
    E5577Cs-321
    IMEI:867262024586529 and you give me the code Firmware code = 54860663 as i faced error while downloading Ifeel i did some thing wrong
    Big Thanks

  35. My Ver:21.200.07.01.397
    need steps from A 2 z for the device
    Viva 4G LTE
    E5577Cs-321
    IMEI:867262024586529 and you give me the code Firmware code = 54860663 as i faced error while downloading Ifeel i did some thing wrong
    Big Thanks

  36. Sir when I click START to update wizard its (searching device )and next in update wizard box asking DATALOCK code. what is data lock code ???
    Please help me

  37. Model No. : e5577
    IMEI : 867262021909724
    NEW ALGO CODE : 62922727
    OLD ALGO CODE : 36228706
    FLASH CODE : 36439251

    unlock code failed

  38. Dear Kamlesh,
    I would highly appreciate your support in helping me with using USSD commands for my Huawei E5577Cs-321 router, running on the following:
    Firmware: 21.200.07.01.1377
    WebUI: 17.100.12.00.1377
    IMEI: 867262025278936
    Kindly contact me through email, I would like to donate through Paypal for any available solutions. It is very frustrating not being able to check my balance and re-charge.
    Thank you and Regards,
    Vassilis

  39. Found modem : E5577Cs-603 ( XL GO )
    Model : Huawei E5577 (untested)
    IMEI : 867705023234707
    Serial NR. : 2XDFG16A06000338
    Firmware : 21.319.01.00.66
    Dashboard version : WEBUI_17.100.15.00.66_MRE5
    Web UI version : WEBUI_17.100.15.00.66_MRE5
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 1)

    how to unlock ?

  40. ( BOLT MAX 2/ SLIM 2 )
    Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 867705023070770
    Serial NR. : 6DLFG16622000417
    Firmware : 21.200.05.09.1151
    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 : 0 (unlock attempts left : 10)

  41. Hello boss…
    Can u help me to unlock STC MODEM E5577s-932?

    I hope u can give me tutorial for it.
    Because my modem is dead 2pcs.
    After balong use unlock E5577s-603

    I hope u can help me.. thx u boss… ^_^

  42. Device name: E5577
    IMEI: 867705022629113
    IMSI : 510881330630798
    Hardware version: CL3E5573SM06
    Software version: 21.200.07.09.1151
    Web UI version: 17.100.07.11.1151
    MAC Address: D4:61:2E:14:54:8D

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