Download Firmware Update E5577s-321_Update_21. (General)
Download Firmware Update E5577s-321_Update_21. (General)
26.1 MiB

Download Firmware Update E5577s-321_Update_21. (General)

Author:Kamlesh Kumar
Platforms:Windows 8
Date:February 27, 2016

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Huawei E5577 Mobile WiFi


  1. hi Kumar
    the device is asking for datalock code:

    Device name: E5577Cs-321
    IMEI: 867262020043343
    IMSI : 419040110837042
    My number: Unknown
    Hardware version: CL1E5573SM11
    Software version:
    Web UI version:
    LAN MAC address: 58:7F:66:69:5C:20
    WAN IP Address:

  2. Hi Kamlesh,
    I’d like to unlock :
    Device name: E5577Cs-321
    IMEI: 860783030971956
    IMSI : 419031003648095
    My number: Unknown
    Hardware version: CL1E5573SM11
    Software version:
    Web UI version:

  3. Now new E5577s-321_Update_21.316.01.00.0 Firmware need datalock code.


    Modem : E5577Cs-321
    IMEI : 867262027222528

  4. Hello, need nck and help with this.

    Device name: E5577Cs-321
    IMEI: 860783032460701
    Hardware version: CL1E5573SM11
    Software version: 21.316.01.02.401
    Web UI version:

  5. i have a huaewi router locked with mobily network.
    i just wanna unlock it and use it with other network.
    please suggest me what i need to do. when i try to update the firmware its asking for data lock code.

  6. E5577Cs-321
    IMEI: 867262025095298
    can i ask also what flashing tools i need, and also the firmware i can use?
    thank you soo much!

  7. Hello Mr KUMAR,
    I’m sorry to bother you..

    I’ve got an Huawei E5577 French version, and i’m trying to flash it, but it asking me the data lock code, which i can’t find on the internet.. It’s been days i try… Can you please try to calculate a code for me ? My Imei is
    860782032265698. Many thanks.


  8. Hi,

    I would like to use the wifi extender/repeater function of my E5577Cs -321 (t-mobile)
    IMEI 860783033581885
    but this option is not available when I login via the web GUI.
    can you please advice how it can be enabled.


  9. Mr. Kumar,

    My unit is from Bahrain Viva network, please unlock my pocket wifi..

    Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 867262023871740

  10. Found Applications port COM303

    Found modem : E5577Cs-321
    Model : Huawei E5577 (untested)
    IMEI : 867262025057801
    Serial NR. : D2LDU15B23001519
    Firmware :
    Dashboard version : WEBUI_17.
    Web UI version : WEBUI_17.
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 0 (unlock attempts left : 10)

  11. Hi, can I get a code for my Huawei (Zain Saudi Arabia) Pocket Wifi.

    Model: E5577s-321
    IMEI: 860782031331103

    Thank you 🙂

  12. Dear Mr. Kamlesh Kumar
    Sir can i get my data lock code
    Device name: E5577Cs-603
    IMEI: 867705022909242
    Hardware version: CL3E5573SM06
    Software version: 21.319.01.01.66
    Web UI version:

  13. Dear friend can you plz tell me the unlock code for as below my two device … i really appropriate your help

    Device Modal: E5577CS-321
    IMEI: 867262025044379

    Device Modal: E5372S-32
    IMEI: 864578010433878

  14. Dear Mr. Kamlesh Kumar,

    please can you give me an “DATALOCK CODE” for my E5577CS-321.
    IMEI: 867262023908617

    Thank you very much!

  15. Found modem : E5577s-321
    Model : Huawei E5577 (untested)
    IMEI : 867262020498547
    Serial NR. : F5D7N15523000854
    Firmware : 21.316.01.00.00
    Dashboard version : WEBUI_17.
    Web UI version : WEBUI_17.
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 1 (unlock attempts left : 9)

    For unlock, may require firmware change, check tutorial or contact support
    plz unlock code…………….


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