Download Firmware Huawei E5577Cs-603 Update 21.200.07.00.00 Free (Universal)
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Download Firmware Huawei E5577Cs-603 Update 21.200.07.00.00 Free (Universal)

Languages:English
Author:Kamlesh Kumar
Platforms:Windows 8
Category:Huawei
License:Freeware
Date:September 24, 2016

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Huawei E5577 Mobile WiFi

98 COMMENTS

  1. Hi Can you help me mate? My device huawei e5577cs-603 bolt slim 2 restarting every 3 -5 minutes I think the software broken since i have added antenna. I need a firmware code to recovery the device.

    IMEI:867705022460253
    firmware version: 21.200.07.00.00

  2. Hi, would it be possible to use huawei flasher v1.6 or v2 to downgrade the E5577Cs-603 to the above universal firmware?

    I am thinking the steps would be:
    – extract the firmware .exe to obtain the .bin and .hmf files
    – put the mifi to download mode using at^godload (to bypass the datalock code requirement)
    – flash the extracted firmware files using huawei flasher

    will it work?
    what are the risk of using huawei flasher?

  3. Helpme Please,
    Unlock Data Code?
    Huawei : E5577Cs-603
    IMEI : 867705023414374
    IMSI : 510113140584194
    Hardware version: CL3E5573SM06
    Software version: 21.319.01.01.66
    Web UI version: 17.100.15.00.66

  4. excuse me, I have just bought BOLT E5577Cs-603 (Unlocked Status). Position firmware in 21.200.07.00.00.

    The question, whether I Bolt’s firmware can be updated to a higher version with a secure and locked ??
    Terimakasih

  5. Selected Applications port COM3

    Found modem : E5577s-603
    Model : Huawei E5577 (untested)
    IMEI : 867705023126788
    Serial NR. : 6DLFG16812001858
    Firmware : 21.319.01.00.97
    Dashboard version : WEBUI_17.100.15.00.97_MRE5
    Web UI version : WEBUI_17.100.15.00.97_MRE5
    SIM Lock status : unlocked
    Wrong codes entered : 10 (unlock attempts left : 0)

    It’s locked but detected unlocked sim, why?

  6. Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 867705023364462
    Serial NR. : 2XDFG16A10014114
    Firmware : 21.319.01.01.66
    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 : 10 (unlock attempts left : 0)

    Can you tell me why status unlocked, but when i using another sim card, its show in interface sim locked?

  7. E5577SC-603

    IMEI 867705021730243
    Fw 21.200.07.08.1151
    Webui 17.100.07.11.1151

    NOT WONT UPDATE fIRMWARE 21.200.07.00.00
    what wrong…..????

  8. I have unlocked my modem, but in this firmware version (21.100.07.00) is’n displaying messages icon, can you give the higher firmware sir?

  9. Please help me
    My E5577Cs-603 bolt logo
    IMEI 86770502014306
    Firmware version 21.200.07.00.00
    made by Indonesian not get properly network and no have separate option 2g ,3g direct auto have i thing that’s why not get properly network. Please tell me what is the solution?

  10. Please Help me
    I want unlock my Huawei E5577Cs-603 modem for all Operator now it’s firmware ver 21.319.01.01.66
    IMEI 867705023625516
    Thanks.

  11. Please Help me..
    I want unlock my Huawei E5577Cs-603 modem for all Operator

    Device : E5577Cs-603
    IMEI : 867705022978049
    Firmware : 21.319.01.01.66

    Tahnks

  12. E5577Cs-603
    IMEI : 867705023301043
    when I tru install E5577Cs-603_Update_21.200.07.00.00 for downgrade, because
    my modem now 21.319.01.01.66
    when step 2, ask datalock code, can u help me ?
    I try at^sfm=1 , but error
    thx

  13. hi routerunlock, how much I should pay if u help me to unlock my modem?
    E5577Cs-603
    IMEI : 867705023301043
    Firmware : 21.319.01.01.66
    , and how to pay?
    thx

  14. Found modem : E5577Cs-603
    Model : Huawei E5577 (untested)
    IMEI : 867705024129534
    Serial NR. : 2XDFG16B25028857
    Firmware : 21.200.07.00.00
    Dashboard version : WEBUI_17.100.12.00.03_MRE5
    Web UI version : WEBUI_17.100.15.01.66_MRE5
    SIM Lock status : unlocked
    Wrong codes entered : 0 (unlock attempts left : 10)

    i want to change the IMEI but always “ERROR”.

    can you helpme please?
    thanks before

  15. Found Applications port COM8

    Found modem : E5577Cs-603
    Model : Huawei AuthVer 4 modem (New)
    IMEI : 867705023483718
    Serial NR. : 2XDFG16A19003599
    Firmware : 21.200.07.00.00
    Dashboard version : WEBUI_17.100.11.00.03_MRE5
    Web UI version : WEBUI_17.100.11.00.03_MRE5
    SIM Lock status : unlocked

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