Download Firmware Huawei E5577Cs-603 Update Free (Universal)
25.9 MiB

Download Firmware Huawei E5577Cs-603 Update Free (Universal)

Author:Kamlesh Kumar
Platforms:Windows 8
Date:September 24, 2016

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Huawei E5577 Mobile WiFi


  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.

    firmware version:

  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:

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

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

  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.
    Web UI version : WEBUI_17.
    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.
    Web UI version : WEBUI_17.
    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

    what wrong…..????

  8. I have unlocked my modem, but in this firmware version ( 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
    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?


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