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

18 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?

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