Download Firmware Huawei E3531i-2 Update 21.521.31.00.356 (Idea India)
Download Firmware Huawei E3531i-2 Update 21.521.31.00.356 (Idea India)
E3531i-2UPDATE_21.521.31.00.356_Idea_India.rar
15.4 MiB
2736 Downloads
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Download Firmware Huawei E3531i-2 Update 21.521.31.00.356 (Idea India)

Languages:English
Author:Kamlesh Kumar
Platforms:Windows 8
Category:Huawei
License:Freeware
Date:April 28, 2016

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Huawei E3531 dongle
Huawei E3531 dongle

19 COMMENTS

  1. Do you have Huawei E3531i-2 firmware version 22.521.31.00.419 or above. modem locked for Airtel Kenya.
    I tried upgrading it and now seems dead.

  2. Hi
    Thanks for the great work and sharing the firmwares

    Could you please confirm that this firmware is voice enabled ?
    If not, any idea where to get one ? I have a E3531i-2

    Thanks in advance !

  3. Dear, I need to know if e3531S-2 firmware will be compatible on e3531I-2 because all I can see on the link for Airtel is 3531s-2.kindly respond.thx

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