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  1. #1
    Soundwave
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    Downgrading Firmware Assistance Questions TF300T

    "This is the place to ask questions"

    I got caught up in the Jelly Bean OTA update. I lost a few things, mainly root, that I took care keeping from a few incremental OTA's. I need help to get back to a version of firmware where I can get it again. I have searched all over and tried Fastboot to flash a blob. I get a good response from fastboot devices. When I flash the blob for .29 my TF300T display shows a progress bar, with fastboot starting out like it's going to "take" but ending up in a fail. Last night I tired over and over. Same results each time.

    I dont wish to unlock my bootloader, use CWM (it's on my HTC Incredible), or any other tools that require me to unlock and lose my warranty.
    I have a bit of pc experience. Have flashed a few phones and an old Cruz pad I have lying around.

    I have Android SDK Tools. Also searched other forums and got all drivers installed and working on my Win 7 64 bit desktop.
    The Fastboot/ADB package out there has never worked running out of C:\Fastboot. I grabbed all the files in the platform-tools directory from SDK, threw them in C:\Fastboot and finally got Fastboot to work.

    First I tried putting firmware on the microSD card. No luck. Tried renaming the firmware. No luck either.
    Do I need a blank, formatted SD with only the fw on it?

    So, can anyone help on getting older firmware flashed on this pad? At least until Jelly Bean has a root available?
    Is there a way to fool the TF300T to force a firmware "downgrade"? On other Androids sometimes all that's needed is to rename the zip something like update.zip.

    Anyone? Thanks beforehand!



  2. #2
    Super Moderator
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    It can't be done without rooting & flashing.

    Moved to Jelly Bean.

  3. #3
    Administrator
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    As Mike says, until a root method is available, you are stuck - unless you unlock & void your warranty...

    PLEASE Search for existing threads before posting a new one. Thanks.

    Your opinion matters. But should you disagree - please try not to be disagreeable

    Forum guide - here ~~ T100 FAQs - here ~~ Cold boot - here

    Adobe Flash Player & Browser Guide here

    Master Help Guide - here ~~ FAQ malware - here ~~ FAQ e-reading - here
    Android device personal pantheon...
    SGS; Huawei Y300; Motoroloa Razr; CnM Touchpad II; Asus TF101; Lenovo A1; Motorola Xoom 2 ME; Samsung Tab 2 7.0

  4. #4
    Soundwave
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    Quote Originally Posted by MikeM View Post
    It can't be done without rooting & flashing.

    Moved to Jelly Bean.
    Do you mean "Without unlocking bootloader, installing CWM 9 or the like) and flashing"?

  5. #5
    Ratchet
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    41284
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    Re: Downgrading Firmware Assistance Questions TF300T

    Did you not have Voodoo Root Keeper installed?
    I have upgraded mine OTA and have kept root.

    Bill

    Sent from my ASUS Transformer Pad TF300T using Tapatalk 2

  6. #6
    Soundwave
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    Quote Originally Posted by Maniac_au View Post
    Did you not have Voodoo Root Keeper installed?
    I have upgraded mine OTA and have kept root.

    Bill

    Sent from my ASUS Transformer Pad TF300T using Tapatalk 2
    Oh yeah I i do. It says rooted after i restore root but the 2 middle check boxes are unchecked and SU and Root File Explorer tells me I need root...... frustrating at the least.

 

 

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