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Thread: Downgrade KitKat 4.4.2 to Jelly Bean 4.1.2 (WITHOUT root)

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  1. #1
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    Downgrade KitKat 4.4.2 to Jelly Bean 4.1.2 (WITHOUT root)

    Hey Guys,

    just to inform here:

    In spite of the new BL from 4.4.2 a downgrade to stock 4.1.2 is possible.
    I made it over Odin with firmware from sammobile ([ Login above or register to see download links. ]).
    Flashing Tutorial here:
    [ Login above or register to see download links. ]
    After auto-reboot tablet will stuck in routine and you need to enter Recovery-Mode an make fullwipe and deleting cache.

    Also 2 guys from other forum in Germany gone through this way successfully. All platforms GT-N8000!

    Until now me and the other two guys don't have any problems.

    **NOTE** There is no fully guarantee from me that it works in each case! But I wish good luck to everyone who is just as annoyed as me from update to 4.4.2!

  2. #2
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    If the downgrade was from the leaked 4.4.2,then this is probably because this repackaged and leaked firmware did not have a locked bootloader.
    The officially released India 4.4.2 may cause more problems with downgrading - but we will have to wait and see if it contains a locked bootloader.

  3. #3
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    Any idea if India downgrade is possible?

  4. #4
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    Quote Originally Posted by williamvivian [ Login above or register to see download links. ]
    Any idea if India downgrade is possible?
    No downgrade from 4.4.2 is possible (unless you have a network phone, and the network didn't update the modem file)

  5. #5
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    Quote Originally Posted by greenman [ Login above or register to see download links. ]
    No downgrade from 4.4.2 is possible (unless you have a network phone, and the network didn't update the modem file)
    True. I learned the lesson the painful way...

  6. #6
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    Here's how I downgraded to 4.1.2.
    After upgrading firmware with 4.2.2, get the device rooted via ODIN (CF-Auto-Root-p4noterf-p4noterfxx-gtn8000)
    Reboot device and SuperSU would report an error.
    Update SuperSU from PlayStore
    Get MobileODIN from the Play Store.
    Copy 4.1.2 firmware onto external SD (N8000XXCMJ2...)
    Launch MobileODIN and flash firmware from there.
    Bootloader remains locked though, but you'd have 4.1.2 up and running.

  7. #7
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    Quote Originally Posted by greenman [ Login above or register to see download links. ]
    If the downgrade was from the leaked 4.4.2,then this is probably because this repackaged and leaked firmware did not have a locked bootloader.
    The officially released India 4.4.2 may cause more problems with downgrading - but we will have to wait and see if it contains a locked bootloader.
    I didn't downgrade from leaked 4.4.2... My downgrade from official 4.4.2 DBT was also successfully in spite of new BL. I mean, didn't change BL with downgrade, just the firmware via Odin. And luckily the new BL from 4.4.2 works fine with firmware 4.1.2... that's what I wanted to inform about, because many think that it will not work, but it does! (At least in 3 oder 4 cases with german firmware.)

    There is always a risk, yes, but maybe, somebody doesn't like 4.4.2 just as me and needs an idea to go back without root, so that's the answer I want to give.

    (Sorry for bad english )

  8. #8
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    There is always a risk, yes, but maybe, somebody doesn't like 4.4.2 just as me and needs an idea to go back without root, so that's the answer I want to give.
    Thank you for your reply.
    All we have to do now is understand why?
    If the DBT N8000 4.4.2 firmware has a locked bootloader, then a downgrade should not be possible.
    If the DBT N8000 4.4.2 firmware does not have a locked bootloader then what you have discovered is as expected.


  9. #9
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    Tried this method and I can say it worked. Got back to 4.1.2 and I could use the corporate app that wouldn't work in 4.4.2... (I know I am losing warranty but...)

    One problem though: charging the device while turned off just gives me the image of the battery callibrating and it won't go off... Working on on a solution for it now.

  10. #10
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    Quote Originally Posted by J4m4cuc0 [ Login above or register to see download links. ]
    One problem though: charging the device while turned off just gives me the image of the battery callibrating and it won't go off... Working on on a solution for it now.
    I could not figure out what the problem was... The device locked while charging and it would not show the animated charging icon while using Android 4.1.2 (Official). I re-flashed it to Official 4.4.2 again and it is now fully operational.

    So much for this option...

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