4.4.4 21.11.21 is not downgradable???

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CrazyRussianXDA

Senior Member
Dec 29, 2010
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I have a consumer edition Maxx (not Dev) with bootloder unlocked via Chinese guy. I was messing with 4.4.4 and decided to go back to 4.4.0 (12.6.3), fired up RSD Lite but ... could not because:

downgraded security version
update gpt_main versin failed
preflash validation failed for GPT

Can someone confirm that 4.4.4 (21.11.21) is not downgradable to even 19.6.3.
 
Topsnake

Topsnake

Senior Member
Jan 30, 2011
1,077
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CrazyRussianXDA said:
I have a consumer edition Maxx (not Dev) with bootloder unlocked via Chinese guy. I was messing with 4.4.4 and decided to go back to 4.4.0 (12.6.3), fired up RSD Lite but ... could not because:

downgraded security version
update gpt_main versin failed
preflash validation failed for GPT

Can someone confirm that 4.4.4 (21.11.21) is not downgradable to even 19.6.3.
Click to expand...
Click to collapse

javed91214 said:
anyone who got success on downgrade droid ultra ?
Click to expand...
Click to collapse

It's not possible as of now. The bootloader wont run the software for some reason. Just boot loops. Havent put much work into it though.
 
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Deleted member 5438687

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You have to remove few lines of code from the xml file.
I have seen a guy who removed 4 lines of code from the xml file and got success to downgrade with unlocked boot loader
 
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    Topsnake
    Topsnake
    CrazyRussianXDA said:
    I have a consumer edition Maxx (not Dev) with bootloder unlocked via Chinese guy. I was messing with 4.4.4 and decided to go back to 4.4.0 (12.6.3), fired up RSD Lite but ... could not because:

    downgraded security version
    update gpt_main versin failed
    preflash validation failed for GPT

    Can someone confirm that 4.4.4 (21.11.21) is not downgradable to even 19.6.3.
    Click to expand...
    Click to collapse

    javed91214 said:
    anyone who got success on downgrade droid ultra ?
    Click to expand...
    Click to collapse

    It's not possible as of now. The bootloader wont run the software for some reason. Just boot loops. Havent put much work into it though.
    View

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