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4.4.4 21.11.21 is not downgradable???

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By CrazyRussianXDA, Senior Member on 16th July 2014, 03:51 AM
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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.
 
 
17th July 2014, 04:43 AM |#2  
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Apparently not.

http://forum.xda-developers.com/show...&postcount=561
Last edited by hayze; 17th July 2014 at 05:29 AM.
20th July 2014, 12:52 AM |#3  
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any luck for downgrade ultra?
anyone who got success on downgrade droid ultra ?
20th July 2014, 04:19 AM |#4  
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i dont think this would be possible atm.
20th July 2014, 07:15 PM |#5  
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Quote:
Originally Posted by CrazyRussianXDA

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.

Quote:
Originally Posted by javed91214

anyone who got success on downgrade droid ultra ?

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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21st July 2014, 03:21 AM |#6  
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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
Last edited by iAjayIND; 21st July 2014 at 03:27 AM.
21st July 2014, 03:31 AM |#7  
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That does not apply to 4.4.4. Been there done that
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