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How to unlock bootloader - Sony xperia X
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juiceme
2017-09-13 , 10:36
Community Council | Posts: 4,920 | Thanked: 12,867 times | Joined on May 2012 @ Southerrn Finland
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I could not wait a week but powered on my shiny new F5121 for the first time now
(OK I did manage to hold and wait more than a week before doing so!)
But now I have few questions;
1.) my device seems to come with Nougat 7.1.1 preinstalled.
Now, to save the TA partition it is apparent that I need to downgrade this to 6.x in order to be able to use the tad-daemon workaround.
The question is; where to get a known-good Marshmallow image for my device? When I search the net I find numerous sites that allow download but how to know which are genuine?
2.) I am unsure how the downgrade is supposed to help; I understand that unlocking the bootloader destroys the DRM keys but how can I flash the downgrade image without unlocking the bootloader?
Or is there something special about "sony-signed" images that allow them to be flashed without bootloader unlocking?
3.) If the above is true, does the flashing process guarantee that I can only flash a real-sony-signed-image with locked bootloader?
If that is true, then I don't need to worry about where I download the image, right?
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