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Make sure to backup your DRM keys before unlocking your phone! [duplicate]

asked 2017-10-12 17:43:43 +0300

pinvok3 gravatar image

updated 2017-11-13 12:11:39 +0300

JoHe gravatar image

Jolla and Sony states that after unlocking your phone some functions will be disabled. The reason is unlocking your phone will remove some DRM keys from your phone irretrievably.

If i recall correctly this will have impact on your camera quality and object recognition (object tracking) and other functionality. It will have impact on SafetyNet which is Androids API to detect changes on the system which includes rooting. Snapchat wont work when SafetyNet fails, Netflix won't show up on the Playstore and might not function in the future when they decide to.

Sadly this is not so easy as you need to extract the DRM keys with the Dirtycow exploit that only works on Android 6. This means downgrading the phone to Android 6, backup the DRM keys, flash your phone to the newest stock ROM, and flash SailfishX afterwords.

FoxTheLegend wrote an easy HowTo Guide on XDA Developers: https://forum.xda-developers.com/xperia-x/how-to/guide-one-noob-friendly-guide-xperia-x-t3590476

A German guide is to be found here: http://sailfishmods.de/2017/07/howto-sony-xperia-x-teil-1-cda-drm-keys-bootloader/

It does not include the SailfishX flash, but the rest of it.

You might want to check it out, as you may regret it in the future. Afaik there is a Kernelhack to enable the DRM functionality again, but this should trigger Safetynet and I couldn't get Magisk to run on my Xperia X.

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The question has been closed for the following reason "duplicate question" by JoHe
close date 2017-11-13 12:11:28.843630

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The process is a PITA and I gave up after several unsuccessful attempts. I'd rather get another Xperia X, or better yet another phone, should I need to use Android.

Giacomo Di Giacomo ( 2017-10-12 17:49:53 +0300 )edit

It's German. But I'll add it to the post anyway. :)

pinvok3 ( 2017-10-12 17:52:26 +0300 )edit
2

Why would anyone ever go back to Android from SailfishOS? :)

Venty ( 2017-10-12 18:03:02 +0300 )edit

talk.maemo.org has references to this as well

Jurop ( 2017-10-12 19:50:33 +0300 )edit

If the Android 6.0.1 Marshmallow isn't available from the official Sony downloads anymore, here's an alternative source.

Currently, there are very few 34.0.A.x.yyy versions left that the XperiFirm can find.

DrYak ( 2017-10-13 00:08:01 +0300 )edit

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answered 2017-10-12 18:34:23 +0300

carepack gravatar image

updated 2017-10-12 18:35:05 +0300

@pinvok3 it includes the flash process. 3 parts. only windows missing

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Asked: 2017-10-12 17:43:43 +0300

Seen: 1,178 times

Last updated: Oct 12 '17