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Please read this if you considering unlocking the boot loader or rooting your phone.

Important information

Please note that you may void the warranty of your phone and/or any warranty from your operator if you unlock the boot loader. You should only unlock the boot loader of your phone if you are an advanced user with good knowledge of the technology and risks involved.

For more information go here http://unlockbootloader.sonymobile.com/

Please also note

The Sony Xperia support team will not be able provide any support, related to unlocking the boot loader or rooting your phone.

We also recommend you to read the below blogposts.

http://developer.sonymobile.com/wp/2011/03/29/unlocking-the-boot-loader-in-the-new-xperia%e2%84%a2-smartphones/

http://developer.sonymobile.com/wp/2011/04/14/option-to-unlock-the-boot-loader-now-available-for-advanced-developers/

http://developer.sonymobile.com/wp/2011/09/28/sony-ericsson-supports-independent-developers/

Best regards
Sony Xperia support team

Relocking bootloader help

Emperor
Message 11 of 19
1,339 Views
Message 11 of 19

Re: Relocking bootloader help

@clemprecht

 

The DRM keys are gone once you unlock the bootloader and can't be restore 




"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Rookie
Message 12 of 19
1,334 Views
Message 12 of 19

Re: Relocking bootloader help

Well, if they're gone I might have got new ones from restoring with emma. I couldn't record videos with sonys camera app due to (at least I assume so because I couldn't find another explanation) missing DRM keys but after restoring the rom everything works again. The netflix app didn't work either but works after the restore. OTA updates didn't work either but work after the restore and relock. If you can tell me another explanation I'd be grateful.
Emperor
Message 13 of 19
1,329 Views
Message 13 of 19

Re: Relocking bootloader help

@clemprecht

 

you probably only relocked the bootloader but not restored the DRM keys, are you able to use Xperia Lounge? how about xreality?




"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Rookie
Message 14 of 19
1,326 Views
Message 14 of 19

Re: Relocking bootloader help

Both work fine as far as I can tell. Can watch the videos, listen to music and take part in the competitions in Xperia Lounge and can turn xreality on. Don't see any difference though
Emperor
Message 15 of 19
1,319 Views
Message 15 of 19

Re: Relocking bootloader help

@clemprecht

 

turn up brightness 100% > select a picture > take a screenshot > turn off bravia engine > take a screenshot of the same picture > compare the pictures. 

 

If you don't see any difference then the Bravia engine is not working




"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Rookie
Message 16 of 19
1,311 Views
Message 16 of 19

Re: Relocking bootloader help

You're right. There's no difference so I assume xrealty is not working. Furthermore when I restart the phone xreality is on 'off' even if it was on 'on' before. Would be interesting to know if that's the only feature that is not working or if there's more. I don't own an ps4 so I can't verify if Unxperia's problem would be resolved.

Thanks for your help and patience @uliwooly

Emperor
Message 17 of 19
1,302 Views
Message 17 of 19

Re: Relocking bootloader help

@clemprecht

 

Anytime




"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

One time poster
Message 18 of 19
420 Views
Message 18 of 19

Re: Relocking bootloader help

Hi I have same issue how relock and restore dms keys

 

Enthusiast
Message 19 of 19
338 Views
Message 19 of 19

Re: Relocking bootloader help

Not possible.

Dont buy Xperia Phones if you want to flash or root your Phone. Drm Keys will be deleted permanently after bootloader unlock and can not be restored. There are some methods of backing them up but there is no official way. Sony does this for years but they wont change. Or will they?