Found a way to restore lost drm keys

[unixseb]

Mod edit by @gregbradley
Thread closed as this does not work
http://forum.xda-developers.com/showpost.php?p=62229123&postcount=5



Hi guys,
i've finally found a way to really restore the DRM keys on my z3 phone.
now my camera is working fine at low light, and all drm enabled features are working.

the trick : just reinstall the official firmware using sony xperia flashtool (the official one from sony, not the one to flash tft files from Androxyde), and it will reinject some drm keys int the TA partition, these are not your original drm keys, but fresh ones. anyway, it is the only method i've found to restore all the functionnality of my phone after unlocking my bootloader.
you can find sony flashtool here : http://developer.sonymobile.com/downloads/tool/flash-tool-for-xperia-devices/

PS: be warned it wil factory reset your phone, erasing all datas on it except on sdcard (internal memory is wiped too).

 

[evildog1]

Cool but how about Z3 compact and which frimware? kitkat or lollipop?

 

[gregbradley]

This does not work.
Read here in the faq from Sony http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/

 

[unixseb]

well, that's strange, sony says it don't restore the keys, but now i've done this, my camera is working back to normal (no noise at low ligh conditions, x-reality mode working and so on)
maybe i'm mistaking, but it seems my phone is back to "original" state.
(Z3 with 5.1.1)

 

[unixseb]

You're right ! That was placebo compared with un unlocked one. Can you delete the post ?

 

[gregbradley]

Thread closed at op request