Relock my Xperia Z1

[rstulajter]

Der all,

i have one question, i lost my TA backup an i want relock my Z1.

My question is, if i use sony tool (below), my DRM keys will by restored?

Thanks

Robert

http://developer.sonymobile.com/services/flash-tool/

[Uliwooly]

Your DRM keys are gone. 

[Thommo]

To add the program you mentioned will not relock your bootloader, for that use Flashtool and click on BLU and follow the guide and as Uli said without your TA partition backup then your DRM keys are lost

[Fathurwalker]

I have a sony xperia z1 c6903, I have unlockbootloader my smartphone, but I do not back up the data drm, how do I can restore my smartphone as when first purchased, please help!