Share your experience!
I don't know if it's the right place but i have to say something about the coming update for the Xperia Z1.
It will be really nice if in the Android L update the touchscreen problems will be fixed and the Camera thing with DRMkeys also.This phone is amazing abut the touchscreen issue it's really annoying and the Z1's camera it's fantastic but it needs some software improvement like in Z2,Z3. This is all i wanted to say.Thanks for attention 
I don't understand the problem you have with the camera and DRM keys - There was as some would say an issue where by the camera ceased working after the bootloader was unlocked but this was fixed - If you unlock the bootloader then for legal reasons to compicated to go into will be deleted however as this is a user led support forum what I can do is message the team to take a look at your post and then they will be able to escalate this to the correct team - So if you don't receive a reply from a Sony staff member please be reassured that they will have read your post