Share your experience!
Hi all,
I purchased a Z very recently and its been great until I discovered a black block covering 1/4 of the main camera screen at the bottom with the recording and camera button still visible. This area would usually be clear, showing part of the photo being taken. Also, when I attempt to switch the the front camera, the screen jumps right back on to the lock screen.
This only happens when I access the camera through the lock screen; when I use the camera from the menu it is fine.
I have already tried turning my phone on and off twice but it has not worked, anyone have any ideas on how to fix this?
1. Seetings > apps > all > camera > clear cache > restart your phone and try again
2. repair your phone with SUS or PCC (re-install the current update)
reason why you got that dot is a camera failure, i recived 3 dots my self on my xperia z but i had it sent to repair and they re-placed the camera part and since then dots are gone 
update nvm i miss read your message there xD thought you said you had black dot some where but you actually mean black box near buttons to right xD