I go into dialler, choose number, then choose "call xxxxxxxxx" and then screen goes off whilst the call is being made.
No matter whether phone is flat on the desk or utpo my ear, makes no difference and it wont come back on!!!
Same when receiving calls. I swipe to accept, the screen goes off.
In both instances, the only time the screen comes back is when the other end hang up, then I have to press the power on to get back to the lockscreen.
Very bothersome, any ideas?