Display keeps turning off

[jimmen]

why does my xperia z1 keeps turning off the display when im making a phonecall and have to push 2 times at the on off buttom to see the display menu?         best regards jimmy

[Danial-mach1]

can you elaborate more?

when you making call proximity sensor will engage..then if you take phone near your face or cover proximity sensor then screen goes off until sensor is covered..is it your problem?

[_alexdon_]

Danial is right,the proximity sensor is active during the call,maybe you are covering it somehow.