Can I get some help with my Sony Z?

[MUSAP]

screen sony z

i have problem in the. screen it become blank when I'm calling.
My phone. Sony xperia z android. 4.4.4
I have to restart the phone after each call.
I want help guz ty

 

[B. Diddy]

Re: screen sony z

Welcome to Android Central! It's supposed to go blank if you hold it up to your ear while calling (to prevent your face from pressing any onscreen buttons). This is a function of the proximity sensor, which is right near the front camera. So if there's something else blocking it (like your finger, an ill-fitting case, or a dirty screen protector), the phone might think it's up against your ear during a call, and turn the screen off.

 

[NoEl surya]

Re: screen sony z

I guess there is a malfunction with the proximity sensor mate. Make a backup and install the ROM again. I mean flash your concerned FTF or do a factory reset by going to recovery.