Problems making phone calls

[erpittave]

Hi everybody. I've bought my phone ten days ago and I've installed all the software update with Sony Update Service and/or PC Companion. When I make a phone call the screen goes black after 30 sec (in Display settings) and wont light up again until the call is finished. So if I had to tap any numbers I can't do it. I had to wait that phone call finish then push the button on the right side to go to home page. This is not a good functioning. Please help me!! Thank's in advance

[_alexdon_]

You should go for a software repair with the same programs.You know that while in a call,if the proximity sensor is covered,the screen is shut down,right?

[erpittave]

I know, It should shut down when i move it near my ear (All smartphones have this function if i'm not wrong). Does this sony xperia doesn't have this option or there's a way to make it work?

[Uliwooly]

Test your proximity sensor, there might be something covering, a protecting film, case or grime, etc 

[_alexdon_]

Dial *#*#7378423#*#*,service tests,proximity switch.See if when you cover it,you get yes.If you get yes all the time,there is something wrong with it.

[erpittave]

I tried to do  the test and it looks OK. The proximity test, at the start, was off, then, when I approach my finger to the phone it says ON. Now I make a test call to see if it actually works...

[_alexdon_]

Ok,keep us updated.

[erpittave]

It doesn't work, and now i can't do anything because the screen is completely black, even if i can still hear the voice of the secretariat saying if I want to send an oral text or retry to call etc. What is this problem due to?

[_alexdon_ · Accepted solution]

The screen turning off completely has been seen in other xperia devices.Attempt a repair with sony update service or take the phone into service.

[erpittave]

Thanks so much for the help, hope to make everything works! I'll tell you if i'll be able to do something. Good night!