Share your experience!
Hi,
I got a new Xperia U phone, and i'm facing an issue;
when i call someone the screens become black, and sometimes i'm not able to enable the calling options;
i press home button or power button but the phone is not reponding;
Has someone faced this issue?
Thanks
The screen turn black while calling to avoid misclick with your cheek (english for "joue" ? ).
But it should turn on if you click somewhere. Did you turn on option to "end call with power button" maybe.
i also face similar issue at times.. and phone becomes slow.. 
Sorry to hear of your issues. I would suggest a software repair on the phone. This can be done via the PC Companion or the Update Service.
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