I have rooted my xperia U phone and flashed a custom ROM. Everything went fine.
But now, 2 days after that, I have trouble with the phone app.
I can't accept calls (the app freezes) and can't call someone really, since the screen doesn't change into the "phone mode". So I choose f.e. someone in my recent calls, press to call, but I don't see if the person gets really called, since I don't see the screen with the "end call" button etc.
Also it makes no sounds. But the callled person is getting the call, so that he can answer.
After 10 seconds I see this "phone mode", but it's really a huge problem.
I hope you can help me to solve it.