Share your experience!
My Xperia V all of a sudden is not responsive to touch in the middle area of the fone. So I had to change my password and I end up deleting things, because of the unresponsiveness of the fone.
Test your phone with
https://play.google.com/store/apps/details?id=com.sonymobile.androidapp.functiontester
it would be wise to contact your local Sony Xperia Care center
http://www.sonymobile.com/global-en/support/contact-us/
