Screen not responding

[Kimberley994]

Smashed screen and after repair touch is not responsive and sometimes presses buttons on its own

[Uliwooly]

Did you repaired the screen or an authorized Sony Xperia Care?

[Phy]

take it back to a Sony Xperia Support near you.

[Phy]

this is how to contact Sony Xperia Support, just in case you need the link
http://support.sonymobile.com/global-en/contactUs/