Xperia E1 top screen upto 1 cm not working and touch become more hard

[Chits]

Hello, PLease solve my problem,

I have an Sony Xperia E1 with android kitkat. From last 5 days the upper part of screen not working and touch become more hard. when i open any app i have to tap 4-5 times on that app icon to open it.. i have done all that which is need to do i.e restart, reset, backup, factory reset, software update, repair through PC companion etc etc....but it didnt work  

Please suggest me any way to overcome with this problem bcz i dont want to take this to a retailer shop. 

[Uliwooly]

@Chits

You have to get your phone inspected at your local Xperia Care

http://support.sonymobile.com/global-en/contactUs/