Upper section of touch screen(about 30% area of top or icons/shortcut in top row) didn't work, usually happens after about 6 to 7 from last restarting and after restarting it starts working normally again.
Go to Service center ......
Service center is 120km far from me so would be little difficult for me to get there and also I don't think it's a hardware problem as I said after restarting it back to function normally
@Viky.gIf you think this is a software issue, can you reset your device once and check?
when receive latest security may18 update