Z3 Compact touch issue

[KaiWu]

My Z3C had upgraded to Android 5.1 one month ago.

Recently, its touch become abnormal.

The status bar will show when I don't touch or swipe from screen up to screen bottom.

Here is the video

Touch_issue.mp4

what happend to it ?

[Rickard]

I'm sorry to hear that

Looking at your video, the phone seems to be registering touch at the top right corner, above the clock which would explain why this happens.

I recommend that you first try to clean the display. If you have any screen protector, also try removing this.