For some reason when clicking with stylus, it hits the wrong place. With Sketch you can see this best when picking line tool and drawing with it. The line comes out 1-2 mm off from the place of stylus.

I have tried calibrating screen several time on both new and old firmware but it doesn't seem to do anything. Even if I click somewhere far away from those little circles it doesn't seem to affect at all.

So should I get this to service or does someone have any idea what could be done?