How to use Touch Screen Test
- Tap Start touch test. The screen fills with a grid.
- Slide your finger slowly over every square, including the edges and corners.
- Tap the X in the corner to finish and see how much of the screen responded.
What causes dead zones?
A strip or patch that never turns green usually means damage to the touch layer, often after a drop, or a screen protector that has lifted or has an air bubble. Take the protector off and test again.
The test also counts how many fingers your screen can track at once. Put several fingers down together to see the most touch points your device supports.
Frequently asked questions
Does this work on laptops with touch screens?
Yes. It works on any touch screen, and you can also test with a mouse or stylus.
What are ghost touches?
Taps the screen registers when nobody is touching it. If squares turn green on their own, the screen may be damaged or a charger may be causing interference.
How do I exit the test?
Tap the X button in the top right corner, or press Esc on a keyboard.