Touch Screen Test

How to test your touch screen

1. Pick Coverage grid to look for dead zones, or Multi-touch drawing to see how many fingers your screen tracks at once.
2. Press Start touch test. On most phones the test fills the whole screen.
3. For the grid: slowly swipe over every square until it fills in. Go over the edges and corners too; that is where damage usually starts.
4. Squares that stay empty after a few slow passes are spots where touch does not register.
5. Tap Done (or press Esc) to see your result and a map of any empty squares.

What your result means

• Every square filled in: the touch layer responds across the whole screen.
• A few scattered empty squares: usually just missed. Try them again slowly.
• A line or block of empty squares: that area does not register touch. This often follows a crack, a drop or water damage.
• Fewer touches than fingers in the drawing test: the screen or the system limits how many touch points it tracks. Most phones track 5 or 10.

Before you book a repair

1. Restart the phone. A frozen app or system process can stop touch input until a restart.
2. Remove the case and screen protector, then test again. Bubbles or a protector edge can block touch near the borders.
3. Dry your hands and the screen. Water and sweat confuse the touch layer.
4. Install pending system updates.
5. If the same squares still stay empty, the touch layer or the display is likely damaged, and a repair shop or the manufacturer can confirm it.

The test runs in your browser. We do not record where you touch or send anything to a server.