- 1. Clean your computer screen
Make sure your screen is almost perfectly clean and does not have any dust or dirt that you may mistake for a dead pixel.
- 2. Launch our dead pixel test
You will be able to run through several colors by clicking on the screen, and press
ESCto exit our program. - 3. Carefully inspect your screen for dead pixels
If any dot on your screen is not displaying the color that the rest of your screen is showing, this could be a dead pixel or a stuck pixel.
If you are using a mobile phone, please close the vertical direction lock of the phone, and use it in horizontal mode.