Screen Dead Pixel Checker – Detect Dead Pixels on Android

How It Works?

🔹 The tool will display full-screen solid colors (black, white, red, green, and blue).
🔹 Users can manually switch colors to inspect their screen.
🔹 Dead pixels will be visible as spots that don’t change color.

How to Use the Tool?

1. Click the Start Test button.
2. The screen will turn black—check for any stuck or dead pixels.
3. Tap the screen to cycle through white, red, green, and blue backgrounds.
4. If any area of your screen doesn’t change color, you may have dead pixels.
5. The test will exit automatically after the last color.

What is a Dead Pixel?

A dead pixel is a tiny black dot on your screen that does not turn on when needed. It happens when a malfunctioning pixel stops working, leaving a permanent black dot that does not change with the rest of the display. You may notice it when watching videos, playing games, or simply using your device. A dead pixel is different from a stuck pixel, as it does not show any colors at all.

To check if your device has dead pixels, you can use a Screen Dead Pixel Checker tool. This tool displays solid colors like red, blue, and green, helping you identify individual pixels that do not function properly. If a pixel remains black regardless of the background, it is most likely a dead pixel.

What is the Difference Between Dead Pixels and Stuck Pixels?

Many people confuse dead pixels with stuck pixels, but there is a difference between them. While a dead pixel remains a black dot, a stuck pixel is a malfunctioning pixel that gets blocked on a specific color. This happens when one or more of its sub-pixels—red, blue, or green—fail to change. For example, if a green sub-pixel is stuck at 100%, you might not notice it on a white full screen, but it will appear as a green dot on a black image.

A stuck pixel may display the right color on some images but look like an odd bright spot on others. The good news is that stuck pixels have a higher chance of being fixed compared to dead pixels. There are techniques available that may help, such as flashing rapid changing colors on the screen or gently massaging the area.

I Have Dead Pixels on My Screen, What Can I Do?

If you discover dead pixels on your screen after using a test, the first step is to check your warranty conditions. Many manufacturers and sellers have policies for replacing screens with defective pixels, depending on how old your device is. Some organizations may offer a screen replacement if you meet their criteria.

If your warranty does not cover it, you can try a dead pixel fix tool. Websites like DeadPixelTest.org offer tools that display changing colors at a high refresh rate to help revive stuck pixels. While this method may not always work for dead pixels, it is worth trying before considering a full screen replacement.

Frequently Ask Questions