Tools · Open source

Bad Pixel Detector

Check your device on pixel failures by plain screens in 8 colors, black & white

Opens the official F-Droid page

About Bad Pixel Detector

Check the screen for existence of so-called "dead pixels". So called bad and

defective pixels are defects of the electronic device which is perceiving or

reproducing the image and having pixel structure. A more detailed explanation is

in Wikipedia . Also see the

ISO_13406-2 standard for more

information.

Tap Download — the app's official page on F-Droid opens.
Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
Open Bad Pixel Detector from your app drawer.