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Bad Pixel Detector

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


Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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