Smartphones’ displays sometimes experience what is called a “dead pixel” on their surface. The dead pixel looks like a black dot on the screen, or like colored dots on the screen.
There are a few causes that may lead to a dead pixel. First of all, it might be the case of a stuck pixel, and not a dead one. Sometimes third-party applications cause dead pixels on the screen. The last and worst case is when physical or liquid damage is causing the dead pixel issue.
How to fix dead pixels on Samsung Galaxy devices:
- The first thing that you could try is to remove the battery for 30 seconds while the device is still powered. After that replace the battery and restart the device. If you still have the dead pixel move on to the next step.
- Sometimes the dead pixel only appears on certain apps, so you will have to remove those applications completely from your device.
- If the problem is still there, perform a factory data reset.
- If the screen is still affected by dead pixels and you still haven’t managed to repair it, it means that the screen is damaged. You can visit a repair service and get your phone checked for further assistance.
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Here’s an example of how dead pixels look like:
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