A dead pixel is a small black square on the screen ... If your device doesn't have or support any browsers, try looking for pixel test/screen check apps on the Play Store or App Store instead.

A new monitor purchase isn't something that happens often. It's likely you're going through multiple PCs for each monitor ...

Other users have found dead pixels on the display. There are plenty of apps you can download which will fix the issue, like Dead Pixels Test and Fix. After the app has finished running its course it ...

A defective pixel on an LCD screen. Bad pixels are often transistors that are permanently dead and appear as black dots or permanently energized and show up as white or colored dots ("hot pixels").