Phone Display Test — Complete Screen Diagnostic

A dead pixel is permanently off (appears black). A stuck pixel is stuck on one color — red, green, or blue. Dead pixels usually cannot be fixed with software. Stuck pixels can often be repaired with the built-in rapid color cycling repair tool.

Go to the Burn-in tab and display a solid grey screen. Look for faint ghost images of your status bar, keyboard, or frequently-used app icons. Burn-in appears as permanent shadows and is most visible on mid-grey backgrounds.

Backlight bleed is light leaking from the edges or corners of an LCD screen, visible on dark backgrounds in a dark room. Some bleed is normal on LCD panels, but excessive bleed may indicate a manufacturing defect.

The touch grid divides your screen into cells. Touch every cell to verify the entire screen responds. Untouched cells are potential dead zones. The multi-touch test shows how many simultaneous touches your screen supports.

The repair tool rapidly cycles colors at 60 frames per second, which can fix stuck pixels in approximately 60% of cases. Position the repair window over the stuck pixel and run for 10–20 minutes. Dead pixels (permanently black) cannot be fixed with software.