iPhone Dead Pixel Test
Pinpoint dead, missing, or inactive pixels on iPhone OLED and iPad screens with high-contrast full-screen test fields.
Diagnostic Sequence Preview
This test automatically cycles through calibrated solid color surfaces.
What to Look For
High pixel density (460+ PPI) Retina screens make individual dead subpixels microscopic. Our dedicated iPhone dead pixel test projects clean solid colors to reveal any non-functional subpixels.
- Tiny black or dark dots against white, cyan, and yellow backgrounds.
- Missing subpixel elements in high-density text or status areas.
- Dark specks near screen edges or around the front camera cutout.
- Color distortion when viewing solid colors in portrait and landscape.
Display Preparation Tips
- 1Disable True Tone and Night Shift in iOS Settings.
- 2Turn display brightness up to 100%.
- 3Thoroughly clean screen glass to prevent mistaking dust for a dead pixel.
- 4Rotate between portrait and landscape to inspect all edges.
Frequently Asked Questions
How to tell if a dot on iPhone is dust or a dead pixel?
Surface dust can be wiped off with a cloth. If the dot remains stationary beneath the glass when viewing from different angles, it is a dead pixel or trapped panel debris.
Can iPhone dead pixels be repaired with an app?
Hardware dead pixels cannot be fixed by software. You should take the device to an Apple Authorized Service Provider if under warranty.
Ready to Check Your Screen?
Launch full-screen diagnostics right now to verify pixel health, backlight uniformity, and color fidelity across your entire display.
Start Free Screen Test