Dead Pixel or Stuck Pixel? How to Check
Inspect a clean screen using black, white, red, green and blue full-screen colors. A consistently dark pixel differs from a pixel stuck on one color.
Before you begin
Start with reversible settings checks. Keep your device supported and powered safely. Do not force connectors, open sealed batteries or try high-voltage repair steps.
How to troubleshoot the problem
- 01
Identify the symptom
Reproduce the problem and note whether it happens in one application or across the whole device.
- 02
Check the basic settings
Inspect a clean screen using black, white, red, green and blue full-screen colors. A consistently dark pixel differs from a pixel stuck on one color.
- 03
Compare another application or device
Use a second compatible app, browser or device to narrow down whether the issue follows the hardware.
- 04
Retest before changing more
Avoid pressing or rubbing the screen, which can cause damage. Check warranty policies before attempting repairs.
Check the result.
Avoid pressing or rubbing the screen, which can cause damage. Check warranty policies before attempting repairs.
Open the related test ↗When to get professional help
If the same problem occurs in multiple compatible applications or devices after safe checks, follow the manufacturer's exact support instructions or ask a qualified repair professional. A browser test cannot prove every hardware component is healthy.