Stuck pixel fixer · RGB exercise utility

Wake the stuck pixel.

Rapid color cycling forces a stuck subpixel to switch state repeatedly, which sometimes releases it. Start the recommended 10-minute repair, click the colored pixel to position the repair area, then re-test. Results are not guaranteed.

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Pixel repair console / ready

Recommended repair

10-minute stuck pixel repair

Start immediately, then click or tap the colored pixel to place the flashing square over it. You can also drag the square at any time.

256 × 256 area Medium speed CRT signal noise

Free · Runs locally · Pause or exit any time

Advanced settings
R stuck on

Stuck is not dead. A colored dot on black may respond to cycling. A black dot on white is a dead pixel and software cannot repair it. Not sure? Diagnose it →

Safety channel / amber

Read before starting

  • ⚠ The flash area blinks rapidly. Do not use fast mode if you are sensitive to flashing lights.
  • This tool targets stuck pixels (colored dots on black). Success on truly dead pixels (black dots on white) is very unlikely.
  • Color cycling may help in some stuck-pixel cases, but results are not guaranteed. For a new device, a return or exchange is usually the better first move.
  • Do not press, rub, tap or heat the panel. Those techniques circulate widely, and they create new defects far more reliably than they fix old ones.

How it works — and its honest limits

A stuck pixel still receives power, but one or more subpixels are frozen in the on state. Cycling the area through rapid color changes forces those subpixels to switch repeatedly, which can free a stuck transistor. This only applies to stuck pixels: a dead pixel receives no power at all, so no on-screen pattern can affect it. Unsure which you have? Read dead pixel vs stuck pixel or run the two-minute check first.

Recommended routine

  1. Run the Dead Pixel Check and note the stuck pixel's position.
  2. Drag the flash area so it fully covers that position.
  3. Run a 10-minute session at medium speed.
  4. Re-test. Still stuck? Try one 20–30 minute session.
  5. No change after that: document it with a report and check your return window or warranty.

What we will not recommend

Search results for stuck pixels are full of advice to press the panel with a cloth-wrapped pen, tap the spot, rub it, or warm it with a hairdryer. We do not recommend any of it. The realistic upside is small, and the downside — spreading the defect into a cluster, damaging the polarizer, or voiding the warranty you were about to use — is not. Color cycling is the one software approach worth trying, and even that comes with no promises. More on how we decide what to claim.

What this test checks

  • Whether rapid color cycling releases a stuck subpixel
  • A movable flash area you can position over one specific pixel
  • A timed session so you can re-test at a known interval

Related tests

Dead Pixel Test

White, black, RGB and gray slides — the core check.

Dead Pixel Simulator

See what dead, stuck and bright pixels look like at real size.

Stuck Pixel Test

Black-first sequence built to make a stuck subpixel show itself.

Screen Color Test

Extended color set including cyan, magenta and yellow.

Not sure what you are seeing?

Run diagnosis

Save your observations

Create a report