Stuck Pixel Fixer: Flash Colors Over a Stuck Pixel Online

Return and warranty checklist

Wiped the screen with a dry microfiber cloth (dust looks like a dead pixel)

Set the display to its native resolution and the browser zoom to 100%

Checked every color in a dim room, looking straight at the screen

Marked each defect so the count and position are on record

Photographed each defect: one close-up and one wide shot showing where it is

Checked the store’s return window and the manufacturer’s pixel policy

Tried the stuck pixel fixer on any colored (stuck) pixels

Your ticks and notes are included when you copy or download the report.

Stuck pixel fixer

Places a square of rapidly changing random colors over a stuck pixel to try to unstick it. It can help with stuck (colored) pixels; it can’t revive dead (black) ones.

To put the square right on the pixel, run the test below first and mark the dot with M: its row in the defect list gets a Fix button. Without a mark, the square starts in the middle of the screen and you drag it over the pixel.

Photosensitive epilepsy warning

The fixer shows rapidly flashing colors, which can trigger seizures in people with photosensitive epilepsy. Don’t use it if you, or anyone who can see the screen, has epilepsy or has ever had a seizure. Don’t stare at the square while it runs: start it, then look away or leave the room. Stop right away (press Esc) if you feel dizzy or sick, get a headache, or notice twitching or changes in your vision.

I’ve read the warning and want to use the flashing fixer

Run for

This page opens with the stuck pixel fixer first and the dead pixel test under it. The fixer puts a small square of colors that change on every frame over the stuck pixel. Switching a sub-pixel on and off very quickly sometimes frees one that’s stuck in one state. It’s a try, not a repair: it can work on a stuck pixel and does nothing for a dead one.

Is it stuck or dead?

Run the test below first, through black, white, red, green and blue:

A colored dot (red, green, blue, cyan, magenta or yellow) that stays the same on several colors is a stuck pixel, one or two sub-pixels stuck on. This is what the fixer is for.
A black dot on every bright color is a dead pixel or sub-pixel. No fixer will bring it back.
A white dot on black is a whole pixel stuck on, often called a hot pixel. It’s worth a fixer run too.

A dot that moves when you wipe the screen, or looks different from an angle, is dust on or under the glass, not a pixel.

How to run the fixer

In the test, press M (or tap Mark defect) and click the dot. Leave the test with Esc: the dot is now in the defect list with a Fix button.
Read the photosensitive epilepsy warning in the fixer panel and tick the box. If you or anyone in the room has epilepsy or has had a seizure, don’t use it.
Choose how long it runs (10 minutes is a good start) and press Fix next to the dot. The square opens centered on it and starts at once, in full screen if you marked it in full screen. Without a mark, press Open the stuck pixel fixer and drag the square over the pixel.
Look away or leave the room while it runs. The timer only counts while the tab is in front, and the square stops when the time is up; Esc stops it early.
Run the test again on black and white to see if the dot changed.

If it doesn’t clear

Try one or two longer runs. After that, the pixel is unlikely to change with any fixer. Don’t press or rub the screen: Dell’s display pixel guidelines warn that pressure can crack the screen or damage its internal parts and that fixing pixels yourself may void the warranty, and Dell says pixel-fixing software isn’t officially supported and may not work (as of October 2026). The safer route is the store’s return window or the maker’s pixel policy. Copy the report with the dot’s position for your claim, and check your brand’s limits on the Dell, HP, Lenovo or ASUS pages.

Frequently asked questions

Does a stuck pixel fixer actually work?

Sometimes, for stuck pixels: a dot that stays red, green, blue or a mix of them. Rapidly switching the sub-pixels can free one that is stuck, but there's no guarantee, and many never recover. It can't do anything for a dead pixel, one that stays black on every color.

How long should I run the fixer?

Start with 10 to 20 minutes, then look at the dot on black and on white. If it changed but didn't clear, run it again for longer. If an hour in total does nothing, the pixel is unlikely to recover this way.

Is it safe for my screen?

Changing colors are ordinary content for a screen. Pressing or rubbing the glass is the risky part: Dell warns that applying pressure can crack the screen or damage internal components and that do-it-yourself fixes may void the warranty, and it says pixel-fixing software isn't officially supported by Dell and may not work.

Why is there a flashing warning?

The square changes color on every frame, far more than the three flashes a second that the W3C's accessibility guidelines set as the limit for content anyone may see. That can trigger seizures in people with photosensitive epilepsy, so the fixer stays locked until you tick the warning, and you shouldn't watch it run.

Should I try the fixer before returning the screen?

Check the return window and the maker's pixel policy first. If the screen is new and the store takes it back, a return is the surer fix. Note the pixel's position in the report before you try anything, in case you need it later.

Defects you marked 0

Return and warranty checklist