How to self-check broken pixels on a Xiaomi TV: the complete guide

Broken pixels on a Xiaomi TV screen are a problem that even new device owners face: These defects manifest as constantly burning or “dead” dots that spoil the picture and annoy when viewed. Unlike temporary artifacts (such as hanging pixels after a long time), broken pixels are a physical defect of the matrix that does not disappear with time.

Checking for broken pixels is especially important when buying a used TV or after transporting the device. Manufacturers, including Xiaomi, allow for a limited number of defective pixels (usually up to the point of the device). 3–5 If you have more than one million dollars, you will be able to get a return on your warranty. TV 4A/4S, 5X, Q2, Q1E and others, using embedded tools, third-party programs and even mobile applications.

Important: broken pixels are often confused with the hung ones (which can be overclocked software) or the dust under the protective glass, and we will learn how to distinguish them from each other and what to do in each case.

1.What are broken pixels and what do they look like

A broken pixel is a faulty element in the matrix that has stopped correctly displaying color.

• 🔴 «Burning pixels – constantly glowing red, green, blue or white, regardless of the image.
• ⚫ «Dead pixels are always black, do not respond to a signal (most often occur on the Internet). OLED-matrix).
• 🟢 Hanging pixels – “stuck” on one color, but can recover (for example, after overheating).

On Xiaomi TVs with VA- or IPS-The most common matrices are burning pixels, while on OLED-models (e.g. Mi models) TV Q2 55) are predominantly dead, the defect is usually less than 1-2 mm in size, but on a monochromatic background (for example, when watching movies with dark scenes), they are striking.

How do you tell a broken pixel from dirt or scratches? Swipe your finger across the screen (turning off the TV!): if the dot stays in place, it's a matrix defect. Also, broken pixels are visible against any background, whereas dust or glare depends on the angle of view.

Preparation of the TV for inspection

Before testing, follow a few steps to ensure that the results are accurate:

1. Turn off the TV and let it cool for 10-15 minutes (a heated matrix can distort colors).
2. Wipe the screen with a microfiber wipe without alcohol to remove dust and prints.
3. Make sure there is no bright sunlight in the room – it creates glare that masks defects.
4. Connect the TV to the power source directly (without extension cords) to avoid power surges.

For Android models TV (Like Mi. TV 5X) It is recommended to disable all automatic image settings:

Settings → Display and sound → Picture → Image Mode → Select “User”

This will turn off dynamic brightness and contrast adjustments that can hide defects.

Remove glare and lighting|Clear the screen|Turn off auto-image settings|Connect to a stable diet-->

⚠️ Warning: Do not use paper wipes or fabrics with pile to clean the screen - they scratch the protective coating. Also avoid aerosol cleaners: their vapors can penetrate the body.

3. Method 1: Built-in tests on Xiaomi TV

Most Xiaomi TVs have a hidden service menu with matrix tests.

1. Turn on the TV and go to any channel or menu.
2. On the remote, press sequentially: Menu → Settings (cogs) → All settings → About the device → Click 5 times on "Television Model"
3. You can open the Factory Menu menu, select Panel Test or Screen Test.

The following tests are available in the service menu:

Perform each test for at least 10 seconds, carefully examining the screen from a distance of 30–50 cm. Broken pixels will be visible as contrast points. For convenience, use a magnifying glass or photograph the screen on the phone with a magnification.

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If the service menu does not open, try an alternative combination: hold Menu on the remote control. + Volume Down 5 seconds.

4. Method 2: Use of USB-flash drives

If the service menu is not available or you are afraid of damaging it, you can upload special test images to the TV.

1. Download the archive with test pictures (format) JPG or PNG, permit 3840×2160 for 4K-model).
2. Unpack the files for empty. USB-flash drive (formatted in FAT32).
3. Connect the flash drive to the TV and open the images through the Gallery or File Manager.

The archive should contain files with monochromatic colors:

• 🟥 red.jpg - red background
• 🟩 green.jpg - green background
• 🟦 blue.jpg - blue background
• ⚪ white.jpg - white background
• ⚫ black.jpg - black background

View each image in full screen mode (Zoom button on the remote), the broken pixels will be visible as dots of a different color, for example, on a red background, green or blue defects are clearly visible.

⚠️ Note: Do not use compressed images (e.g., from the Internet at low resolution); compression artifacts can simulate broken pixels; optimal file size is 5-10 MB.

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USB-The test is suitable for all Xiaomi models TV, including the old ones TV 3/4), service-menu.

5. Method 3: Online tests through the browser

If your TV is connected to the Internet, you can use online services to check, which is a method that is convenient for Android models. TV (Like Mi. TV Q1E), where there is a built-in browser Google Chrome or TV Bro.

Open your browser and go to one of the sites:

• 🌐 JScreenFix – tests for hanging and broken pixels with the ability to “overclock” defects.
• 🌐 Lagom LCD Test – a set of tests to test the matrix, including gradients and monochromatic fills.
• 🌐 TestUFO – checking for artifacts and broken pixels in dynamics.

On JScreenFix, select the Dead Pixel Test section and check the screen consistently in all colors.

1. Increase the page to 100% (Zoom button on the remote).
2. Turn off all notifications and browser toolbars (Fullscreen mode).
3. Look at the screen from different angles – some defects are only visible from a certain angle.

Important: Online tests may not show dead pixels on the OLED-In this case, use physical tests with the help of the matrices due to the peculiarities of the technology (pixels are simply turned off). USB-flash-drive.

Method 4: Mobile applications for verification

If you have an Android or iOS smartphone on hand, you can use it as a test signal source, which is suitable for TVs that support Miracast, AirPlay or other devices. HDMI-entrance.

Install one of the applications:

• 📱 Dead Pixels Test and Fix (Android) – generates monochromatic colors and test patterns.
• 📱 Screen Test (iOS) – Checking for broken pixels, gradients and color distortions.
• 📱 TV Pixel Test (Android) – a specialized application for TVs with support for screen duplication.

To transmit the image to the TV:

1. Connect your smartphone to the same Wi-Fi network as your TV.
2. On your TV, activate Miracast (Settings → Connection and Sharing → Wireless Display).
3. On your smartphone, turn on Screen Broadcast (in the notification curtain or connection settings).
4. Launch the application and select test modes.

The advantage of this method is that it can be dynamically verified, because some broken pixels only show up when you change the picture. TV 4S s VA-The defects can be noticeable only when switching from a dark background to a light one.

7. Method 5: Professional PC Programs

For the most accurate diagnosis, connect the TV to the computer through HDMI This method is recommended if you suspect hidden defects (e.g., subpixels that are weakly visible to the naked eye).

Popular programmes:

Instructions for IsMyLcdOK (the easiest option):

1. Download the program from the official website and unpack.
2. Connect the TV to the PC via HDMI (Select it as the main display in Windows settings: Settings → System system → Display).
3. Launch IsMyLcdOK.exe and press keys 1–9 to switch tests: 1 – red screen 2 – green screen 3 – blue screen 4 – black screen (to check for backlight) 5 – white screen

For models with resolution 4K (Mi TV Q2 75") Make sure that the Windows settings have the correct resolution (3840×2160), Otherwise, the tests will be inaccurate.

8 What to do if you find broken pixels

What you do depends on the number and type of defects you find.

• 🔄 1-2 bit pixels – if the TV is guaranteed, contact Xiaomi service center. the manufacturer can replace the matrix under the loyalty program (even if the number of defects is within the norm).
• 🛠️ 3-5 pixels is the normal norm for most matrices, and you can try to overclock them using programs like JScreenFix (effective for hanging pixels).
• ❌ More than 5 pixels or clusters are a clear reason to return or replace under warranty.Photograph the defects and go to the store with a check.

For "overclocking" of the hung pixels:

1. Open the JScreenFix website on your TV.
2. Select Fix Stuck Pixels and drag the flashing square to the defective area.
3. Leave the test to work for 10 to 30 minutes. If the pixel comes alive, it will disappear.

Importantly, this method only works for pixels that are suspended, and physically broken (dead or burning) cannot be fixed.

⚠️ Note: Some "masters" suggest "fixing" broken pixels by physically pressing the matrix. This is guaranteed to damage the screen and deprive you of warranties. Xiaomi does not repair pixels, only replaces the entire matrix.

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If you bought the TV less than 14 days ago, you have the right to return it under the Consumer Protection Act (Article 25), even if the defects are within the manufacturer's norm.

FAQ: Frequent questions about broken pixels on Xiaomi TV