How to check the screen Xiaomi for burnout: diagnosis and solution

Owners of modern smartphones Xiaomi, Redmi and POCO often encounter visual artifacts on the display, which can indicate the beginning of the degradation of the matrix. Screen burnout is an irreversible or partially reversible process in which individual subpixels lose brightness or change color reproduction due to uneven load, most often AMOLED and OLED panels, where each pixel glows independently.

It can be difficult to notice the problem early on because the human eye is highly adaptable. However, if you see faint shadow from messenger icons or navigation buttons on a white background, this is an alarm. In this article, we will discuss how to conduct a professional diagnosis of your device’s display using both built-in tools and third-party tools.

Timely detection of a defect allows not only to assess the condition of the device before buying from hand, but also to try to restore the uniformity of the glow by software methods before the process becomes critical.

Visual diagnosis and the first signs of defect

The initial screen inspection should be done in good lighting, but without direct solar glare, which can mask defects. Burnout is most often manifested in static areas of the interface: the status bar on top, where the time and battery charge are displayed, and at the bottom of the screen, where the navigation bar or keyboard is located. If the contours of these elements are visible on a monochromatic background, the matrix has undergone uneven wear.

Special attention should be paid to color reproduction. On AMOLED arrays, organic phosphors of red, green and blue degrade at different rates. The blue subpixel usually wears out faster than others, and this can lead to a yellowish or greenish hue on certain areas of the display, which is especially noticeable on gray gradients.

⚠️ Warning: Don’t confuse burnout with factory defect or the “shimmering effect" (PWM), commonplace OLED You can see burnout all the time, regardless of the angle of view and the level of brightness.

For accurate visual assessment, it is recommended to set the maximum brightness of the backlight and switch to Standard or Classic mode in the color profile settings. In Saturated or Vivid mode, oversaturated colors can hide the uneven glow of the pixels, creating a false impression of the screen being serviceable.

Using Xiaomi’s built-in engineering tests

The most reliable way to check the screen for broken pixels, uneven illumination or burnout is using the hidden CIT (Customer Interface Test) engineering menu, which is available on all Xiaomi smartphones running MIUI and HyperOS and allows you to conduct deep hardware diagnostics without installing additional software.

To enter the testing mode, you need to open the standard application "Phone" and enter a special USSD-Once you enter the last digit, the menu will open automatically. In the test list, you will find the item associated with the display. It can be called Display, Screen or Color Test.

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Once you're on the test menu, you'll see the ability to switch the screen to different monochrome modes: white, black, red, green, blue. Run the test in complete silence and darkness to see the slightest deviations. White best shows the difference in the brightness of subpixels, and black helps to identify the lights or "dead" zones that glow dimmer than others.

The engineering menu also allows you to check the touchscreen, which is important, since burnout is often accompanied by sensor degradation in the same areas. If in certain areas of the screen the sensor reacts worse or “missing” touches, this can be an indirect sign of general wear of the matrix assembly.

Software methods of verification through applications

If you have limited access to the engineering menu for some reason or want more detailed statistics, you can use specialized applications from Google Play. Programs like Screen Test, Dead Pixel Test or Display Tester offer advanced sets of test images, including complex gradients and grids that help to detect minimum brightness differences.

One effective method is to use high-resolution full-screen (4K) video with monochromatic content. Upload black, white and gray background videos to your smartphone and run them on full screen, turning off automatic brightness control. Gray (especially 50% brightness) is the litmus test for AMOLED arrays, as it best shows the difference in the glow of worn-out pixels.

• 📱 Dead Pixel Test is a simple app that quickly runs the screen through the main colors to find defective areas.
• 🎨 Display Tester – a professional tool with color calibration and a uniformity test (Uniformity Test).
• 🎥 YouTube 4K Test - the use of ready-made video clips with color tables available in the 4K permit.

⚠️ Warning: When using third-party applications for the maximum brightness test, monitor the temperature of the case. Prolonged screen operation at 100% brightness in combination with the work of the processor can cause overheating, which temporarily distorts the color reproduction.

Some apps also offer a Screen Burn-in Fix feature that claims to be able to restore burnt-out pixels, which involves changing colors quickly to stir up a phosphor. The effectiveness of these methods is controversial and depends on the degree of degradation: if the burnout is physical, software repair won’t help.

Analysis of burnout on different types of matrices

Understanding the type of matrix installed in your Xiaomi is critical to correctly interpret the test results. Budget models often feature IPS displays, while flagship and mid-budget lines (Redmi Note, Xiaomi Mi, POCO F) use AMOLED, Super AMOLED or E-AMOLED technologies.

IPS (Liquid Crystal Display) technology uses constant lighting and liquid crystals that only block light. They don't normally burn out, but IPS can have a "crystal effect" or backlight bleed, and a temporary sticking of the image that takes place minutes after the image changes.

Unlike IPS, in AMOLED screens, each pixel is a self-contained light source. The organic compounds that make up them have a limited resource. When you talk about checking Xiaomi's screen for burnout, 95% of the time it's AMOLED arrays, where the resource of blue subpixels can be lower than the red and green ones.

Samsung’s current E4, E5 and E6 arrays, which are widely used in Xiaomi smartphones, have improved pixel structure and special coatings that slow down burnout. However, static images at high brightness remain the main enemy of any OLED display, regardless of the generation of technology.

Table of comparison of burnout symptoms

To organize the data, you can use a comparative table to distinguish the actual defect from the software glitches or calibration features.

Importantly, the table shows the typical cases: In rare situations, a software failure of a display driver can simulate burnout; rebooting a device or resetting a setting to a factory (Wipe Data) can eliminate a software error; if artifacts are left in the same places after a reset, it is a hardware problem.

The critical threshold is when the difference in brightness between the burned area and the rest of the screen area exceeds 20-30%, which makes the use of the device uncomfortable.

Recovery and prevention methods

If Xiaomi's screen burnout test is positive, many users immediately look for "cures." There is a myth that burnt pixels can be "burned back." The method is to turn on a video with a rapid change of colors to maximum brightness for several hours. In the case of temporary sticking (Image Retention) this can help to level the charge in the cells, but with physical wear of organic matter, this method is useless and even harmful, because it accelerates the degradation of the remaining living pixels.

A more effective strategy is to prevent and mask the defect. MIUI and HyperOS have a Hide Notch feature that adds a black bar to the top, which not only hides the camera, but also reduces the load on the top row of pixels, where burnout is most often caused by a static status bar.

• 🌑 Dark theme – using the system Dark Mode reduces the load on the system AMOLED The black pixels are simply turned off and do not consume energy.
• ⏱ Screen timeout – set a minimum time before the display is turned off (for example, 30 seconds) so that the static image does not burn for a long time.
• 📉 Autobrightness - do not keep the brightness on 100% It's not necessary. 40-60%.

⚠️ Warning: Complete recovery of a burnt-out screen is not possible by software. If a defect interferes with operation, the only solution is to replace the display module.

You should also use dynamic wallpaper instead of static. Live wallpaper constantly changes the pixels, making them work in different modes, which contributes to more uniform wear of the entire matrix area. Avoid using static widgets with high brightness on the home screen.

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Use gesture navigation instead of on-screen buttons, which removes static elements from the bottom of the screen that burn out in the first place, and frees up useful display area.

Conclusion and final recommendations

Checking Xiaomi’s screen for burnout is a procedure that is useful to do periodically, especially if the device is more than two years of active use. Regular diagnosis through the engineering menu # # # # #6484## will track the dynamics of changes. Early detection of uneven glow will help you sell the device at a higher price or contact the service center in time if the case warranty.

Remember that burnout (light, minor) is a natural aging process of organic displays and is not considered a manufacturing defect by manufacturers. However, if the stains appeared in the first months of use, this is a cause for complaint. Careful attitude, use of dark themes and refusal of maximum brightness will prolong the life of your Redmi or POCO.

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Burnout is the physical wear and tear of organic LEDs that cannot be completely eliminated programmatically, but can be slowed down by proper usage habits.

Finally, don't panic when you see the slightest traces on a white background. For most users, in everyday scenarios (social networks, videos, games), the mildest burnouts are invisible. The main thing is to objectively assess the degree of impact of the defect on the comfort of using the gadget.

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