How to see Xiaomi screen statistics: hidden codes and engineering menu

Xiaomi, Redmi and POCO users often wonder about the resource of their display, especially before buying a used device or when visual artifacts arise. Unlike batteries, where the charging cycle counter is visible immediately, screen statistics are hidden deep in the system logs and engineering menus. However, there are proven ways to access this data without superuser rights.

Understanding how display monitoring works can diagnose a matrix burnout, touchscreen issues, or a lighting controller overheating. Android and MIUI (now HyperOS) keep detailed logs of all hardware components. In this article, we’ll look at how to extract this information using only built-in tools and special codes, without installing third-party software.

It’s important to note that not all smartphone models provide the same level of data detail.The flagship Xiaomi and Redmi Note series typically have more advanced diagnostic tools compared to the budget C or A series models. However, basic parameters such as uptime and current resolution are available on almost any device.

Diagnostics through CIT Engineering Menu

The most reliable way to access hardware statistics is to use the built-in CIT (Customer Integration Test) menu, which is a factory quality check, and contains tests of all components, including the display, and to get there, you need to open the standard Phone application and type in a secret code.

Enter ##6484## on the dial keyboard. If the code is entered correctly, the system will automatically redirect you to the test menu without requiring you to press the call button. Here you will find a list of all available tests. We are interested in the item related to the display, which can be called Display, Screen or Color bar.

By selecting a screen test, you can not only visually evaluate the color reproduction, but also see the current performance parameters. Some versions of MIUI firmware display the version of the display driver and the current refresh rate when you go to this section, which is critical for owners of adaptive models, such as the Redmi Note 12 Pro+ or Xiaomi 13.

⚠️ Warning: Do not change the settings in the engineering menu unless you are sure of their purpose. resetting the touchscreen calibration or changing the color profile without equipment can lead to incorrect display of colors.

Using Hidden Codes to Verify the Matrix

In addition to the general CIT menu, there are specific codes that run directly matrix tests, which help to detect broken pixels, uneven backlights or problems with the touch layer. To run the test, the code # # #64663## is often used, which opens an extended test menu.

In this mode, the screen is consistently filled with different colors: red, green, blue, white and black. Your task is to carefully examine the surface of the display for spots that do not change color, or dots that constantly burn or do not burn at all, this is the main method of detecting matrix defects when buying a used Xiaomi smartphone.

It also allows you to check the touch layer, and often the touchscreen failure statistics are not explicitly reported, but the multi-finger touch test will show if all areas of the screen are responsive to touch, and if the sensor doesn't work in a particular corner of the smartphone, it may indicate physical damage to the plume or the digitizer itself.

• 🔍 Uniformity: Check for white backgrounds in the dark for “clouds” or lights around the edges.
• 🎨 Color Rendering: Make sure there are no foreign shades or stripes when switching colors.
• 👆 Multi-touch: the test should support up to 10 simultaneous touches on modern models.

Analysis of application work time and activity

If you mean by screen statistics how long it's been on, standard Android tools provide that information in full, and usage statistics tell you which apps are loading the display the most, and how much time you spend looking at your smartphone, which is an indirect measure of wear and tear on the OLED or IPS matrix.

For detailed statistics, go to Settings → Digital Well-Being and Parental Controls, which shows a screen schedule broken down by day and hour, and see how many times you unlocked your device and which apps you used most, which helps you estimate the backlight and pixel load.

A deeper level of statistics is available in the Developer Menu, and you need to click on the version number in the About section 7 times to activate it, and when activated, a new item will appear in the menu, and you can find the "Show Activity" or "Process Statistics" option, where you can see which services are using the screen in the background, which may indicate system optimization.

It is worth noting that constant high brightness and static image (for example, a navigator or keyboard) accelerate the degradation of organic LEDs in AMOLED screens. Therefore, analyzing the running time helps to adjust usage habits, for example, to turn on autobrightness or a dark theme.

Checking the temperature and voltage of the display

Technical statistics also include power and temperature. Overheating is one of the main enemies of electronics, and the display module is no exception. The display power controller can be heated by playing games or watching high-resolution video. Monitoring these indicators helps prevent plumes from detaching or glue degradation.

You can use temperature data to obtain ADB-There are many simpler ways to do this through the debugging menu, and in the developer section, you can often find the Temperature Display option or similar monitoring tools, but for accurate data, you can use applications like this one. CPU Throttling Test, which reads data from thermal control sensors, including near-panel sensors.

The normal operating temperature for the display area is between 30 and 45 degrees Celsius under active load. If the readings are above 50 degrees, this may indicate problems with heat sink or a malfunction of the controller.

⚠️ Warning: If your Xiaomi smartphone gets too hot at the top (where the display plume is located), stop using immediately and let it cool.This could be a sign of a short circuit in the backlight circuit.

Additional settings in HyperOS and MIUI

With the release of the HyperOS shell, Xiaomi has slightly changed the structure of system reports, now paying more attention to the power consumption of each element, including the screen. In the Battery section, you can see detailed statistics of the time “Screen On Time”, which is a key parameter for assessing the residual life of the device.

Also, newer versions of the firmware have a visual protection feature that adjusts color temperature based on the time of day, and the statistics of this feature are available in the screen menu, and you can see how many hours a day blue light protection worked, which is useful for assessing eye strain.

Advanced users can use the Advanced Colors mode, which allows you to switch between color profiles (sRGB, P3, Vivid) and switch between them does not reset statistics, but can temporarily change the calibration. If you notice that after switching the profiles, the colors have become unnatural, you may need to reset the screen settings or calibrate through the engineering menu.

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Use a dark theme and Always On Display with a minimalist dial to reduce the load on individual pixels. AMOLED-screens and prevent uneven burnout.

Frequent problems and their solution

When analyzing the statistics and the state of the screen, users often encounter artifacts that can be interpreted as a failure. However, these are software failures. For example, dead pixels can sometimes be revived with programs that quickly change the color of neighboring dots. This does not always help, but it is worth trying before replacing the module.

Another common problem is ghost touch, which is not a statistical one, but it's manifested in the chaotic opening of applications, often because of a poor charger that causes interference, or because of a plume damage. If the screen statistics show normal operation, but the touchscreen is acting strangely, check the charging.

If you find that the screen time statistics have increased dramatically without your involvement, check the list of running applications. Perhaps some application has got stuck in the background and keeps the screen active or keeps it from going out, in which case cleaning the cache or removing the problem application will help.

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Regular screen checks through the engineering menu and time analysis are the best ways to extend the life of your Xiaomi display and notice the problems that are beginning.