How to determine the manufacturer of the display on the smartphone Xiaomi

Buying a new smartphone or waiting for a device to be delivered from AliExpress is always an exciting process. However, there have long been rumors among Xiaomi and Redmi brand enthusiasts about the so-called “display lottery,” the essence of the phenomenon is that the company can complete the same model of a smartphone with screens from different vendors, such as Samsung, BOE or TCL.

Knowing who exactly made the matrix of your gadget is important not only out of idle curiosity. Different panels can differ in color reproduction, angular brightness and energy efficiency. In this article, we will discuss how to see the display manufacturer Xiaomi using standard system tools, third-party utilities and even engineering menus.

Before we start diagnosing, it's important to understand that software-level color calibration often hides the actual physical differences in the panels. However, for those of you who are of the highest quality or planning to replace the glass, this information becomes critical. Let's look at what methods work in 2026.

Why is the manufacturer of the matrix in Xiaomi smartphones important

In the pursuit of value chain optimization, Xiaomi, like many other major vendors, does not rely on a single component supplier; this strategic solution allows the company to avoid scarcity and keep a competitive price; however, for the end user, this means that two identical smartphones bought in different stores may have a different picture.

⚠️ Attention: Don't panic right away if you find a budget matrix. TCL Huaxing is often indistinguishable in quality from Samsung’s top-end solutions, especially in the segment. AMOLED.

The main difference is the production technology and the materials used. OLED-The panels are very refreshable, but even here there are variations. For example, in the Xiaomi 13 or 14 series, users noted the difference in the flickering of the screen (PWM) party-to-party.

For phone color correction professionals or gamers sensitive to input lag, knowing the type of matrix is a must-have for the device, which helps you understand whether you should expect certain artifacts or setting limits.

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Different screen manufacturers are the norm for mass production, not marriage, but the quality of the picture can be subjectively different.

Using the CIT Engineering Menu for Diagnostics

The most reliable and built-in way to get information about the hardware of your smartphone is using CIT (Customer Integration Test) mode, which is created by engineers for factory testing and hidden from the average user, but accessed through a special code.

To enter the diagnostic mode, you need to open the standard Phone app and dial the combination ##6484#. If the code is entered correctly, the test menu will automatically open on the screen, and here is a long list of components that can be checked manually.

You need to find a clause called Version or Display Info. In some MIUI or HyperOS firmware, this section may simply be called Version and be at the top of the list, and if you click on it, you'll see technical information, including manufacturer codes.

The interface of this menu is spartan and may vary depending on the Android version. If you don't find an explicit brand indication, look for code notations that are often spelled out next to the screen resolution. These are the codes that are the key to the solution.

Decoding of display manufacturers codes

Once you access technical information through CIT or other utilities, you'll encounter a set of alphanumeric notations. Manufacturers use standardized prefixes that identify the source of the components, and understanding these codes will eliminate the need to guess.

Here's a table that will help you quickly navigate the notations you find in your system logs or engineering menus, and save it so you don't have to look for information every time you go back.

It's worth noting that the coding may not always be direct, and sometimes the system displays not the brand name, but the internal factory batch index, and in these cases, specialized applications that have advanced databases come to the rescue.

Third-party characterization annexes

If you don't want to mess with your engineering codes, or if they're blocked by a carrier, third-party utilities will come to the rescue. Google Play offers a variety of monitoring tools that can read display data in more detail than standard settings.

One of the most popular and time-tested applications is Device Info HW. It does not require super-user rights (Root) for basic information and displays data in a convenient, structured way. Once installed, launch the application and go to the Screen or Display tab.

• 📱 Device Info HW — It shows not only the manufacturer, but also the type of connection and color gamut.
• 🔍 AIDA64 — powerful combine that gives exhaustive information about all components of the smartphone.
• 🛠 CPU-Z — classic genre, useful also for checking the processor and battery.

In the AIDA64 app, the display information is in the Display section, which will not only show the physical size and resolution, but also the pixel density, and often the name of the panel, but it is worth remembering that the software definition does not always give a 100% guarantee, since manufacturers can hide the real ID of equipment.

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When you install diagnostic applications, pay attention to permissions. They need access to device information to work, but don't give you too much geolocation or contact rights.

Receiving information through ADB and computer

For advanced users who are not afraid of the command line, the most accurate method is to use USB debugging. ADB (Android Debug Bridge) allows you to request raw data from the system, which is often hidden in the GUI. This method requires connecting the smartphone to the PC.

First, activate the developer mode. Go to Settings → About Phone and quickly click 7 times on the MIUI Version or OS Version field. Then, in the advanced settings, turn on “Debugging USB.” Connect the phone to your computer with a cable.

adb shell dumpsys SurfaceFlinger | grep -i"panel\|vendor\|name"

This command will display a list of rows containing the keywords associated with the display, and you can see direct vendor names or paths to drivers, such as /sys/class/panel, analyzing these lines often yields a more accurate result than applications.

⚠️ Attention: For work ADB You need to have device drivers and platform tools installed on your computer. Make sure that you have a debugging permission confirmation on your phone screen.

An alternative way to use ADB is to use the adb shell cat /proc/version command or to look at the kernel logs, which requires careful attention, since the information is presented in solid text, but it is here that you can find mentions of specific display controllers that clearly point to the manufacturer.

Visual differences and image quality tests

When software methods are unavailable or produce conflicting results, subjective assessment comes into play, and experienced users can identify the type of matrix by eye using special test images, especially for distinguishing between IPS and OLED, as well as different generations of OLED.

Download a pure black image and open it to maximum brightness in a dark room. If the screen glows gray or you see backlights at the edges, you're in front of you. IPS-matrix LCD. If the pickets are completely turned off and the screen merges with the frame - this is a quality one. AMOLED.

• 👁 PWM test: Fast-wash your phone in front of your eyes at low brightness, and if you see bright bands, you're using the low-frequency flicker that is typical of some Samsung panels or older panels. BOE.
• 🎨 Viewing angles: tilt the phone at a sharp angle. Cheap matrices often invert colors or lose brightness greatly, while top panels retain the picture.
• 🌈 Gradients: Turn on a smooth color transition image. Bad screens show a banding, which indicates a low bit color (6 bits vs. 8 or 10).

Now, this is a very smart way to do this, but if you're holding two identical smartphones, and one of them is clearly green at low brightness and the other isn't, that's a sure sign of different batches of displays. Green tint is usually more common in Samsung panels of certain years.

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A visual test on a black background is the fastest way to distinguish OLED from LCD, but technical data is needed to determine a brand.

The impact of firmware on the definition of the screen model

Remember that MIUI or HyperOS software can mask real information, and in global firmware versions, some diagnostic data can be cropped or replaced with universal values for the sake of “purity” of the interface.

Users of Chinese firmware (CN ROM) often have easier access to hardware parts. If you have reflashed the phone from the Chinese version to the global version, some system applications may stop displaying component information correctly, even though the physical screen remains the same.

In some cases, resetting or upgrading to the latest version of the software helps, where engineers could fix the display bugs in the About menu, but if the system persistently writes "Unknown", it is likely that the manufacturer deliberately hid this parameter at the driver level.

Frequently Asked Questions (FAQ)