How to accurately identify the screen on the Xiaomi phone: from model to matrix type

A smartphone screen is not just a “picture glass” but a complex module that determines color reproduction, brightness, power consumption, and even the cost of repair. Xiaomi owners often ask: “How do I know which screen is on my phone?” – especially if the device has been hand-held, repaired, or simply needs to be replaced. In this article, we will discuss 7 working methods, from simple (through settings) to advanced (using service codes and tests), and explain how to distinguish between them. AMOLED from LCD phoneless.

It is not enough to know only the model of the smartphone – for example, the Redmi Note 10 Pro can be equipped with screens from different manufacturers (Samsung, BOE, Tianma, which look identical but differ in quality, and if you replace the display after a fall, you're at risk of running into a cheap, unoriginal module, so being able to check the screen yourself will save you money and nerves.

In the article you will find:

• 🔍 Methods of determining the screen model through system menus and applications.
• 📱 Service codes for display diagnostics on Xiaomi, Redmi and POCO.
• 🔧 Visual and software tests to distinguish the original from the fake.
• 📊 Comparative Characteristics Table AMOLED and LCD-screens in smartphones Xiaomi.

1. Verification through phone settings: the basic method

The easiest way to find out about the screen is to look at the settings menu. Unfortunately, Xiaomi doesn’t always specify the display model directly, but you can find indirect data: resolution, matrix type and manufacturer.

Instructions:

1. Open the Settings. → The phone.
2. Tap several times on the item version MIUI, The message is, “You’ve become a developer!".
3. Return to the main settings menu and select Additional settings → For developers.
4. Scroll down to the Equipment block and find the Display Information item.

Here you'll see:

• 📏 Screen resolution (e.g., screen resolution, 2400 × 1080).
• 🔄 Frequency of update (60/90/120/144 Hz).
• 🎨 Type of matrix (sometimes indicated as AMOLED or LCD).

⚠️ Note: On some models (e.g, POCO F3 Xiaomi 11T Pro) this menu can display the screen manufacturer - for example, Samsung E4 or BOE NT37801. If there is no such item, proceed to the following methods.

If your phone doesn’t have a Developer section, try an alternative way:

Settings → Screen → Additional settings → Screen resolution

Sometimes information about supported regimes is hidden here (for example, in the case of the, FHD+ or WQHD+), What will help narrow the search for a display model.

2. Service codes for screen diagnostics

Xiaomi hides some of the technical data behind service codes, combinations that open the engineering menu. 4X Xiaomi 13 Ultra, but new devices can be disabled.

Basic codes for screen check:

• 🔢 ##4636## - opens the Testing menu, where you can check the display (colors, sensor, backlight).
• 🔢 ##225## - shows the screen calibration data, including the matrix model (does not work on all devices).
• 🔢 ##3644633## - Equipment test where the manufacturer can be displayed in the Display section.

How to use:

1. Open the Phone app.
2. Enter the code as a call number.
3. If the code works, you'll see an engineering menu, look for sections called Display, Screen, or Panel Info.

Try to enter the code without stars (*)

Restart your phone and try again.

Check if the engineering menus are disabled in the developer settings

Update the firmware to the latest version-->

⚠️ Warning: Do not change the settings in the engineering menu unless you understand their meaning! Incorrect settings can cause damage to the screen (such as a downed color calibration) or even loss of warranty.

On some models (e.g. Xiaomi Mi 11), the ##225## code displays data in the following format:

Panel ID: NT37801_AMS643KE01_02_BOE




Resolution: 2400x1080

Here. BOE — manufacturer, NT37801 — the controller model, and AMS643KE01 — matrix.

3. Screen testing applications

If the system methods fail, the app side will come to the rescue, not only showing the display model, but also helping to check it for broken pixels, uneven backlights and other defects.

Top.-3 apps:

• 📱 CPU-Z — in the Device section displays information about the display, including resolution and pixel density (DPI).
• 🔍 AIDA64 — Shows the manufacturer and screen model in the Display section (e.g. Samsung) AMOLED S6E3FA3).
• 🎨 Screen Test – Tests colors, gradients and sensors to help identify matrix defects.

Example of data from AIDA64 For the Redmi Note 12 Pro+:

If the app doesn’t show a screen model, try:

1. Update the application database (in AIDA64 This is done through the Update menu).
2. Checking your phone in flight mode – sometimes background processes interfere with reading data.
3. Use root access (only for experienced users!).

💡

If the app says Unknown instead of a screen model, try checking your phone through the phone. ADB (Android Debug Bridge.Adb shell dumpsys display will display detailed display information.

4. Visual tests: how to distinguish AMOLED from LCD

If you need to determine the type of matrix (AMOLED or LCD), But there's no technical data on hand, and visual diagnostics will help. These tests work on any Xiaomi smartphone from Redmi. 9A Xiaomi 13T Pro.

Test 1: Black screen

1. Open any image with a clean black background (for example, through a gallery or browser).
2. Look at the screen at an angle of 45-60 degrees.

• ✅ AMOLED: black color will be deep, without backlighting (pixels are off).
• ❌ LCD: The black will be grayish, as the backlight works even on dark colors.

Test 2: White pouring

1. Open a white image or page (e.g., google.com in your browser).
2. Tip the phone from different angles.

• ✅ AMOLED: white may have a slight purple or greenish hue (depending on the matrix).
• ❌ LCD: white remains uniform, but when tilted, color inversion may appear.

Test 3: Gradients and stripes

Open the gradient smoothness test:

• 🌈 AMOLED: banding can be visible on dark gradients due to the peculiarities of organic LEDs.
• 🖥️ LCD: gradients are usually smoother, but backlight artifacts may appear (e.g., "clouds" on a gray background).

For accurate diagnosis, use a magnifying glass:

• 🔎 Nana AMOLED with large magnification, individual pixels are visible (RGB-matrix).
• 🔎 Nana LCD pixels look like solid points with uniform illumination.

AMOLED

LCD (IPS)

I don't know.

Another (write in the comments)-->

5. Phone disassembly: the extreme method

If all the software fails, the physical test is to remove the back cover and inspect the screen plume, which is only suitable for advanced users, because it requires accuracy and risks being unwarranted.

What you'll need:

• 🔧 Plastic blade or mediator.
• 🔥 Fryer (for softening glue).
• 📸 Loupe or macro lens (for reading small inscriptions).

Instructions:

1. Turn off the phone and remove it. SIM-map.
2. Heat the edge of the back cover with a hair dryer (temperature) ~60°C).
3. Carefully tuck the lid with a spatula, starting from the place next to the tray for SIM.
4. Disconnect the battery (required!), then find the screen plume.
5. On the plume or the matrix itself, look for inscriptions like SAMSUNG AMOLED, BOE NT37800 or Tianma TM19007.

⚠️ Note: On models with a glued screen and body (for example, Xiaomi Mi 11 or POCO F4 GT) Disassembly without special tools can damage the glass back panel.

Examples of markings on Xiaomi screens:

On some screens. BOE Xiaomi may not have an explicit marking – in this case, pay attention to the color of the board plume: BOE It is often green, and Samsung is blue or black.

Serial number and IMEI check

If the phone is still warranty or you buy it from hand, you can find out the model of the screen by serial number or IMEI. This method doesn’t work for all devices, but it can sometimes help detect a replacement display.

How to check:

1. Find it. IMEI Phone: In settings: About the phone → General information → IMEI. On a box or under the battery (if the lid is removable) via code *#06#.

IMEI.info

Official Xiaomi Service

Enter. IMEI and check the completeness data.

What can I find out:

• 📋 Original screen model (if the phone is not repaired).
• 🔧 Information about warranty repairs (if the screen changed in the service center).
• 📅 Production date (helps to determine if a "back-up" display is installed).

⚠️ Attention: If the data IMEI They show one screen model and an app or visual inspection shows another, which is a sign of a non-original replacement, and these screens often have problems with color reproduction, sensor or autobrightness.

Example of data decryption with IMEI.info for Xiaomi Mi 10T Pro:

Display: Samsung E3 AMOLED, 144Hz




Original Panel: Yes

If the Original Panel has a No or Replaced, the screen will change.

7. Contact the Xiaomi Service Center

If independent methods have failed or you suspect that the screen is not original, the most reliable way is to diagnose in an authorized service center. Xiaomi provides free inspection of components under warranty.

What will you receive from the CC:

• 🔧 100% accurate screen model (with manufacturer and batch).
• 📝 A diagnostic act that will be useful for sale or repair.
• 🛡️ Information security (as opposed to independent checks).

How to prepare:

1. Make a backup copy of the data (in case of resetting).
2. Bring checks, a box and a warranty card (if any).
3. Check by phone whether you need to register in advance.

Cost of diagnosis:

• 🆓 Free if the phone is guaranteed.
• 💰 ~300-500 rubles in informal services.

💡

Even if you’re not planning a repair, the act of diagnostics from Xiaomi’s SCC boosts credibility when selling a phone on the secondary market.

The addresses of official service centers can be found:

• On the Xiaomi Russia website.
• Through the Mi Community app (Service section).

FAQ: Frequent questions about Xiaomi screens