Who made the screen of your Xiaomi Poco X3 Pro? Complete guide to determining the matrix manufacturer

Why is it important to know the screen manufacturer of your Poco X3 Pro?

The screen is one of the most expensive and vulnerable parts of a smartphone. - Xiaomi Poco X3 Pro (model) M2012J11SG or M2012J11SI) Matrices are supplied by several manufacturers at once: TCL (CSOT), BOE, Samsung Display and less commonly Huaxing Optoelectronics. The matrix brand depends on color reproduction, brightness, power consumption and even the tendency to burn out" OLED-pixel.

For example, Samsung AMOLED screens are traditionally considered benchmarks for depth black and saturation, but can have a greenish hue at low brightness. BOE matrixes are often brighter but with less accurate color reproduction. TCL CSOT is the gold standard for the Poco X3 Pro in terms of price-performance balance, but is less common.

• 🔍 Choose the exact spare parts for replacing the screen (original or analogue).
• 🎨 Set up a color profile in the display settings for matrix features.
• 💰 Estimate the market value of the phone when selling (Samsung screens are valued higher).
• 🛠️ Predict typical problems (e.g., yellow shift) BOE leaning).

In this article, 5 working methods for determining the screen manufacturer, including hidden service codes, applications and visual tests. No disassembly of the case or the risk of damaging the phone!

Method 1: Service code ##6484## is the fastest way

This is the official engineering code for display testing, which works on all Xiaomi smartphones based on MIUI. It outputs technical information about the matrix, including the manufacturer name and panel model.

Instructions:

1. Open the Phone app.
2. Enter the combination: ##6484## (like a regular phone number).
3. The Manual Test menu will appear on the screen. → Display.
4. Scroll down to the Panel Info block – here will be a Manufacturer string with the brand name.

Possible values in the Manufacturer field:

⚠️ Note: If the code is entered, a message appears "Connection problem or invalid" MMI code, which means your version MIUI It blocks the engineering menu. Try methods 2 or 3.

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Take a picture of the screen with data from the service menu – it will be useful when selling a phone or contacting a service center.

Method 2: Device Info HW Appendix – Detailed Iron Analysis

If the service code doesn’t work, use the third-party Device Info HW app (available on Google Play) that reads data directly from the display controller and shows an exact matrix model that other utilities don’t see.

Step-by-step:

1. Install Device Info HW from Play Market.
2. Open the application and go to the System tab.
3. Scroll to the Display block.
4. Find the lines: Display Manufacturer - manufacturer (e.g. BOE) Display Model - panel model (e.g. NT36672A for TCL).

Example of decoding the matrix model:

• 🔹 NT36672A — TCL CSOT (Poco's best option X3 Pro).

Find the Display block|Contrast Manufacturer with table|Write down a Model to search for spare parts|Check the permit (2400×1080 POCO X3 Pro)-->

The advantage of this method is that it works even on custom firmware and does not require root rights, but some Chinese matrices (for example, from Huaxing) can be displayed as Unknown.

Method 3: Visual color reproduction test - no programs

If you can't use code or applications, you can identify the manufacturer by the characteristic artifacts of the matrix, which is subjective, but works 80 percent of the time.

Run tests:

1. White screen test: Open a pure white image (like Google Photos). Tin the phone at a 45° angle. If it's bluish or green, it's probably BOE. If it's neutral, TCL or Samsung.

Black screen test:

• Turn on black background (Dark theme mode or special image).
• Light the flashlight at an angle.
• If you see the purple backlight - Samsung.
• If the lighting is grayish, it is TCL/BOE.

Additional features:

• 🔦 BOE: Often has a higher maximum brightness (up to 500 nits), but worse shows shadows.
• 🎨 TCL CSOT: It better transmits skin tones, but can have a slight yellowness with minimal brightness.
• ⚡ Samsung: Less energy consumption, but contrast is lower than competitors.

⚠️ Attention: Visual tests only work when you're setting the screen in the factory. → Display. → Color scheme, first reset it to Standard.

Method 4: Disassembling the phone – for experienced users

If all the software methods fail, you have to physically inspect the matrix, which is neat and only suitable for those who have already had experience with disassembling smartphones.

What to do:

1. Turn off the phone and remove the tray for SIM-map.
2. Heat the back cover with a hairdryer (temperature not higher than 60 ° C) and gently tuck it with a plastic spatula.
3. Unscrew 10 screws (T3 type) and remove the metal plate.
4. Disconnect the battery plume, then the screen plume.
5. On the back of the matrix will be a labeled sticker.Look for the lines: Made by TCL or CSOT BOE Optoelectronics Samsung Display Co., Ltd.

Example of marking on a sticker:

P/N: MB12345-01


Made by BOE




Model: HSD070PF1




Date: 2021.05

⚠️ Attention: Disassembly of Poco X3 Pro without experience is fraught with damage to the screen plume or separation of contacts of the battery. If you are not sure, contact the service center. The cost of diagnosis (without repair) usually does not exceed 500 rubles.

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Physical examination of the matrix is the only way to know the manufacturer 100% if the software methods don't work, but the risk of damage to the phone is high!

Method 5: Online IMEI Services – Myth or Reality?

In practice, this does not work – databases like IMEI.info or SNKR show only general model information (Poco X3 Pro), but do not detail components.

However, there is one caveat: if you bought the phone from the official Xiaomi store (for example, on the Mi Store), the Batch Number may be indicated on the check or warranty card.

What will not help determine the manufacturer of the screen:

• ❌ Verification IMEI on any service.
• ❌ Serial phone number (Settings) → About phone → Serial number).
• ❌ Fastboot (Fastboot Getvar All).
• ❌ Information in Google Play Console (shows only screen resolution).

If you're offered "IMEI screen recognition for money" is a scam, the only reliable ways we've described above.

Poco X3 Pro screen comparison: which is better?

Now that you know the manufacturer of your matrix, we'll figure out what the pros and cons of each variant are, and we've gathered data from DisplayMate tests, user feedback, and lab measurements.

Adjustment recommendations:

• 🔧 For BOE: Set the color profile Saturated and reduce the color temperature by 10%.
• 🔧 For TCL: Use the Standard Profile and turn on Adaptive Brightness.
• 🔧 For Samsung: Activate Reading (warm tone mode) for a comfortable experience.

If you're planning a screen replacement, you should focus on TCL CSOT, which is the best price-performance balance. BOE matrices are cheaper, but often have backlight defects.

FAQ: Frequent questions about Poco X3 Pro screens