Replacing the display on Xiaomi, Redmi or POCO smartphones is one of the most frequent repair procedures after falls or mechanical damage. However, not all service centers install original parts: instead of factory matrices from Samsung AMOLED or BOE LCD can put cheap copies from Aliexpress, which are characterized by the worst color reproduction, dim lighting and incorrect sensor operation. In this article, we will discuss how to independently verify the originality of the display on any Xiaomi device – from the flagship Mi 13 Ultra to the budget Redmi Note 12.
It's important to understand that fake screens not only spoil the user experience, but can also cause a device to overheat, quickly discharge the battery, or even a motherboard to fail due to controller incompatibility. We've compiled all the current methods of verification, from visual inspection to hidden diagnostic menus used by service center engineers.
1. Visual signs of the original Xiaomi display
The first and most affordable way is to look carefully at the screen under different lighting conditions, and Xiaomi's original arrays are very different from the copies that are visible to the naked eye.
What to look out for:
- 🔍 Oleophobic coating: on the original screen, the fingers slide smoothly, and the water drops collect into balls. On fakes, the coating is erased in 1-2 months or absent at all - the screen becomes "sticky".
- 🎨 Color rendering: original AMOLED-Matrixes (for example, in Xiaomi) 13T Pros are deep black and natural, and often give off grayish black and over-saturated.
- ☀️ Brightness and backlight: at maximum brightness, the original screen should not "glow" at the edges (the "bluming" effect), copies often show yellow spots or uneven backlights.
- 📏 Clearances and assembly: there should be no visible gaps between the frame and the glass.
To verify this, turn on a white background (like opening an empty document in Google Docs) and light up the flashlight at an angle. The original matrix should not have rainbow divorces, moire or stripes, which are defects that are common in cheap copies with poor polarization film.
⚠️ Warning: Some fakes mimic the oleophobic coating with silicone grease that wears off after a few days. If the screen becomes sticky 1-2 weeks after repair, this is a sure sign of a non-original matrix.
IMEI and serial number check
Each original Xiaomi display has a unique identifier that is tied to the serial number of the device, and if the screen has become incorrect after replacing, you can verify its authenticity through official services.
Instructions:
- Open the Settings app → The phone.
- Scroll down to All options and find IMEI (or Serial Number).
- Go to the official Xiaomi verification site and enter the data.
- If the system shows discrepancies in data or a warning about unoriginal parts, the screen is replaced with a copy.
You can also use the diagnostic menu:
##4636##In the Phone Information section, check the Display ID string. If it is missing or contains unreadable characters, this is a sign of a non-original matrix.
3. Testing of the sensor and multi-touch
Xiaomi’s original displays feature high-precision sensors with up to 10 touches at a time (depending on the model), and counterfeits often save on the controller, causing problems with recording touches.
How to check:
- 👆 Multi-touch test: Open the Touch Screen Test app and check if all fingers are recognized at the same time.
- ✍️ Sensitivity: Try writing with a stylus or a nail. On the original screen, the lines will be flat, on the fake, intermittent.
- 🔄 Scrolling: Fast-fly through the Instagram or TikTok feed. copies often have "jumps" or delays.
Pay special attention to areas near the edges of the screen – they are often “dead” on fakes (do not respond to touch), and check the navigation gestures (up/down swipes), on non-original matrices they fire every time.
Multi-touch test (10 fingers)|Stylus sensitivity test |Social scroll test |Skyloop gesture test |Taking at the edges of the screen-->
4. Diagnostic codes for matrix verification
Xiaomi hides in the firmware special engineering menus that allow you to get detailed information about the display, these codes work on most models, including the Redmi Note 11, POCO X5 and Mi 12.
Major teams:
| Code. | Appointment | What to look for |
|---|---|---|
| ##36446337## | Display information | Matrix model (must match the original model) |
| ##232338## | Lighting test | Smooth glow without stains and stripes |
| ##0*## | Flower test | Clean colors without foreign shades |
| ##4636## | General information | Display ID (must be displayed correctly) |
If you enter the code and you see a message that says "Connection problem" or the menu doesn't open, it may indicate an unoriginal firmware or matrix, and you should also look at the version of the display driver in the engineering menu, which should match the version of MIUI on your device.
⚠️ Note: Some models (e.g. Redmi) 9A) You can turn off the engineering codes, and in this case, use applications like this. MTK Engineering Mode (for MediaTek processors) or Qualcomm Engineer Mode (for Snapdragon).
Comparison with official specifications
Each Xiaomi model has clear display specifications that can be compared to the current device parameters. 13 Pro should have AMOLED-resolution-matrix 3200×1440 frequency 120 Hz, and Redmi Note. 10 — AMOLED s 2400×1080 and 60/90 Hz.
How to check:
- Find the official specifications of your model on the Xiaomi website.
- Compare with current settings: Screen resolution (Settings) → Display. → Resolution) Update frequency (Settings) → Display. → Update frequency) Matrix type (AMOLED/LCD — I can find out through AIDA64)
90 Hz
60 Hz
Critical sign of fake: if the screen settings do not have the option to change the refresh rate (for example, on the POCO F4 there must be a choice between 60/120 Hz), this means that the matrix is installed without high frequency support.
How to find out the type of matrix through AIDA64?
6. Check through Xiaomi service centers
If independent methods have not yielded a clear result, the most reliable way is to contact the official service center Xiaomi.
- 📋 Serial number of the matrix (must match the base Xiaomi)
- 🔧 Motherboard compatibility (non-original screens often conflict with controllers)
- 🔍 Microscopic inspection (the original displays have laser engraving of the Xiaomi logo)
The cost of diagnosis in official services is usually 300-500 rubles, but it pays off with accuracy of the result. If the screen is fake, you will receive an official report that can be presented to the service center that performed the repair.
Authorized services can be found on a map of Xiaomi service centers. Avoid "gray" workshops that offer free diagnostics - they are often interested in selling their parts.
💡
Before visiting the service, back up your data via Settings → About Phone → Backup. Some diagnostic procedures require factory resets.