The sudden appearance of colored spots, ink blots or rainbow stains on your smartphone’s display is always stressful, especially if the Xiaomi brand’s device is used as a primary tool for work and communication. This phenomenon is popularly called a “flowing matrix”, although technically it means physical damage to the liquid crystal layer or the surface of the liquid crystal. OLED-Unlike cracked glass, which often remains functional, damage to the inside of the screen almost always leads to complete image degradation over time.
The first thing that the owner of a Xiaomi smartphone needs to realize when detecting such a problem is the irreversibility of the process in most cases. IPS-screens or organic compounds in AMOLED The attempt to ignore the defect usually leads to the fact that the black spot begins to grow, capturing more and more useful area, up to the complete blackness of the screen.
However, you should not panic ahead of time, as sometimes visual artifacts can be caused by a software failure or temporary oxidation of the plume, rather than fatal damage to the panel itself. In this article, we will discuss in detail how to make a proper diagnosis, distinguish "broken" pixels from the real flow of the matrix and what solutions exist, from budget temporary measures to professional replacement of the module.
Diagnostics of the problem: a matrix or software failure is flowing
Before you carry a device to a service or order parts, you need to accurately determine the nature of the defect. Often users confuse the physical "flow" with software artifacts that occur after a MIUI system update or application crash. The real damage to the matrix is characterized by static or slowly expanding patches of purple, green or black, which are visible even on the bootloader menu.
To start with, do a simple check: take a screenshot of the screen and open it on another device or send it to your messenger. If the screenshot is clean and the phone shows spots, it's a physical problem. If the spots are "impressed" on the screenshot, then the software failure of the GPU or operating system is to blame. Also pay attention to the touchscreen: when the matrix is physically damaged, the sensor is often disrupted in the defect zone.
There is another effective diagnostic method that helps to identify hidden backlight defects or the initial stages of degradation. OLED-Start displaying pure white, black and red at maximum brightness. White backgrounds show yellow burnouts or uneven backlights, and black backgrounds show lights or broken pixels, which can be harbingers of more serious problems.
- 🔍 Take a screenshot of the screen: if the spots are visible in the image, it is software, if not - (iron).
- 🎨 Run a solid color test image to detect uneven backlighting.
- 🖐 Check the response of the touchscreen in the problem area: the lack of reaction confirms the physical rupture of the plume.
- 📱 Restart the device to Safe Mode to eliminate the impact of third-party applications.
⚠️ Warning: If the spot on the screen began to grow rapidly within hours or days, this is a sure sign of depressurization of the cell with liquid crystals.In this case, the use of the phone may be difficult due to loss of visual control, and you can not drag with repairs.
It's also important to consider the age of the device, on older models of the Redmi Note or Mi series. IPS-The leak is often a consequence of the natural aging of the adhesive layer or mechanical pressure in the pocket. AMOLED matrices such defects most often occur after impacts or moisture, since the organic layer is extremely sensitive to mechanical influences.
The main causes of damage to the display Xiaomi
Understanding the cause of the defect helps not only in diagnosis, but also in preventing the situation from recurring in the future. Physical damage to the inside of the screen is always the result of external influence or production defects that manifested themselves over time. Owners of Xiaomi smartphones should know the main risk factors to minimize the likelihood of failure of the expensive component.
The most common cause is mechanical impact: falling from a low altitude to a hard surface. The shock wave may not break the outer glass, but may cause a microcrack inside the matrix. Over time, air or moisture enters this crack, causing the characteristic "spreading" of the ink, especially vulnerable to this curved screens flagship models, where the side faces are not sufficiently protected.
The second most common cause is overheating of the device: Long gaming sessions, heavy-duty applications or charging in hot weather lead to expansion of components inside the case. The pressure on the matrix increases, and if there is a microscopic manufacturing defect, it can open up. Also worth mentioning is the manufacturing defect, which unfortunately occurs in the budget lines of Redmi and Poco, where quality control can be less stringent than that of premium brands.
Wearing a phone in a tight pocket of jeans, along with keys or trifles, creates a point pressure on the body. Even if the glass withstands the load, the inner matrix can receive a critical impulse, leading to a violation of the integrity of the layers, this is especially true for models with thin frames, where the margin of safety is minimal.
Interim decisions and precautions
If you can't replace a screen right now for financial or organizational reasons, there are ways to extend the life of the display a little bit or make it more comfortable, but it's worth noting that these methods are not repairs, but crutches to get through to buying a new matrix, and the main goal is to stop or slow the spread of the defect.
The first rule is to reduce the brightness of the screen to a minimally comfortable level. High brightness contributes to the heating of the matrix, which can accelerate the chemical degradation of liquid crystals or organic layer. In addition, against a dark background, the boundaries of the sprawling spot may be less noticeable, which will allow you to somehow navigate the MIUI interface and read notifications.
The second important step is to eliminate any physical pressure on the area of damage: do not put the phone down, do not press hard on the problem area and try not to carry the device in a tight pocket. Any additional mechanical impact can cause the ink stain to expand instantly, after which the phone will become completely useless.
- 🌡 Reduce screen brightness and turn off autobrightness to reduce heat.
- 🛑 Avoid any pressure on the area of damage to the matrix.
- 📵 Turn off Always-On Display to reduce the load on your device. OLED-panel.
- 💾 Make regular backups of data as the phone may stop turning on completely.
⚠️ Warning: Do not attempt to stretch or massage the spot with your fingers, a common myth that in 99% of cases only leads to a deterioration of the situation and the final failure of the matrix.
It is also recommended to enable the "Energy Saving" mode or special topics with a dark interface. AMOLED-In the screens, black means the pixels are off, which reduces power consumption and heat. IPS-screen, dark theme will still help to visually hide the defect and make the use of the smartphone less annoying.
Preparation for the replacement of the matrix: tools and spare parts
When you do make the decision to repair, you'll need not only a new part, but the right toolkit. Replacing the matrix on Xiaomi smartphones is a process that requires precision and understanding of the design of the device. In modern models, the screen is often glued to the frame or even to the back cover, which makes it difficult to dismantle.
To start with, you need to buy a quality display module. In the Xiaomi parts market, there are three main types of screens: Original (original), OEM (quality copy) and Copy (cheap copy). The original is fully factory-friendly, has the right color reproduction and fingerprint sensor operation under the screen. Copies can suffer from low brightness, color distortion and a broken scanner.
You will need the following set of tools: a set of screwdrivers (including a cross and an asterisk), a plastic blade (mediator) to open the case, a suction cup to lift the glass, tweezers and thermophene or a heating pad to soften the glue. Also, remember to include isopropyl alcohol and a new glue B-7000 or T-7000 to fix the module after assembly.
☑️ Preparation for screen replacement
It is important to check the compatibility of the plumes beforehand. Even within the same model (for example, Redmi Note 10) there can be different versions of screens from different vendors (Samsung, Tianma, Huaxing). The plumes can differ in the location of the contacts, so visual comparison of old and new parts before soldering or connection is a must.
Step-by-step instructions for replacing the screen
The replacement process begins with the device completely shutting down and retrieval. SIM-If the back cover is glass, it should be carefully heated around the perimeter with a thermophen to a temperature of about 80-90 Be careful, because overheating can damage the battery or internal plastic elements of the case.
Once heated, use the suction cup and the mediator to separate the back cover. Move slowly, cutting the glue around. When you remove the lid, you'll see screws that lock the motherboard's protective bar. Unscrew them, remove the bar and gently disable the battery plumes, the main plume and the display, and only after the battery is turned off can you touch the other components.
The most difficult step is to dismantle the old matrix. In most modern Xiaomi smartphones, the screen is glued to the frame. You need to evenly warm the front part (if the glass is whole) or carefully separate the remains of the glass from the frame using a thin string or a special tool. Clean the frame from the old glue to a perfectly smooth state, degrease the surface with alcohol.
| Work segment | Action. | Risks. |
|---|---|---|
| Disassembly | Heating and removal of the back cover | Damage to glass cover, burn to the fingers |
| Shutdown | Removal of metal protection and plumes | Trail break, short circuit. |
| Dismantling | Separation of the matrix from the framework | Crushing of the new matrix, damage to the frame |
| Installation | Sticking of the new module | Screen skewing, dust ingress |
Install the new matrix in the frame, pre-applied a thin layer of glue B-7000. connect the display plume and the plume of the touch screen (if they are separate), then connect the battery and check the operation of the device without finally gluing the lid. If the image is clean and the touch works, apply the glue on the frame, press the module and lock with rubber bands for 1-2 hours until completely dry.
⚠️ Warning: When working with the battery, avoid puncture or severe compression. Damage to the lithium polymer battery can cause fire or chemical burns. Work in a well-ventilated room.
Comparison of matrix types and repair costs
Choosing between screens (IPS and AMOLED) It has a direct impact on the cost of repair and image quality. In smartphones Xiaomi entry-level and mid-level are most often used IPS-Matrices that are cheaper to manufacture and repair.The flagship models and devices of the Mi and Xiaomi Number Series are equipped with AMOLED-panels that provide deep black and high contrast, but their replacement is much more expensive.
The cost of the original AMOLED-the module with a frame can reach 60-70% It's not the price of a new phone, which often makes it economically viable to repair it. IPS-The screen on the budget Redmi is usually about 30-40% the cost of the device, which justifies the investment. AMOLED-screens are cheaper, but rarely retain original resolution and refresh rate.
When choosing a part, also consider the presence of a frame. Frame modules already have a new body installed, which makes it easier to build and ensures no gaps. Frameless modules require re-painting of your old body, which is time-consuming and risky for an inexperienced craftsman. The difference in price between them can be significant, but the savings on the frame often lead to problems with tightness and appearance.
The table below provides an approximate comparison of characteristics and cost for typical models:
| Screen type | Quality of flowers | Energy consumption | Renovation price (roughly) |
|---|---|---|---|
| IPS (Copy) | Middle, faded colors | High. | Low (20-30$) |
| IPS (Original) | Good, natural. | Average. | Medium (40-50$) |
| AMOLED (Copy) | Saturated but inaccurate | Average. | High (60-80$) |
| AMOLED (Original) | Perfect, deep black. | Low. | Very high (100$+) |