Replacing the charging screen on Xiaomi: from disassembly to testing

The charging screen is not just a display, but a complex module that includes a touch layer, backlight and motherboard connection plumes.On Xiaomi smartphones (especially in Redmi Note models, POCO And in the Mi series, this module often fails because of mechanical damage, moisture or factory defects. If your phone stopped responding to touch, shows artifacts when you connect the charging or does not turn on at all, the problem may lie in the screen.

Replacing your charging screen on Xiaomi is a medium-sized task that requires accuracy, the right tools, and understanding of your smartphone. In this article, we’ll take a look at the step-by-step process of replacing, how to avoid common mistakes (such as damage to your battery plume), and give you tips on how to choose a quality screen, and how to contact your service center and when you can manage it yourself.

Signs of a faulty charging screen

Before you start disassembling, make sure the problem is really in the screen.

🔋 The phone does not respond to the charging connection (there is no charging indication on the screen), but the charging is ongoing (checked through Settings). → Battery).
📱 The screen flickers, shows stripes or artifacts only when the charger is connected.
🔌 The phone turns on but doesn’t detect charging (the battery icon doesn’t change), although the cable and power supply are good.
💥 After a fall or impact, the screen stopped working, but the smartphone makes sounds and vibrates.

If you see at least one of these signs, the probability of malfunction of the screen (or its plume) is 80-90%.

🔌 Other charger and cable (better original from Xiaomi).
🔄 Reboot your phone in safe mode (hold the power button) → Restarting in Safe Mode).
🔧 Cleaning the charging connector from dust and debris (use a wooden toothpick or compressed air).

⚠️ Warning: If the phone doesn't turn on at all (no vibration, no sounds, no indication), the problem may be in the motherboard or battery.

📊 How often do you encounter screen problems on Xiaomi?

Never.

Rarely (once in) 2-3 year-end)

Frequently (once a year)

Constantly (several times a year)

What tools will be needed to replace

To replace the charging screen on Xiaomi, you need a specialized set of tools. Don't try to do anything at hand, it can damage the plumes or the case. Here's the full list:

Tool.	Appointment	Where to buy
Plastic shoulder blades (mediator)	Separation of the shell without scratches	AliExpress, radio parts stores
A set of screwdrivers (cross, five-pointed, Y-shaped)	Spinning of different types of screws	Any tool store
Screen suction cup	Safe separation of the display from the body	Phone repair kits
Tweezers with curved ends	Working with small plumes and connectors	AliExpress, Ozon
Fryer-dryer	Softening the glue under the screen	Electronics stores

Also prepare:

🧴 Isopropyl alcohol (90%+) — Cleaning contacts and removing glue residues.
🧲 Magnetic mat – not to lose screws (in smartphones Xiaomi up to 20 pieces!).
🔋 External battery (power bank) – in case you have to test the screen without a battery.

⚠️ Warning: Don't use metal blades or knives to separate the screen - it's almost guaranteed to damage the plumes of the backlight or sensor.Plastic mediators cost pennies, but will save you nerves and money.

💡

Before disassembling, take a picture of the location of all the plumes and screws at each stage, which will greatly simplify the reverse assembly, especially if you are repairing your smartphone for the first time.

Step-by-step instructions for replacing the charging screen

The process of replacing the screen on Xiaomi can be divided into 5 We will look at the universal instruction manual that is suitable for most models (Redmi Note). 10/11/12, POCO X3/X4, Mi 11/12). There may be nuances for a particular model – it is better to clarify them in the disassemblies on YouTube or forums (for example, in the case of a particular model, 4PDA).

1.Switching off and preparing the phone

Before disassembly completely turn off the smartphone and remove SIM-card and memory card (if installed:

Heat the back cover of the phone (temperature) with a hair dryer ~60°C) for 2-3 minutes to soften the glue.
Put a plastic blade on the lid, starting at the bottom edge (near the charging connector).
Carefully separate the lid as you move around the perimeter. Xiaomi models often have latches — don't put too much effort into it!

2. Battery shutdown

This is the most critical stage, and if you don't properly shut down the battery, you can short-circuit and fail the motherboard.

Find the battery plume (usually located at the bottom of the board, next to the charging connector).
Carefully put a plastic blade on the connector and unplug it.
Fix the plume with tape to the case so that it does not touch the contact board.

Is the phone off?|Is the back cover heated?|Do you use a plastic spatula?|Did the battery plume get taped?-->

3. Dismantling the old screen

Now you need to disconnect the screen plumes and remove it:

Unscrew all the screws that attach the metal plate over the screen plumes (usually 4-6).
Disconnect the connectors of the plumes (main display, touch layer, backlight). In Xiaomi models, they are often fixed with latches — lift them with tweezers.
Heat the screen around the perimeter (temperature) with a hairdryer ~70°C) and gently suction it with a suction cup. Move slowly so as not to break the plumes.

If the screen cracks, stick tape on it so that the fragments do not fly apart when removed.

Installation of a new screen

Before installing the new screen:

🧴 Clean the phone frame of the old glue with isopropyl alcohol.
🔍 Check if the connectors on the new screen match the old ones (sometimes Chinese replicas have a different slatting!).
📏 Make sure the sealing gum (if any) is properly installed around the perimeter.

Connect the new screen plumes to the motherboard (start with the main display, then the sensor, backlight).
Set the metal plate with screws (do not pull!).
Place the screen in the slots and press it, starting from the top.

5. Assembly and testing

After installation of the screen:

Connect the battery and check if the phone is switching on.
Connect the charging - should appear indication of charging.
Test the sensor (use the Touch Screen Test app from Google Play).
Make sure there are no broken pixels or backlights (start a video with a uniform color).

If everything works, close the back cover and twist the screws. If the screen doesn't respond to touch or shows charging, check the density of the plumes' contacts.

💡

The most common mistake when replacing the screen with Xiaomi is the wrong connection of the backlight plume. If the screen turns on but the image is dim or flickering, check this connector first.

How to choose a quality screen to replace

The quality of the new screen is not only the look and feel of the repair, but also the durability of the repair. There are three types of screens on the market for Xiaomi:

🔹 Original (OEM) — The highest quality, but also the price is higher (from 3000 to 8000) ₽ model-wise).
🔹 High quality copies (A)+) — The manufacturers clone the original screens with minimal differences: 1,500-4,000 ₽. Suitable for most users.
🔹 Cheap replicas (A-, B, C) - poor color, sensor and backlight quality: 800-2,000 ₽. Often they are incapacitated in 2-3 months.

When choosing a screen, pay attention to:

📋 Phone model – the screen should be compatible with your modification (for example, Redmi Note 10 Pro and Redmi Note 10 Pro Max have different screens!).
🔧 Components - the set should have adhesive tapes for fixing and installation tools.
📦 Seller reviews – on AliExpress or Wildberries check the rating and photos of real buyers.
🔍 Availability of warranty – even copies give a guarantee of 3-6 months.

Screen type	Pluses	Cons	Recommendation
Original (OEM)	Perfect color quality, 100% compatibility	High price, hard to find.	For flagships (Mi 13, Black Shark)
Copy of A+	Good quality for reasonable money	There may be minor differences in colors.	The Best Choice for Most People
Remark A--	Low price, quick delivery	Poor sensor sensitivity, rapid wear and tear	Only for temporary replacement.

⚠️ Attention: AliExpress often sells screens with already installed glass, but without a frame. Check with the seller whether the package includes adhesive tape for fixation - without it, the screen will "walk" and quickly fall off.

How to distinguish the original screen from the copy?

The original Xiaomi screens have: 1. Tianma or Samsung logo on the plume (copies often don’t have markings). 2. Smooth backlight without yellowness at the edges. 3. Clear sensor operation throughout the screen (copies often have “dead zones” at the corners). 4. Factory film with a hologram on the inside of the glass.

Common Mistakes and How to Avoid Them

Even experienced wizards sometimes make mistakes when replacing the screen with Xiaomi, and here are the most common mistakes and ways to prevent them:

🔌 Damage to battery plume - always turn off the battery first thing, even if the phone is off.A short circuit can burn the power controller.
🔥 Overheating of the screen with a hairdryer - if the temperature is above 80°C, the glue melts too much, and the screen can float. Use a thermometer or heat in short intervals.
🔧 Incorrect installation of plumes – if the screen does not work after assembly, check if the connectors of the backlight and sensor are mixed up (in some models they are similar).
💧 Liquid hits the board - isopropyl alcohol must completely evaporate before assembly. Don't blow on the board with your mouth - use a fan.
📱 Ignoring testing — always check the screen before final assembly. If something doesn't work, it'll be easier to disassemble the phone again.

Another common problem is the moire effect after replacement, which is caused by:

Incorrect installation of the screen (gaps between the glass and the matrix).
Low quality copies (cheap screens often have a backlight defect).
Damage to the backlight plume (check the connector on the board).

If moiré appears, try:

Reset the screen, making sure it fits tightly to the frame.
Update the phone’s firmware (sometimes display bugs are fixed in new versions) MIUI).
Return the old screen and check if the problem persists - if so, the motherboard is to blame.

When is the best time to contact the service center

While it is possible to replace the charging screen with Xiaomi at home, there are some cases where it is better to trust the professionals:

🔧 If you’ve never taken your phones apart, the risk of damage to plumes or boards is too high.
💥 If the phone got into the water - corrosion on the board may require soldering work.
🔋 If after replacement the screen does not turn on at all (no backlights, sounds, vibrations) - it is possible that the motherboard is damaged.
📱 If you have a flagship model (Xiaomi 13 Ultra, Black Shark 5 Pro) – the cost of error (damage to the camera or cooling system) may exceed the savings.

The average cost of screen replacement in service centers:

Xiaomi model	Cost of work (₽)	Screen price (₽)	Totally (₽)
Redmi Note 10/11	1 500–2 500	2 000–4 000	3 500–6 500
POCO X3/X4	2 000–3 000	2 500–5 000	4 500–8 000
Xiaomi 12/13	3 000–5 000	5 000–10 000	8 000–15 000

When choosing a service center, pay attention to:

📋 Reviews – check Google Maps or Yandex.Reviews.
🔧 Guarantee – minimum work guarantee must be 3 months.
💬 Transparency – The wizard should show you the old screen and explain the cause of the breakdown.

⚠️ Note: In official service centers, Xiaomi often refuses to repair phones with autopsy marks. If you start disassembling the phone, but something went wrong, do not hide it from the master.

Frequently Asked Questions (FAQ)

Can you replace the entire screen, not the entire module?

Technically, yes, but in practice, it is not practical for most Xiaomi models.In modern smartphones, glass is glued to the matrix and touch layer (technology). OGS Separating these layers requires special equipment (laminator) and often causes damage to the matrix, except for the replaceable glass model (for example, Xiaomi Mi Mix). 2S), The cost of replacing only the glass in the service is comparable to the cost of a new screen, so it is easier and more reliable to change the entire module.

Why does the phone not see charging after changing the screen?

This problem occurs in 30% of cases and is usually associated with: Damage to the charging plume - it passes next to the screen plumes and can be affected during disassembly. Improper connection of the screen - in some Xiaomi models, the screen plume is associated with the power controller. Firmware failure - after changing the screen, the charging calibration may be lost (try resetting to factory settings). Solution: Check the charging plume for damage. Reconnect the screen plumes. Update the firmware through Settings → The phone. → Updating the system.

How long does it take to replace the screen?

Time depends on the experience and model of the phone: Beginner: 2-4 hours (including screw search and testing); Experienced user: 40-90 minutes; Service center: 1-2 hours (with warranty); The longest stages are neat screen separation (due to glue) and testing after assembly.

Can I use a screen from another Xiaomi model?

No, you can't. Even if the screens look similar (like the Redmi Note 10 and the Redmi Note). POCO X3 NFC), They have: different plumes, different resolution and refresh rates, incompatible sensor drivers, with the exception of some Redmi models and the exception of the new model. POCO on a single platform (for example, Redmi Note 10 Pro and POCO X3 Pro, but there is also a compatibility check required.

What if the screen is working after the replacement, but the sensor is not?

This is a typical problem that arises from: 🔌 Unconnected sensor plume – check if it sits tightly in the connector. 🔧 Trail damage – inspect it for tears or bent contacts. 📱 Screen incompatibility – cheap copies often have dead zones". 🔄 Calibration failure - try resetting the sensor settings via the engineering menu (##6484##.) If the plume is intact and connected correctly, but the sensor is not working - the screen is defective.