Xiaomi Glass Replacement: A Complete Guide from Disassembly to Assembly

Broken glass on Xiaomi is a problem that almost every second owner faces. Even with a protective film or cover, a fall from a height or a failed blow can lead to cracks, chips or complete destruction of the display module. In service centers, they ask for a glass replacement from 3,000 to 15,000 rubles depending on the model, but with the patience and the right tools, this procedure can be performed independently.

In this article, we will look at all stages of glass replacement, from damage diagnosis to final assembly, which Xiaomi models allow for separate glass replacement without a sensor, and where you will have to change the entire display module, and we will reveal the secrets of choosing quality parts, tell you where to buy them, and warn against the typical errors that lead to a broken touchscreen or backlight.

If you’ve never disassembled a smartphone, don’t be afraid: modern Xiaomi (like the Redmi Note 12 or the Redmi Note). POCO X5) We've designed them to be modular, but the key is to follow the instructions and not rush, and for flagships like the Xiaomi 13 Ultra, we've developed some guidelines for how to work with curved screens.

Diagnosis of damage: when only glass can be replaced and when a new display is needed

Before ordering parts, you need to determine exactly the nature of the damage, which depends on whether you have to change only the glass or the entire display module (including the matrix and touch screen).

Here are the key signs that should be noted:

• 🔍 Cracks without disturbing the sensor: if the screen responds to touch, and the image is not distorted, you can limit yourself to replacing only glass. OLED-screens (e.g. Xiaomi) 12T or Redmi K50), where the glass is often separated from the matrix.
• 📵 Part of the screen is not working: if the touchscreen does not respond to touch in certain areas, but the image is normal, the problem may be a damaged sensor plume, in which case the entire display module will need to be replaced.
• 🖥️ Artifacts in the image: stripes, flickering or broken pixels indicate damage to the matrix.
• 💡 The backlight does not work: if the screen is dark, but in bright light you can see the image, the problem is: LED-In most cases, this requires replacing the entire module.

Pay special attention to models with AMOLED-In these cases, the glass is often glued directly to the matrix, and trying to separate it without special equipment can lead to irreversible damage to the pixels.

⚠️ Note: On Xiaomi models with Always-On Display (e.g. Xiaomi) 12S Ultra) even microcracks can eventually cause pixels to burn out. If you notice a defect, don't delay repairs!

If you're not sure about the diagnosis, use the screen test.

1. Install Screen Test from Google Play.
2. Select the Touch Test (for sensor) and Color Test (for matrix).
3. If the test shows green lines or non-responsive zones, prepare to replace the entire module.

Preparation for replacement: tools and spare parts

Successful glass replacement depends on the quality of tools and parts, so don't skimp on this stage -- cheap glue or poor-quality glass can make all the effort go wrong. Here's a full list of what you'll need:

Main instruments:

• 🔧 Set of screwdrivers (cross-cross-haul) PH00 and PH0, 1.5mm flat, five-beamed for Xiaomi).
• 🔥 Heat dryer (power 300-500 W) or building dryer with temperature adjustment.
• 🧲 Suction cups (2 pcs) for removing glass and battery.
• 📏 Plastic mediators (0.1–0.3 mm) for separation of glued parts.
• 🧴 Clay. B-7000 or LOCA (fixing).
• 🧼 Isopropyl alcohol (90%+) surface-cleaner.
• 🛠️ Antistatic bracelet (optional, but recommended for static protection).

Parts:

• 📱 New glass (original or qualitative analogue of the OEM-producer).
• 🔋 Double-sided tape for fixing plumes (if it comes complete with glass).
• 🔌 New battery plume (if the old one is damaged during disassembly).

Where to buy spare parts:

• 🛒 AliExpress is cheap, but it's a high risk of getting faked. Look for 98-rated sellers%+ and photo reviews.
• 🏬 Local service centers – often sell original parts at wholesale prices.
• 🌍 Specialized sites like Fixez.com or RepairUniverse are more expensive, but they guarantee quality.

⚠️ Note: When buying glass for models with Always-On Display (such as Xiaomi 13), check with the seller whether the spare part supports this feature!

The cost of spare parts varies:

• Glass for Redmi Note 10: 800–1,500 ₽.
• Full display module for Xiaomi 12 Pro: 6000-12,000 ₽.
• The original glue. LOCA (10 ml): 300-500 ₽.

Remove all metal objects (to avoid statics)|

Cover the table with a soft cloth or rubber mat|

Connect the dryer to the network and check the temperature (not higher than 80)°C)|

Prepare containers for screws (sign them!)|

Wear an antistatic bracelet (if you have one)-->

3. Step-by-step instruction: how to remove broken glass

This is the most critical stage. Take your time, one wrong move can damage the plumes or the matrix. Follow the instructions strictly by the steps.

Step 1: Turn off and warm up your smartphone

Before disassembling completely turn off the phone and remove SIM-Then the map:

1. Plug on the screen protective film (so as not to scratch the matrix with fragments).
2. Warm the glass with a hair dryer for 2-3 minutes, keeping it at a distance of 5-7 cm Temperature - 60-70°C (not higher!).
3. Try to tamper with a plastic mediator from the corner. If it doesn't, warm up for another 1 minute.

Step 2: Separation of glass from the body

When the glue softens, act like this:

1. Raise the glass with a suction cup (if it is not completely cracked).
2. Carefully swipe the mediator around the perimeter, separating the glass from the frame. Don't push too hard - plumes pass under the glass!
3. If the glass has split into pieces, remove them one by one, starting with the largest fragment.

On curved-screen models like the Xiaomi Mi 11 Ultra, the glass is particularly tightly glued, and a special thread to separate the displays (sold in repair kits) will help. Saw it under the glass in sawing movements.

Step 3: Cleaning the matrix from glue residues

After the glass is removed:

1. Remove the remains of the glue from the matrix with isopropyl alcohol and a lilac-free napkin.
2. Check the integrity of the plumes. If they're torn, they'll have to be replaced.
3. Apply a thin layer of new glue to the frame (for example, B-7000) And let it dry for 5-10 minutes.

⚠️ Note: On Xiaomi models with Face Unlock (e.g, POCO F4) There's an infrared sensor under the glass, and don't damage it when you clean it, or the face unlock will stop working!

Installation of new glass: nuances for different models

The process of installing a new glass depends on the type of screen and design of the smartphone.

For models with IPS-screens (Redmi) 9/10, POCO M3/M4)

The glass is separated from the matrix, so the process is simpler:

1. Apply a thin layer of glue to the frame B-7000 or LOCA.
2. Apply the new glass carefully, aligning it at the edges.
3. Press the glass and remove the excess glue with a napkin.
4. Place the phone under the press (you can use a heavy book) for 1-2 hours.

For models with AMOLED (Xiaomi 12/13, Redmi K50)

The glass is often integrated with the matrix, so:

1. Use a special glue LOCA (It's clearer and thinner).
2. Apply glue point-by-point, avoiding hitting the pixels.

For models with 3D-Xiaomi Mi 11 Ultra, Black Shark 5)

Curved screens require a special approach:

• Use a flexible glue (for example, LOCA UV, solidifier).
• After installation, check the sensitivity of the screen edges – they often suffer from improper gluing.

For all models after installation of glass:

1. Connect the battery and check the sensor (use Touch Test in Engineer Mode).
2. Make sure there are no yellow spots (a sign of improper gluing).
3. If the screen flickers, then the glue hit the contacts of the plume - you will have to redo it.

💡

Before the final build, take a picture of the location of all the plumes and screws, which will help to avoid errors in the reverse build, especially if you are disassembling Xiaomi for the first time.

5. Common Mistakes and How to Avoid Them

Even experienced glass makers sometimes make mistakes when replacing glass, and here are the most common ones and ways to prevent them:

• 🔥 Overheating of the matrix: if you hold the hair dryer too close, you can damage the liquid crystals (on the surface). IPS-screens) or organic LEDs (on AMOLED). Solution: Keep the hair dryer 5-7 cm away and don't heat one zone for longer than 30 seconds.
• 🧲 Metal shavings: Using poor-quality mediators, metal particles can remain under glass and cause artifacts. Solution: Use only plastic or wooden tools.
• 💧 Excess glue: if there's too much glue, it can leak in and damage the plumes. Solution: apply the glue thinly and remove the excess immediately.
• 📱 Incompatible glass: cheap counterparts may not support Always-On Display or have poor sensitivity. Solution: buy parts only from trusted sellers with a guarantee.
• ⚡ Battery plume damage: if you sloppyly remove the glass, you can break the battery plume. Solution: before disassembling, turn off the battery (if possible) or work as carefully as possible.

Another common problem is that the touchscreen is broken after replacement, and the reasons may be:

• Poor contact of the sensor plume (check if it is pressed tightly).
• Damage to flexible cable (the plume needs to be replaced).
• Incompatible firmware (some Xiaomi requires flashing after replacing the display).

⚠️ Note: On Xiaomi models with Dual Apps feature, the multi-touch calibration may be lost after the glass is replaced. To fix this, go to Settings → Additionally. → Calibrate the screen and perform the procedure again.

💡

If the glass has been replaced and the screen has become less bright or has been damaged, you probably used a low-quality glue. LOCA.

Calibration and post-replacement testing

Successful glass replacement is only half the battle, and to make a smartphone work as it used to, you need to:

Sensor calibration

Some Xiaomi models (especially with the AMOLED-After the glass is replaced, software calibration is required:

• 📱 Using Engineer Mode: Enter the dialer code ##3644633##. Select Touch Screen Test → Touch Screen Calibration. Follow the instructions on the screen (usually click on the crosses that appear).

Mi Flash Tool

:

If something doesn't work properly, don't panic. In 90% of cases, the problem can be solved.

• Glass regression (if there are artifacts).
• Update the firmware (if the sensor is bugging).
• Replace the plume (if part of the screen does not respond).

💡

If the phone is discharged faster after the glass is replaced, check if the battery plume is damaged, sometimes it is overburdened when disassembling, which leads to increased power consumption.

7. Alternative ways: when to change the glass yourself is not worth it

Despite the detailed instructions, there are situations where it is not advisable to replace the glass on your own.

• 📱 Flagship models (Xiaomi 13 Ultra, Black Shark 5 Pro): their screens often have a complex structure with several layers, and without experience you can damage the matrix.

How much does it cost to replace glass in the service:

If you do decide to use the service, choose a proven workshop.

• 📜 Guarantee (minimum 3 months for work and spare parts).
• 🔧 Equipment (must be a vacuum press and a UV lamp for LOCA).
• 💬 Reviews (read on Yandex.Maps or 2GIS).

FAQ: Answers to Frequent Questions