How to glue glass on Xiaomi smartphones: from the choice of materials to finishing

Replacing broken glass on a Xiaomi smartphone is a challenge that almost every owner of this brand’s devices faces. Even with careful handling, falls, bumps or factory defects can lead to cracks, chips or complete destruction of the protective layer. The service center will charge from 2,000 to 8,000 rubles (depending on the model), but with patience and the right tools, you can cope on your own – saving time and money.

In this article, we will look at all the steps of the process, from the diagnosis of damage to the final polishing of the new glass (LOCA, OCA, UV-Adhesives, tools (suction cups, mediators, infrared lamp) and typical errors that lead to glass detachment or damage to the matrix. POCO, But we will specify the nuances for devices with AMOLED-screens LCD-display.

We warn you right away: the procedure requires maximum accuracy. One wrong move can lead to irreversible damage to the plumes, sensor or matrix itself. If you are not sure about yourself, you should contact the professionals. For those who are willing to take the risk, below you will find a step-by-step guide with photos, video recommendations and adhesive compatibility tables for different Xiaomi models.

Diagnosis of damage: when you can glue the glass yourself, and when not

Before you buy new glass and glue, consider the scale of the problem. Not all damage can be repaired at home:

• 🔍 Only cracks on the glass without disturbing the sensor is an ideal case for self-repair.
• 📱 "The "web" across the screen with preserved sensitivity - also amenable to replacing glass.
• ⚠️ Black spots or stripes under the glass are a sign of damage to the matrix.
• 🚫 The screen does not respond to touch or displays artifacts – self-repair can aggravate the problem.

Especially carefully approach the devices with AMOLED-screens (for example, Xiaomi 13 Pro, Redmi) K60). In them, the glass is often glued directly to the matrix, and its separation without special equipment (laminator) can damage the pixels. LCD-displays (e.g., displays, POCO X5, Redmi Note 12 is usually easier to process.

⚠️ Warning: If the smartphone overheats, discharges quickly or does not turn on after a fall, the problem may not be in the glass, but in damage to the battery or motherboard.

2.Selection of glass and glue: what is right for Xiaomi

The quality of the materials is 80 percent the end result, and cheap glass and glue can cause a week's detachment, bubbles, or color distortion.

Types of glass

• 🔹 The original glass (OEM) — Perfect for sleds, but expensive (1500 to 5000 rubles.). Suitable for flagships (Xiaomi 14, Mix Fold 3).
• 🔹 Premium analogues (e.g. from Tianma or BOE) — They are not inferior to the original, but cheaper 30-40%.
• 🔹 Budget counterparts (Chinese no-name) - may have the worst oleophobic coating and thickness. ~20%.

Types of glue

For most models, Xiaomi is optimal. LOCA-glue-like 500-1000 cPs. It provides a strong adhesion and allows you to adjust the position of the glass during the 1-2 For a minute. AMOLED-screens are better used OCA-thickness 0.1-0.15 mm, as liquid glue can leak under the matrix and cause spots on the display.

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Before buying glass, check its compatibility with your model. IMEI For example, glass for the Redmi Note 11 Pro is not suitable for the Redmi Note 11 Pro.+ 5G because of the different sizes of the camera.

3. Tools required: what to buy to replace glass

Without the right tools, the process will become anguish.

• 🛠️ Set of mediators (plastic and metal) - for separation of glass.
• 🧲 Suction cups (2 pcs) – to lift glass and matrix.
• 🔥 Infrared lamp or hair dryer - to soften old glue.
• 💡 UV-lamp (365 nm) - if you use LOCA or UV-glue.
• 🧴 Isopropyl alcohol (99%) – for cleaning surfaces.
• 🧻 Whipless wipes and sticky rollers - to remove dust.
• 📏 Calibration gaskets - to level the gaps.

For models with AMOLED-screens will be required additionally:

• 🔧 The book is a book of light, and it is a book of light. OCA-film.
• 🧪 Ultraviolet glue primer - for better adhesion.

⚠️ Warning: Don't use a household hair dryer instead of an infrared lamp! It creates uneven heating, which can damage plumes or battery. Optimal temperature for separation of glass — 60-70°C.

4. Step-by-step instructions: how to remove old glass

This is the most critical stage. Mistakes here can lead to damage to the matrix or to the break of the plumes.

1. Turn off your smartphone and remove it. SIM-It's not necessary to disconnect the battery, but if you're a beginner, it's best to do this to avoid short circuits.
2. Heat the screen with an infrared lamp during the 3-5 Keep her at a distance. 5-7 see, evenly floating on the surface.
3. Put a mediator in the glass from any angle, and if it doesn't lend itself, warm it up again. 1-2 - Don't force yourself!
4. Carefully separate the glass using suction cups. AMOLED-screens matrix is often glued to glass - here you need special care.
5. Remove the glue residue with isopropyl alcohol and sticky roller. Do not use acetone - it can damage the oleophobic coating of the matrix.

If the glass is broken into small pieces, paste it with tape to prevent the particles from breaking apart. 3D-glass (for example, Xiaomi Mi 11 Ultra) process is complicated due to curved edges – here you may need a special machine for cutting.

Installation of new glass: adhesion technology

Now, the most critical part is that the technology depends on the type of glue.

For LOCA-glue:

1. Apply the glue to the matrix with zigzag movements, avoiding the edges (retreat). 1-2 mm).
2. Carefully apply the glass, starting at one end. Don't push, the glue will spread itself.
3. Put the smartphone under UV-lamp-light 5-7 minutes for pre-polymerization.
4. Make sure there are no bubbles. If you have any, squeeze them gently with a mediator to the edge.
5. Full polymerization takes 24 hours – don’t use your phone.

For OCA-film:

1. Remove the protective layer from the film and attach it to the matrix, avoiding dust.
2. Roll the roller from the center to the edges to remove the bubbles.
3. Remove the second protective layer and apply the glass.
4. Place it under a laminator or a heavy book on 10-15 minute.

For models with IP68 (For example, Xiaomi 13 Pro) after gluing the glass, you need to restore tightness. To do this, use liquid rubber on the edges of the display and let it dry for 12 hours.

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The most common mistake is not cleaning the matrix sufficiently of the old glue, and even microscopic dust particles or adhesive residues will lead to bubbles or detachment of the new glass.

6. Common mistakes and how to avoid them

Even experienced craftsmen sometimes make mistakes, and here are the most common ones and ways to prevent them:

• 🌡️ Overheating of the matrix - leads to deformation or detachment of the polar explorers. Solution: use an infrared lamp with a thermometer and do not exceed 70°C.
• 💦 Moisture in the glass causes the plumes to corrosion. Solution: work in a dry, humid room. <50%.
• 🔍 Uneven adhesion causes distortion of the image. Solution: use calibration pads and check the gaps.
• ☀️ Insufficient UV-polymerization -- the glass will fall off in a few days. Solution: extend the exposure time to 10-15 minute.
• 🧲 The damage to the plumes by the mediator causes the sensor to lose sensitivity. Solution: use only plastic mediators.

If you change the glass, you get a swell under the screen, it means that the glue was unevenly applied, and then you have to re-glue the glass. AMOLED-Screens of divorce may appear due to hitting LOCA-glue on the matrix - here only the replacement of the display module will help.

⚠️ If after changing the glass, the smartphone stopped seeing SIM-card or not charging, you've probably damaged the antenna plumes or charging contacts, and you need a diagnosis at the service center.

Final inspection and calibration

After polymerization of the glue, it is necessary to check the operability of the device:

1. Turn on your smartphone and check if there are artifacts on the screen (bands, spots, flickers).
2. Test the sensor using the Touch Screen Test app (available on Google Play).
3. Check the tightness (for models with the IP68): Lower your phone in water for 10 seconds (no deeper than 1 m).
4. Calibrate the screen if there is a touch offset: go to Settings → Display. → Screen calibration.

If the sensor is not responding correctly (for example, touching is side-shifted), it may mean that the glass is skewed, in which case you will have to repeat the adhesion procedure (POCO F5, Redmi K70) Also check the smoothness of the scrolling - jerks may indicate problems with the display driver.

FAQ: Frequent questions about replacing glass with Xiaomi