Security glass on Xiaomi is not a luxury, but a necessity to keep the screen from scratches, chips and cracks. Even the most careful users face micro-damages to the display, which over time spoil the appearance of the smartphone and reduce its cost when resold. However, many owners of Redmi, POCO or flagship models Xiaomi 13/14 make critical installation errors, which cause the glass to depart after a day or become covered with bubbles.
In this article, we will discuss not only the basic technology of gluing, but also the nuances that are not mentioned in the standard instructions: how to avoid dust under glass, why you should not use alcohol for cleaning, and which Xiaomi models require a special approach (spoiler: this is Xiaomi Mix Fold and devices with curved screens).
1. Which protective glass to choose for Xiaomi: comparison of types
The market offers dozens of glass options, but not all of them are equally effective. The main criteria for choosing: thickness, material and coating. For example, for Xiaomi 13 Ultra with its convex camera module, only fits. 3D-glass with cutouts, and for the budget Redmi Note 12 will be enough and classic 2.5D.
Let's look at the key differences:
| Type of glass | Thickness | Protection | Complexity of installation | Suitable for models |
|---|---|---|---|---|
| 2.5D (standard) | 0.15-0.3 mm | From scratches (up to 6H) | Easy. | Redmi 10/11/12, POCO X3/X4 |
| 3D (full coverage) | 0.2-0.33 mm | From impacts and scratches (up to 9H) | Medium | Xiaomi 12/13/14, Mix 4 |
| Hybrid (glass + film) | 0.1–0.2 mm | From scratches + anti-glare | Hardly. | Xiaomi Pad 6, Black Shark |
| Temperated (premium) | 0.33-0.5 mm | From heavy impacts (up to 9H+) | Very difficult. | Xiaomi 14 Ultra, Mix Fold 3 |
Important: For models with a fingerprint sensor under the screen (for example, Xiaomi 13T Pro), choose glasses marked "Ultrasonic Fingerprint Compatible" - otherwise the scanner will stop working.
Also, look at the oleophobic coating, which prevents finger marks, which is worn in 2-3 months in cheap glass, and in premium glass, such as Spigen Glas.tR EZ Fit, which lasts 1-2 years.
Preparation of the smartphone: what to do before installation
80 percent of newcomers fail to clean the screen properly, and even microscopic dust or fat particles will cause bubbles or windows to detach within a week.
- Turn off your smartphone – this will prevent accidental touch and the sensors from turning on.
- Remove the cover and old protection (if any). Use a plastic spatula to avoid scratching the screen.
- Clean the display with a special microfiber napkin (included in the glass kit). Do not use alcohol or wet wipes - they leave a divorce!
- Remove the dust with tape. Put a sticky tape on the screen (usually in a set) and rip it off.
If the kit does not contain a napkin or scotch, buy separately lilaless napkins for optics and paint tape (2-3 cm wide). For models with curved edges (Xiaomi 11T Pro), additionally treat the side parts of the screen with a dry brush.
Remove the cover and old protection |
Turn off the smartphone |
Wipe the screen with a dry microfiber |
Remove dust with sticky tape |
Check the lighting (you need bright light)-->
⚠️ Warning: If there are traces of old glue on the screen, remove them with isopropyl alcohol (70%+) But don't overdo it, alcohol can damage the oleophobic coating of the display!
3. Step-by-step instruction: how to glue glass without bubbles
Now, to the most important stage, follow the instructions strictly on the points, without missing the steps:
- Unpack the glass and check the equipment: the glass itself, napkin, scotch, sticker for centering (if any).
- Remove the transport film from the inside of the glass (usually blue or green).
- Put the glass on the screen without pressing to see if the cutouts for the speaker and the camera match. If you have a positioner sticker, use it.
- Carefully lower the glass from one edge, avoiding bias. Start at the top of the screen.
- Smooth the bubbles with a credit card or a special scraper (movements from the center to the edges).
For curved screen models (Xiaomi Mix Fold, Xiaomi 13 Ultra), the process is more complicated:
- 🔹 Use flexible 3D-glue-glass.
- 🔹 Heat the glass with a hair dryer (temperature 40–50)°C) for better fit.
- 🔹 Smooth from center to side, paying special attention to rounded parts.
If you have small bubbles left after installation, don't panic, they will disappear after 12 to 24 hours, when the glue is evenly distributed. Large bubbles (more than 2 mm) indicate dust intake, in which case the glass will have to be reglased.
What to do if the glass is peeled off at the edges?
4 Common Mistakes and How to Avoid Them
Even the most experienced users sometimes make bad mistakes. TOP-5 failures and their consequences:
- 🚫 Use of household scotch instead of sticky tape from the kit → There are still traces that spoil the adhesion.
- 🚫 Installation on the enabled smartphone → sensors can work and displace the glass.
- 🚫 Fingers-smoothing → skin fat remains on the glue layer.
- 🚫 Ignoring dust → bladders and detachment after 1-2 days.
- 🚫 Buying Glass Without Notches for Sensors → The fingerprint scanner or speaker stops working.
Owners of the POCO F5 and Xiaomi 12 Lite are particularly affected, because these models have very sensitive proximity sensors that are blocked even by a thin layer of glue. Before buying glass, check if the description is marked "Sensor Compatible".
⚠️ Warning: If the glass is pressed (bending and clicking) after installation, it is a sign of poor-quality glue. This glass will not protect the screen when it falls - replace it with a model with a silicone adhesive (for example, AmFilm Ultra Glass).
5. Features of installation on popular Xiaomi models
Not all Xiaomi smartphones are the same — some have design nuances that make it difficult to install glass.
| Model | Feature | Recommendations |
|---|---|---|
| Xiaomi 13 Ultra | Convex camera module | Use glass with a cutout under the camera or 3D-flexible-edge. |
| Xiaomi Mix Fold 2/3 | Folding screen | Only ultrathin glass (0.1–0.15 mm) with glue throughout the area. |
| POCO X5 Pro | Side-mounted fingerprint sensor | Check the compatibility of the glass with the side scanner (the cutout must be accurate). |
| Redmi Note 12 Pro+ | Curved edges | 3D-full-coated glass and thermoactive glue. |
For the Xiaomi Pad 6 and other tablets, the installation process is similar, but requires more care because of the larger screen, and it’s better to work together: one holds the glass, the other irons.
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If you install glass on Xiaomi with AMOLED-screen (e.g. Xiaomi) 12S), After you stick it, check the color rendering. Cheap glass can give you a yellowish hue, in which case you can replace it with a model with optical adhesive (for example, Whitestone Dome Glass).
6. Care for the protective glass: how to extend its service life
Even the most expensive glass won't last long if it's not properly cared for. Here are 5 rules that will prolong your life as a protector:
- 🧼 Wash your hands before using your smartphone – fat and dirt destroy the oleophobic coating.
- 🧴 Use special wipes for cleaning (without alcohol and abrasives!).
- 📱 Avoid heavy screen pressure (for example, when you put your phone in your pocket with your keys).
- 🔥 Do not leave your smartphone under direct sunlight – the glue can melt.
- 🔄 Change the glass every 12 to 18 months, even if it is whole – over time, the protections weaken.
If you have deep scratches on the glass, don't try to polish them, it will only worsen the protection. Better replace the glass right away. For models with an ultrasonic fingerprint scanner (Xiaomi 13 Pro), even small scratches in the sensor area can cause malfunctions.
7. Safety glass alternatives: when it is not suitable
Glass is not a good choice in some cases, so let's look at the alternatives.
- 🛡️ Liquid glass (nano coating) – suitable for Xiaomi with curved screens, but does not protect against shocks.
- 📄 Hybrid film is thinner than glass, but worse protects against scratches (suitable for Redmi). A2 or POCO C50).
- 🔄 Self-healing film – Recovers small scratches, but expensive and difficult to install.
Liquid glass is applied as a polyrene and lasts 6-12 months, but it can not be combined with ordinary glass – this will worsen the sensory sensitivity. For models with a subscreen camera (Xiaomi Mix 4), it is better to choose ultrathin glass (0.1 mm) so as not to impair the quality of the selfie.
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If you drop your phone frequently, choose a tempered glass 0.33-0.5mm thick with a protection rating. 9H+. For everyday use, it is sufficient and 2.5D-oleophobic.