How to Glue the Security Glass on Xiaomi Phone: A Step-by-Step Guide

A security glass on Xiaomi is not just an accessory, but a necessary barrier between your smartphone’s fragile screen and an aggressive environment. Even a micro-crack on the display can eventually turn into a web of faults, and replacing the screen will cost 30-70% of the cost of a new phone. But here’s the problem: 68% of users (according to service centers) glue the glass incorrectly, which causes it to peel off in a week or become covered with bubbles. This article is not about “Ap and pin” but about the technological process of taking into account the features of Xiaomi screens – from Redmi Note to 14 Ultra.

We're going to look at not only the basic instructions, but also the hidden nuances that the accessories manufacturers don't mention. POCO F5 often "steps away" at the edges (spoiler: the rounded shape of the screen is to blame), how to avoid the effect of "rainbow divorces" on the OLED-Xiaomi displays 13T, And why 90% of the cheap AliExpress glasses spoil the sensor in a month, and you'll also learn which tools from the 199 roubles set are really needed and what you can do without.

Important: If you have never glued glass yourself, do not run for the most expensive option with the glass. 9H Start with the budget (~300-500₽) — This will allow you to "fill your arm" without risking a premium accessory.

1. Which security glass to choose for Xiaomi: comparison of types and brands

The market of protective glass for Xiaomi is full of options – from “noname” for 99₽ Spigen or AmFilm for 1500₽+. But price doesn't always guarantee quality, because it's about model compatibility and manufacturing technology. 12S Ultra with curved screen needs glass with technology 3D Curved, otherwise there will be gaps on the edges.

Here are the key parameters that should be considered:

• 🔹 Thickness: Optimal — 0.2-0.33 Thin glass (0.15 mm) are less protective against impact, thick (> 0.4 mm) reduce sensor sensitivity.
• 🔹 Toughness: 9H — The real Mohs hardness of most of the glass — 6-7H, But that's enough to protect you from scratches.
• 🔹 Coverage: Oleophobic (repels fat) must be multilayered. Cheap glass loses its properties through the use of stainless glass. 2-3 month.
• 🔹 Adhesive base: Silicone glue is better than acrylic - it allows you to glue glass 1-2 once-free.

Compare the popular brands for Xiaomi:

⚠️ Note: If your Xiaomi has a screen with an ultrasonic fingerprint scanner (e.g. Xiaomi) 13 Pro, select a glass marked "Ultrasonic Fingerprint Compatible." Regular glass blocks the sensor signal! 2. Preparing the phone: why 90% The most common mistake is not cleaning the screen properly, even microscopic particles of dust or fat cause the glass to detach through the window. 1-2 It takes longer to prepare than the sticker itself, but it's an investment in durability: 🧴 Alcohol napkins (70% Isopropyl alcohol is not vodka, it leaves a divorce. 🧻 Whipless fabric (microfibra from the set for glasses). 💨 A compressed air balloon (or a dryer on a cold blower). 📱 Scotch (paint or stationery) to remove fine debris. Step-by-step cleaning: Turn off the phone and remove the case - it may interfere with. Wipe the screen with a wet alcohol wipe, then a dry microfiber, move from center to edges, take a tape, fold it with a hinge sticky side outside, and gently swipe around the edges of the screen. This will remove the micropyle. Blow the screen with compressed air (or a hair dryer at minimum power) at an angle. 45°. Don't direct the flow perpendicularly! check the screen under bright light - if you see divorces, repeat the steps 2-4. ☑️ Checklist before glass stickerEcran is off and cooledRemoved all stickers / films from the boxEclipse without drafts (close windows)All toolsAt handThe phone lies on a flat surface: 0 / 5 ⚠️ Warning: Don't use a household glass cleaner (like Mr. Proper)! It has silicones that leave a film that worsens adhesion. Also avoid wet wipes with flavors - they contain oils. 3. Step-by-step: how to glue glass without bubbles Now we move to the most important stage. The main rule is one chance. If the glass is crooked, you can remove and reglue it without consequences only in the first 10-15 seconds. Then the glue begins to polymerize. The algorithm of actions: Unpack the glass and examine it for defects (scrapes, chips). If there is a protective film on the adhesive side, do not remove it until the last moment! Match the glass with the notch for the speaker / camera. Don't pressing - just check the center of the glass. Check the sensitivity of the sensor — if the screen reacts with a delay, it means that the glass is too thick or poorly glued. What to do if the glass is crooked? 5-10 So, if you take a second, you can gently tuck it on one end (like paint tape) and correct it. If you've had more time, don't try to move it. It will lead to bubbles. You'd better take the glass out completely, clean the screen with alcohol and put a new one on. Video instructions often show the masters "throwing" glass onto the screen from a height 5 This is a method that only works for professionals with experience. For beginners, it's better to use the anchor method": 📍 Stick two small pieces of tape on top and bottom to the screen – they will hold the glass. 🖼️ Carefully place the glass on the scotch "anchors" and combine in cutouts. 🔍 After making sure in the correct position, tear off the scotch alternately (first upper, then lower). 💡If you have a Xiaomi with a curved screen (like the Mix 4 or 13 Ultra), use liquid adhesive (like the one you see on the phone). LOCA). It fills the microgaps around the edges. But it requires a UV flashlight to polymerize the glue. 4 Common errors and how to avoid them Even if you follow the instructions, you can run into pitfalls. Here. TOP-5 Mistakes of Xiaomi users and their solutions: Error Reason How to fix Bubbles at the edges Bad adhesion due to dust or fat Re-glued glass after re-cleaning the screen "Rainbow" divorces Cheap glass without anti-glare coating Buy glass marked "Anti-Rainbow" Glass leaves after a week Silicone glue of low quality Use glue. LOCA Or choose a brand with acrylic glue Bad sensor work Glass too thick (> 0.35 (mm) Replace with thin glass (0.2-0.3 (mm) Cracks on glass without impacts Low quality tempering (not 9H) Choose glass with Tempered Glass Certificate Pay special attention to Xiaomi with AMOLED-screens (e.g. Redmi) K50 Xiaomi 12T). These displays have a smoother surface, and the glass on them holds worse: 🔘 Use glass with reinforced adhesive base (for example, AmFilm Ultra). 🔘 Before the sticker, treat the screen with a primer (included in some sets). 🔘 After the sticker, put the phone under a heavy book for 12 hours. ⚠️ Note: If the proximity sensor stopped working on Xiaomi after the glass sticker (the screen does not go out during the call), check if the sensor hole is closed, POCO X3) 5. Care for the safety glass: how to extend its life Even the most expensive glass will not last long if it is not properly cared for: 🧼 Cleaning: Use only microfiber and distilled water. Alcohol and household chemicals destroy oleophobic coating. 📵 Storage: Do not put your phone down on hard surfaces (table, asphalt) even a small grain of sand can leave a scratch. ☀️ Temperature: Avoid overheating (do not leave your phone in the sun in your car). +50°C glue can lose its properties. 🔧 Repair: If the glass cracks, replace it right away.Cracks build up dirt and can scratch the original screen.Average lifetime of quality glass — 6-12 If it starts to cling to your fingers or gets scratched, it's a sign to replace it. Also, watch the edges, if they start to peel off, don't pull, they'll get dust, and the glass will fall off completely. 💡The oleophobic coating is erased through 3-4 You can apply a special compound to restore it (e.g. Liquid Oleophobic Coating), but this is a temporary measure. 6. Alternatives to protective glass: when it does not fit Protective glass is not a panacea. In some cases, it is better to consider alternatives: 📱 Hybrid film (e.g. Skinomi): Thin (0.1 mm), but protects against scratches. Suitable for Xiaomi with curved screens where the glass doesn't fall perfectly. 🛡️ Liquid glass (nano coating): It's applied like a varnish, fills in microcracks, but it won't save you from impacts. 🔄 Case with a neckline: If you drop your phone often, it’s better to combine glass with a bumper (like the Spigen Tough Armor).For Xiaomi with foldable screens (like the Mix Fold 3), glass doesn’t fit — it will crack when you first fold. You need a special film (e.g., Whitestone Dome for foldable devices). 7 Where to glue the protective glass, yourself or in the service? If you have never glued the glass yourself, is it worth trying? Let's compare: The criterion is self-service Cost 300-1500₽ (glass) 500-2500₽ (job + Quality Depends on skill The job guarantee (usually) 1-3 Time of month 30-60 minute 1-3 Convenience Can be done at home at any time You need to go to the service, you should choose to record the Service if you want to do it: 📱 You have Xiaomi with a curved or foldable screen. 💎 You buy a premium glass (like Whitestone Dome) where the perfect installation is important. ⏳ You don't have time to mess with the sticker: 💰 You want to save money. 🔄 You plan to train on a budget glass. 🏠 You have a clean, dust-proof room. 💡Many services offer to paste glass for free when you buy it from them, but often it's low-quality glass! Frequently asked questions (FAQ) ❓ Can you put a protective glass on an already cracked screen? Technically, but it's a temporary solution. The glass won't glue the cracks on the original display, it will only protect it from further damage. However, if the screen is completely covered with a spider, the glass may not stick due to the uneven surface. In this case, it is better to replace the display immediately. ❓ Why doesn't the glass on the Xiaomi 13 Pro stick around the edges? Xiaomi 13 Pro has a screen 2.5D-Solution: Buy a glass marked "Full Cover" or "3D Curved." Use liquid glue. LOCA For better adhesion around the edges, accept small gaps (they don't affect the defense of the central part). ❓ How do you remove old glass without damaging the screen? Use a thread or credit card: Push the glass from the corner with paint tape. Put a thread under it and saw it back and forth until the glass is gone. Remove the glue residues with isopropyl alcohol. Don't use a knife or metal objects, they scratch the screen! ❓ How long can you not use the phone after the sticker? 2-4 The total polymerization of the glue is 24 This time of the hour: ❌ Do not put your phone in your pocket (may move from friction). ❌ Do not wash your hands with your phone (moisture under glass) = bubble). ❌ Do not use a cover (it can squeeze bubbles around the edges). ❓ Does it really make the screen look worse? Yes, but not much. Modern glass has transparency. 99%+, But: AMOLED-screens (e.g. Xiaomi) 12S) You may get a slight yellowish tint. Some of the glass has an anti-reflective coating that scatters light slightly (the "fat" effect (> 0.35 mm) may reduce the brightness by 5-10%. If you are critical of image quality (for example, you are a photographer), consider ultrathin glass (0.15-0.2 mm) or hybrid film.