The security glass on Xiaomi Redmi 8 is not a luxury, it's a necessity. Even with careful use of micro-damage, the screen accumulates over time: scratches from keys in your pocket, grains of sand on the table, accidental falls. But here's the problem: 80% of users glue glass crooked, with bubbles or dust under the film. Why is this happening? It's not the lack of skill, but the little things that are not written in the standard instructions.
The Redmi 8 screen has a specific 2.5D-And the edges are bent and the oleophobic coatings are complicated, and if you don't take those things into account, the glass will either fall off in a week or it will float around the corners. This article is a step-by-step algorithm that takes into account all the nuances of the model, including the choice of glass, surface preparation and the secrets of perfect gluing, and also a table of compatibility of glasses with covers and answers to frequent questions that are not covered even in service centers.
The glass on the Redmi 8 is different from the other Xiaomi smartphones, where it is important to consider the height of the camera (it protrudes by 1.2 mm) and the radius of the display. Standard "universal" glasses are often not suitable: they either do not cover the entire surface or prevent the cover from closing. So the first step is to choose the right material.
1.What kind of protective glass is suitable for Xiaomi Redmi 8
There are three types of glass on the market, but only two of them are really suitable for the Redmi 8:
- 🔹 2.5D-A rounded glass is the best option. It covers the screen completely, including the rounded edges, but requires precise installation. EZ Fit or AmFilm Ultra Glass.
- 🔹 Flat glass with a black frame is cheaper, but leaves 0.5-1 mm unprotected at the edges. This is suitable if you use a bumper case. Example: Nillkin H+ Pro.
- ❌ 3D-Full-coated glass -- not recommended. They even close the speaker and the sensors, but on the Redmi 8, it causes sensor sensitivity issues.
The critical parameter is thickness. The Redmi 8 is optimal.
- 📏 0.3 mm – balance between protection and tactile sensations.
- 📏 0.5 mm – maximum strength, but can impair sensor responsiveness (especially in games).
Important: Check the compatibility of the glass with your case. For example, Spigen glass with a thickness of 0.33 mm conflict with Ringke Fusion-X cases - the glass will rise in the corners.
How to verify the authenticity of glass before buying?
Screen Preparation: Why 90% of Users Do It Wrong
Most people's mistake is using alcohol or wet wipes to clean the screen, which destroys the Redmi 8's oleophobic coating, making the Later glass worse glued.
- Turn off your smartphone and let the screen cool to room temperature (if it was heated).
- Use a dry microfibre wipe (such as from a glasses kit) to remove dust.
- Apply 1-2 drops of isopropyl alcohol 70% on the second microfiber and wipe the screen in one motion from the center to the edges.
- Blow the screen with compressed air (you can use a can to clean the keyboard) – this will remove microdust from the speaker and connectors.
Critical detail: Redmi 8 has a microscopic gap between the glass and the body around the front camera, and it's often dusty. Blow this place out especially carefully.
Remove the case and SIM cards | Turn off the phone and let cool |Wash the screen with dry microfiber |Turn with alcohol (70%!) once |Blow with compressed air (especially edges) |Do not touch the screen with your hands after cleaning
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If you don't have compressed air, the alternative is dust removal tape, glue it to the screen and rip it off 2-3 times, which will remove up to 95% of the microdust, but it won't replace a full-blown alcohol cleaning.
⚠️ Note: Do not use household detergents (such as Mr. Proper) or wet wipes for office equipment – they leave a film that worsens the adhesion of the glass.
3. Step-by-step instruction: how to glue glass without bubbles
The installation process takes no more than 5 minutes, but requires preparation.
- 📱 Protective glass itself (remove transport film only before installation!).
- 🧴 Scotch for dust fixation (optional).
- 💡 Bright lamp or flashlight (for checking bubbles).
- 📏 Plastic card or mediator (for air extrusion).
Step 1. Positioning the glass
Carefully apply the glass to the screen without removing the bottom film and check the match of the camera cutouts and speaker. Redmi 8 critically, so that the glass does not close the infrared port (located to the right of the camera). If everything matches, bend the glass from one edge and remove the transport film.
Step 2. Installation
Put the glass on top of the screen (on the speaker side) and gently lower it to the surface, avoiding bias. Don't push the center, it creates bubbles. Use the anchor method:
- Secure the top edge of the glass.
- Gently lower the rest, as if "rolling" the glass across the screen.
Step 3: Bubble removal
If you have small bubbles (up to 1 mm), do not panic - they will disappear in 12-24 hours. large bubbles remove with a plastic map, swiping from center to edge. Don't press hard - on the Redmi 8 touch layer is thinner than the flagships, and it is easy to damage.
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If the glass slips away during installation, don't try to move it, because removing it and re-installing it will cause dust to enter, and you'd better remove the glass, clean the screen again, and stick a new one.
4.Typical mistakes and how to avoid them
Even with a careful installation, Redmi 8 users face typical problems:
| Problem. | Reason. | Decision |
|---|---|---|
| The glass leaves at the corners in 1-2 days | Poor adhesion due to residues of fat or moisture | Repeat screen cleaning with isopropyl alcohol and use silicone-adhesive glass (e.g. Belkin Invisiglass) |
| Rainbow divorces in bright light | Cheap glass with poor quality AR-coating | Replace with glass with an oleophobic layer (check for the label “Oleophobic Coating” on the package) |
| Poor sensor sensitivity | Glass too thick (0.5 mm+) | Select glass 0.2–0.3 mm thick or calibrate the sensor in Settings → Additional → Screen Calibration |
The Redmi 8 is a high-grade camera module, and if the glass is thicker than 0.35 mm, it can crack when it falls at an angle, because it will hit the ledge, so you can use edge-enhanced glass (like Zagg InvisibleShield).
⚠️ Warning: If the glass is pressed (bends and returns) after installation, it is a sign of poor-quality glue.
Compatibility of protective glass with covers
On the Redmi 8, cases often conflict with glass because of the camera height (1.2 mm) and rounded edges of the screen.
Best pairs of "glass + case":
- 🔹 Glass: Spigen Glas.tR (0.3 mm) + Case: Xiaomi Original Silicone Case - the perfect combination, without gaps.
- 🔹 Glass: AmFilm Ultra (0.25 mm) + Ringke Air – Minimum glass lift on the edges.
- 🔹 Glass: Nillkin H+ Pro (0.15 mm) + Baseus Crystal – for those who like the “naked” design of the phone.
Incompatible combinations:
- ❌ Zagg glass (0.4 mm) + Cover UAG Monarch – glass cracks when falling due to the hard sides of the cover.
- ❌ Belkin glass (0.5 mm) + Spigen Tough Armor Case - Raises the edges of glass, gathers dust.
If you use a bumper case (like Poetic Revolution), choose a glass with a black frame – it will not cling to the edges of the case when installing / removing.
6. How to extend the life of protective glass
The average glass life on Redmi is 8 to 6 to 12 months.
- 🧴 Once every 2 weeks, wipe the glass with a dry microfiber (wet cleaning reduces the life of the oleophobic coating).
- 📵 Avoid placing the phone screen down on abrasive surfaces (sand, concrete, metal).
- 🔋 Do not use wireless charging with thick glass (0.5 mm)+) — It overheats the glue layer.
- 🧴 Apply liquid glass over the protective 1 time in 3 months - this will restore the oleophobic layer.
Signs that it is time to change the glass:
- 🔍 There are deep scratches that cling to the finger.
- 💧 The drops of water do not roll, but spread (the oleophobic layer disappears).
- 🖱️ Sensor responds to delayed touch.
- 🌈 In bright light, rainbow divorces (degradation) are visible. AR-covering).
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Liquid glass (such as Carglass) can be applied over a protective glass, which will prolong its life by 30-50%.
7.Alternatives: liquid glass and hybrid solutions
If you don’t like “overhead” windows, consider alternatives:
- 💧 Liquid glass (for example, Carglass or Nano Liquid) - applied as a polyrene, forms a protective layer with a thickness of 0.1 mm. Pros: invisible, does not affect the sensor. Cons: protects only from scratches (not from impacts), serves 3-6 months.
- 🛡️ Hybrid glass (like Whitestone Dome) combines liquid adhesive and hard coating. Pros: self-installed under pressure, no bubbles. Cons: expensive (from 1500) ₽), hard-to-get.
- 🧲 Magnetic glass (e.g. Mous Limitless 3.0) - attached to magnets, compatible with Mous cases. Pros: easy to remove, cushion shocks. Cons: expensive, not suitable for all cases.
For the Redmi 8, liquid glass is a good option if you change covers often or don't want to lose touch from the screen, but remember, it won't save you from falling, just scratching.
How to apply liquid glass:
- Clean the screen (as for regular glass).
- Apply 2-3 drops on the screen and evenly rub with microfibre.
- Wait 10 minutes and remove the excess with a dry wipe.
- Do not use your phone for 12 hours (full polymerization takes up to a day).
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Before applying liquid glass, stick paint tape on the camera and speaker - this will prevent the composition from entering the holes.