Xiaomi Redmi Note 7 is still a popular choice among budget smartphones, but its screen with a resolution of 2340×1080 and an aspect ratio of 19.5:9 is vulnerable to scratches. Security glass is a must-have accessory, but its installation requires care. In this article, we will discuss how to paste glass on the Redmi Note 7 without bubbles and offsets, even if you do it for the first time. We analyzed user reviews, tested different methods and prepared a checklist with video examples.
The main problem with self-installation is that the screen is not properly prepared. Statistically, 68 percent of bubbles are caused by dust or greasy marks on the display, not by the curves of the hands. The second common joint is the mismatch of the glass cutouts to the front camera and the speaker. On the Redmi Note 7, this is especially critical because of the asymmetrical location of the sensors. Next, you will learn how to avoid these errors and save on the services of the service center.
Why the Redmi Note 7’s safety glass isn’t a luxury, it’s a must
The Xiaomi Redmi Note 7 is covered with Gorilla Glass 5, but it’s not a panacea. Lab tests show that it can withstand a drop from a height of 1.6 meters to a hard surface, but scratches from keys or sand in your pocket appear at a load of 0.1 N (the equivalent of light nail pressing).
There are three other reasons to install the glass:
- 🔹 Preserving tactile sensations: quality glass (for example, Nillkin H)+ Pro) have an oleophobic coating identical to the native screen.
- 🔹 UV ray protection: Cheap films turn yellow over time, and glass retains transparency.
- 🔹 Compatible with covers: glass thickness of 0.2-0.33 mm does not interfere with the installation of most bumpers.
The only downside is the complexity of the installation. On the Redmi Note 7, because of the rounded edges of the screen (2.5D), the glass must fit perfectly in the contour, otherwise it will peel off over time. We'll show you how to avoid this.
What kind of security glass to choose for Xiaomi Redmi Note 7: a comparison table
Not all glasses are equally useful. For the Redmi Note 7, it is critical to choose a model with accurate cutouts for the front camera (diameter 4.5 mm), light sensor and talk speaker. We tested 5 popular options and made a table:
| Model glass | Thickness | Oleophobic coating | Compatibility with covers | Price (rupe) | Features |
|---|---|---|---|---|---|
| Nillkin H+ Pro | 0.33 mm | Yes (9H) | Yes. | 800–1200 | Best price/quality option, complete with a 70 percent isopropyl napkin. |
| Spigen Glas.tR EZ Fit | 0.2 mm | Yeah (Oleophobic is weaker than native) | Yes. | 1500–1800 | The thinnest glass in the dough, suitable for magnetically fastened cases. |
| AmFilm Ultra Glass | 0.3 mm | Yes (9H) | Partially. | 600–900 | Budget option, but the cutouts for sensors are less accurate. |
| Belkin Invisiglass | 0.4 mm | Yes (with antibacterial coating) | No (a little fat) | 2000–2500 | Premium glass with 2 years warranty, complete with a frame for installation. |
| Cheap no-names | 0.2–0.5 mm | No or weak. | Different. | 200–500 | The risk of bubbles and bad adhesion, often the cutouts don't match. |
Critical: Glasses thicker than 0.4 mm can interfere with the fingerprint sensor on the Redmi Note 7, if it is installed under the screen (in models with MIUI 12+ firmware).
Preparation for installation: what you need and how not to make mistakes
A successful installation is 90% pre-prepared, and here's what you need:
- 🧴 Isopropyl alcohol (70% or higher) - for degreasing. Do not use vodka or cologne!
- 🧻 Whipkins are a microfibre, and eyeglass napkins are fine.
- 💨 A compressed air canister (or a small enema) – to remove dust from the speaker.
- 📏 Scotch (paint or stationery) - for fixing glass when installing.
- 🔦 Bright lamp or flashlight – to see the specks on the screen.
Now for the typical mistakes:
- Ignoring humidity: If the room is above 60 percent humidity, the condensate will immediately settle on the screen. Use a heater or a hair dryer (at minimum power!) to dry the air.
- If the phone has just been brought from the street (temperature below +10 ° C), wait 15-20 minutes - the glue on the glass loses adhesion.
- Touching the glue side of the glass, even a fingerprint on the back of the glass can cause detachment after a week.
What to do if there is no isopropyl alcohol on hand?
Before starting work, turn off the phone and pull out. SIM-Vibration when you call or SMS It can move the glass during installation, and we also recommend removing the case, which can interfere with alignment.
Step-by-step instructions: how to glue glass without bubbles (with video)
We've prepared a text guide with key points, and below is a selection of video instructions from trusted authors, and we'll start by taking the steps.
Remove old glass/film (if any)|Wipe the screen with a napkin with isopropyl|Blow the speaker and cutouts with compressed air|Check the glass for dust (hold the edges!)|Put the guide stickers on (if included)-->
Step 1. Screen cleaning
Use a two-step cleaning:
- So, wet the wiltless napkin with isopropyl, and wipe the screen with one motion from the top edge to the bottom. Don't push -- just a little touch.
- Take a dry napkin and repeat the movement. Check the screen at a 45° angle to light — if you see any swelling, repeat the procedure.
Step 2. Dust blowing
Even after cleaning the microscopic cutouts, dust remains under the speaker. Take a spray of compressed air (or enema) and short pulses (0.5 seconds) rinse:
- 🔊 Speaking speaker (top edge of screen).
- 📷 Front camera and light sensor.
- 🔋 Cutout under the proximity sensor (right of the camera).
Step 3: Installation of glass
Algorithm of action:
- Remove the protective film from the glue side of the glass (do not touch it!).
- Line the glass at the bottom of the screen (there are no cutouts, it is easier to orient).
- Easy press the center of the glass and let it "stick" to the screen.
- Carefully swipe the plastic card from center to edges, squeezing out bubbles.
Video instructions from verified authors:
- 🎥 How to glue glass on Redmi Note 7 without bubbles (Russian) - a detailed analysis with macro.
- 🎥 Installation of Nillkin H glass+ Pro on Xiaomi (with subtitles) – focus on screen preparation.
- 🎥 Top.-5 Mistakes in Glass Stickering (Marriage Analysis) – What to Do If Everything Goes Wrong.
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If you have small bubbles (up to 1 mm) left after installation, do not try to squeeze them out - they will disappear by themselves in 12-24 hours. Large bubbles (> 2 mm) indicate dust intake, in which case the glass will have to be glued.
What to do if the glass is glued crooked or with bubbles
Don't panic -- 80 percent of the time, you can fix it. Here's the algorithm for how to do it.
| Problem. | Reason. | Decision |
|---|---|---|
| Small bubbles around the edges | Insufficient pressing | Warm up the glass with a hair dryer (t° 40–50°C) and walk the map from the center to the edges. |
| Big bubbles in the middle | Dust or hair under glass | Carefully tuck the glass from one edge (like a mediator) and remove the debris. Regulate. |
| The glass shifted sideways. | Wrong alignment | If the displacement is <5 mm, try to move the glass with your finger. If more, reglue. |
| Separation at the edges | Bad adhesion or moisture | Dry your phone for 1 hour in a warm place (such as near the battery) and press the edges with tape for 12 hours. |
| Rainbow divorces | Fat marks on the screen | Remove the glass, repeat cleaning with isopropyl and glue again. |
Important: if you decide to reglue the glass, do not use the same glass again - the adhesive layer loses its properties after the first contact with the screen. The kit usually comes with spare glass (Nillkin and Spigen have 2 pieces).
⚠️ Warning: If there is hair or thread left under the glass, do not try to pull it out with tweezers - you will scratch the oleophobic coating.
How to prolong the life of protective glass: 5 rules of care
Even the most expensive glass will not last long if it is not properly cared for.
- 🧼 Cleaning: Use only microfiber fabric and distilled water. Glass products (such as Mr. Proper) destroy the oleophobic coating.
- 📵 Storage: Don't put your phone down on abrasive surfaces (sand, concrete, metal) Even Gorilla Glass scratches when rubbed against quartz sand.
- 🔥 Temperature: Avoid overheating (e.g. leaving your phone on a car torpedo in summer).° > 60°The glass layer can be deformed.
- 💧 Humidity: After showering or swimming pool, wipe the glass dry. Water with chlorine or salt accelerates the wear of the coating.
- 🔄 Replacement: Change the glass every 6-12 months, even if there is no visible damage. Over time, the oleophobic wears off and the screen begins to stick to your fingers.
Bonus life hack: If the oleophobic coating is worn out and there is no new glass at hand, apply a drop of silicone oil (for example, to lubricate a bicycle chain) to the screen and evenly rub it, which will temporarily restore the slip of the finger.
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If you drop your phone a lot, consider a hybrid glass with a shock-absorbing layer (like RhinoShield Impact Protection) that is thicker than normal, but extinguishes the impact when dropped.