Smartphone Xiaomi Redmi Note 7 deservedly received the status of a people’s favorite due to the excellent ratio of price and quality, but its glass back and front require careful treatment. The screen of the device is made by IPS technology with a diagonal of 6.3 inches, which makes it susceptible to scratches from keys, small things in the pocket and accidental falls. Many users face the dilemma: trust the master in the service center or try to stick the protection yourself at home.
Self-installing protective glass is not only a way to save money, but also the ability to control the quality of the build, especially if you use adhesive or UV-In this article, we will discuss in detail the process of surface preparation, the choice of consumables and the very procedure of gluing, so that the result will please you with the absence of bubbles and dust particles.
A well-performed procedure will extend the life of the display and preserve an oleophobic coating that quickly wears off when used actively without protection. It is important to understand that even a minor error in the preparation stage can lead to microscopic defects that will horn your eyes every time you turn on the screen. So be patient, have good lighting and follow our recommendation.
Tools and workplace preparation required
Before you start working directly with the Redmi Note 7, you need to organize a sterile workspace. Dust is the main enemy when sticking glass, because even one microscopic villi will create a noticeable air pocket. The ideal option is the bathroom after the steam from the shower has passed: moist air nails dust to the floor, preventing it from floating in the air.
You'll need to prepare a special toolkit, which often comes with quality protective accessories. If you don't have a ready kit, it's easy to assemble yourself using the materials available. The main requirement is clean hands and tools, so wash your hands thoroughly with soap and wipe them with an alcohol wipe before you start.
To successfully complete the task, you will need:
- 🧼 Alcohol wipes or surface degreasing liquid.
- 🌬 Dry microfiber without pile for final polishing.
- 💨 A compressed air canister or a special sticker-vacuum collector.
- 💳 Plastic card or rackel for smoothing (often comes with a complete set).
- 🔦 Desktop lamp to provide bright but not blinding lighting.
Make sure that there are no extra items on the table that can interfere with work or become a source of dust. The work area should be flat and stable so that the smartphone does not slip at a critical moment. It is also recommended to remove rings and bracelets from your hands that can scratch the case or screen during manipulation.
Choosing the type of protective coating for Redmi Note 7
The Xiaomi accessories market offers a variety of protection options, and the choice depends on your priorities: maximum strength, cheapness or ease of installation. Standard hydrogel films are good at protecting against scratches, but weak at saving from impact, while tempered glass takes on the main energy of impact when falling.
Particular attention should be paid to the so-called UV-These solutions provide perfect fit and no rainbow effect at the edges, but require more complex preparation and care to avoid the glue getting into the speaker or charging connector.
When choosing, pay attention to the following characteristics:
- 🛡 Mohs hardness (optimum) 9H sharp-proof).
- 🖐 Availability of high-quality oleophobic coating (checked by water test).
- 📐 Accurate match of cutouts for the conversational speaker and front camera.
- 🌈 No Color Distortions and Sensory Interference.
⚠️ Attention: Cheap, bad-glue glass can flake off at the edges over time, creating a white-frame effect, not only making the look worse, but also reducing the protection of the screen faces.
The Redmi Note 7 also has black-framed glass that completely covers the front panel, hiding possible build defects in the smartphone itself. However, such models are harder to glue, since the risk of bias relative to the frame is higher, and any skew will immediately be noticeable.
Stages of preparing the display for the sticker
The most important step in the whole process is to thoroughly clean the display. Any remaining greasy film or speck of dust that is invisible to the eye will ruin the result. Start by removing the old protective coating, if any, and gently wipe the screen with a wet alcohol wipe, removing fingerprints and dirt.
After wet cleaning, dry the surface with a dry microfiber with circular motions. Don't push too hard to damage the matrix, but make sure there are no stains left on the surface. Examine the screen at an angle in bright light: if villi are visible, remove them with a sticky tape or a special sticker.
The final touch is to use a compressed air can. With short presses, blow through the perimeter of the screen, the dynamic grille and the front camera area. The speaker is often the source of micro-dust, which, when pressed on the glass, can fly out and create a new bubble.
☑️ Checking before sticker
Do not touch the inside of the new protective glass after removing it from the package. If you accidentally touch the adhesive layer, use tape to carefully remove the print, or wipe the place with a wet wipe if the glass design allows you to do so without damage.
Technology of application of protective glass
There are two main installation methods: dry (for silicone-based glass) and wet (for silicone-based glass). UV-In the case of Xiaomi Redmi Note 7, the most common dry method, which we will discuss, is to take the glass by the ends and try it on to your smartphone without removing the protective film to make sure that the holes match.
Carefully remove the bottom protective film from the adhesive layer, trying not to touch the sticky surface with your fingers. Combine the glass with the screen, focusing on the upper end and the front camera. Once you make sure that all the holes match, smoothly lower the glass on the display, starting from the center or from the top edge.
Once the glass has fallen into place, it will stick to the screen itself, displacing air. If it's slow, you can easily press the center with your finger. To fit perfectly, use a plastic card wrapped in a soft cloth and swipe it from the center to the edges, expelling the residue of air.
| Type of defect | Cause of the occurrence | Elimination |
|---|---|---|
| Big bubble. | There's a big dust particle. | Carefully lift the edge and remove dust with scotch |
| Small dots | Microscopic dust | Leave for 1-2 days, often pass by themselves |
| Rainbow spots | Bad glue fit | Press harder in the problem area or replace the glass |
| White edges | Poor-quality glue or curvature | Warming up with a hair dryer (caution) or accepting |
If there is a large speck of dust left under the glass, don't try to squeeze it to the edge - this can scratch the screen. Instead, gently lift the nearest edge of the glass with tape, tuck the speck with another sticky tape and glue the glass again.
Features of working with UV-adhesive glass
Use of the UV-The Redmi Note 7 glass is the best visual, but it requires a lot of attention. The main danger here is the liquid glue, which, if handled carelessly, can leak into the case through the speaker, proximity sensor or charging connector holes.
Before applying the glue, be sure to seal all the holes with thin strips of paint tape. The glue is applied in drops on the screen (usually 3-4 drops in a row), after which the glass is carefully stacked on top. Under the action of the capillary effect, the glue itself will spread over the entire surface.
What to do if the glue hits the speaker?
After the stain is removed, then turn it on. UV-The polymerization time depends on the power of the lamp and is usually 60 to 180 seconds. Warm the glass on all sides, including the faces, so that the glue freezes evenly.
⚠️ Warning: Do not turn on your smartphone until the glue is fully polymerized. Vibration from the inclusion can shift another liquid layer, which will cause waves to appear in the image.
Once dry, remove the protective films and residues of scotch from the holes. Check the sensor and touchscreen throughout the area, as too thick adhesive layer or its uneven distribution can cause sensitivity problems.
Removing common problems and defects
Even power users sometimes have problems after sticking, and one of the common complaints is that there are "dead zones" around the edges of the screen when the smartphone doesn't respond to touching in the corners, often because the protective glass has a thickened edge or a poor-quality glue that doesn't conduct the signal.
In some cases, touchscreen calibration via the MIUI engineering menu helps. Enter ##6484## in the dial menu, select Touchpanel and follow the instructions on the screen, which can help the system re-definition the boundaries of the workspace.
If the glass is unstuck at the edges:
- 🌡️ Carefully warm the edges with a hairdryer at a minimum temperature (do not overheat the screen!).
- 👇 Strongly press the problem areas and fix the rubber band on 10-15 minute.
- 💧 In extreme cases, drop a microscopic drop of glass glue under the departed edge.
💡
Use a cover compatible with the protective glass. Some bumpers have high sides that can constantly touch the edges of the glass and provoke it to peel off.
Remember, tempered glass is a consumable, and its main task is to take the hit and break, keeping the integrity of the expensive Redmi Note 7 display. If the glass cracks, but the screen underneath is intact, just replace the protection without worrying about the money spent.
Frequently Asked Questions (FAQ)
Does the security glass affect the fingerprint scanner in the Redmi Note 7?
How often should I change the protective glass?
Can I put a new glass over the old one?
Why did the brightness disappear after the sticker or a rainbow appeared?
💡
Properly pasted protective glass on the Redmi Note 7 becomes invisible visually and tactile, fully preserving the original sensations of using a smartphone.