Owners of the popular budget smartphone Xiaomi Redmi 7 often face the need for additional protection of the screen. Despite the fact that the manufacturer uses durable glass, the risk of scratches and chips when falling remains high.
The self-installation process can seem daunting, especially for beginners, but with the right tools and knowledge, it only takes a few minutes. The precision of the movements and the cleanliness of the workplace are crucial to the final result. In this article, we will go through all the steps in detail so that you can get the perfect result the first time.
Sticker errors often lead to air bubbles or microscopic villi getting under the protection layer. Redmi 7 has specific edge rounding and a cutout under the front camera, which requires special attention when centering. We will tell you how to avoid common problems and make your screen almost unbreakable.
Choosing the right protective coating for Redmi 7
The first and most important stage is to buy a quality accessory.The market is crowded with offers, but not all of them are suitable for the Xiaomi Redmi 7. Cheap counterparts often have insufficient hardness or incompatible edge geometry, which leads to peeling.Toughened glass must have a 9H hardness on the Mohs scale for effective protection from keys and coins in your pocket.
Pay attention to the oleophobic coating that is applied to the surface of the glass. It prevents greasy fingerprints from appearing and provides a pleasant slide. Without this layer, the screen will quickly get dirty and swipes will become less responsive. For Redmi 7, the accuracy of the cutouts is also important, especially in the area of the speaker and camera.
⚠️ Warning: Don't buy universal glass "for all 5-inch smartphones." Redmi 7 geometry has its own peculiarities, and versatile solutions may not close the entire screen or overlap sensors.
There are two main types of protection: hydrogel films and classic glass. Films are better fit curved edges (2.5D), but worse save from heavy impacts. Glass takes the brunt of the fall, often breaking themselves, but maintaining the integrity of the display. The choice depends on the operating conditions of your device.
Tools and workplace preparation required
The success of the operation depends on preparation, 90%. You don't need complex professional equipment, but a set of basic tools is mandatory. It usually comes with quality glass, but it's better to check the presence of all components in advance. Surface cleanliness is a law that can not be violated.
Organize your workspace. Find a table with good light, preferably in daylight or under a bright lamp. Rub the table with a damp cloth to remove dust that can fly into the air as you work. Turn off the fan or air conditioner if they create a draft that lifts microparticles.
- 🧼 Alcohol napkin or degreasing liquid (isopropyl alcohol).
- 💨 Sticky sticker (dust remover) for finish cleaning.
- 🧻 Microfiber for polishing the screen without pile.
- 🔦 Powerful flashlight or table lamp for lighting dust.
Prepare your smartphone. Remove the case if you have one, as it will interfere with access to the edges of the screen. Wipe the device body so that dirt does not get to the just cleaned display. Make sure that the battery is sufficiently charged if you plan to use the phone's flashlight as a backlight, although it is better to use an external light source.
Technology of cleaning the display before the sticker
This is the most critical stage, and the absence of bubbles depends on it. Any remaining speck of dust or fat will become the center of flaking. Start by carefully examining the screen at an angle in bright light. If you see old glue or film residues, they must be removed carefully without using metal objects.
Use an alcohol wipe for the primary treatment. The movements should be circular, without much pressure, so as not to damage the oleophobic layer of the Redmi 7 display itself. The alcohol will dissolve the fat deposits and disinfect the surface. Let the moisture evaporate for a few seconds, but do not touch the screen with your fingers after that.
Procedure:
1. Alcohol degreasing.
2. Drying with microfiber.
3. Dust collection with a sticky sticker.After the alcohol, take a dry microfiber cloth and polish the screen until it shines. Then use a sticky sticker. Stick it and peel it off all over the surface of the display, collecting the smallest villi. A check under the lamp will show if the surface is ready. If you see a dot, repeat the procedure with a sticker.
💡
Use tape wound onto your finger with a sticky side outwards, like an improvised dust collector if the factory sticker isn't included. This often works even better.
Step-by-step instructions for installing glass
When the screen is perfectly clean, we move to the main action: Take your time to remove the protective film from the glass itself immediately. First, try on the glass on the smartphone that is off, combining the edges and notches. Make sure that it does not overlap the speaker and the camera. Remember the position relative to the body.
Carefully remove the bottom protective film (usually marked with the number 1 or the inscription Back). Try not to touch the adhesive surface with your fingers. Take the glass by the side edges. Bring it to the screen and align it around the edges of the Redmi 7. Start on the speaker side or the charging connector, depending on the design.
☑️ Checklist before final gluing
Once you've seen the perfect match, you can gently lower the glass onto the screen, and it should stick itself, starting at the center, thanks to the air cushion. If the glass is good, it will spread itself over the surface. Don't push too hard in the center, it's better to press the edges, squeezing air to the periphery.
If you've used the wet sticker method (rarely for glass, more often for film), the process is different, but for dry installation, it's important to just put it flat and iron it out. Once stuck, take the fabric and force it from the center to the edges to ensure maximum adhesion of the glue.
Removal of bubbles and defects
Even professionals sometimes have air pockets. If you see a bubble, don't panic. Take a plastic card wrapped in a soft cloth and force the air to the nearest edge. Movements must be confident and fast. Often the bubbles disappear on their own within 24 hours.
It's more complicated if you've got dust under the glass, and then you can't just press it down, you'll have a white dot, you'll have to gently lift the edge of the glass over the problem area, and use a thin needle or scissors to peel the glass off slightly without touching the sticky layer with your fingers.
| Type of defect | Cause of the occurrence | Elimination method | Probability of success |
|---|---|---|---|
| Air bubble | Uneven fitting | Extrusion to the edge | 99% |
| Dust. | Poor cleaning. | Raising the edge and cleaning | 80% |
| Fat spots. | Touching with your fingers | Glass replacement (not retracted) | 0% |
| Rainbow divorces | Poor quality glue | Warming up (caution) | 50% |
To remove the villi, use the sticky side of the tape or dust remover, chewing up the edge of the glass. Act in a room without drafts. After removing the debris, iron the surface again. If the defect remains, you may need to repeat the cleaning procedure.
What to do if the glass cracks when the sticker is applied?
Drying and final quality check
Once installed, the device needs time to finalize the adhesive polymerization (if it is used in the layer) and release the residual air. Leave the smartphone on a flat surface for 1-2 hours.
Check the touchscreen across the area, especially in the corners. Xiaomi Redmi 7 has a capacitive screen that is sensitive to glass quality. If the glass is too thick or cheap, sensitivity may drop. In MIUI settings, you can sometimes find calibration, but usually high-quality glass does not require intervention.
⚠️ Warning: If you notice "dead zones" or spontaneous pressing, it is possible that the glass is defective or too much pressure on the frame, in which case it is better to remove it before it damages the display.
Look at the edges in sidelight. They shouldn't turn white or go away after a few hours. Good 3D glass has a black frame that hides the boundaries, which creates a "single glass" effect. If all the stages are completed successfully, your Xiaomi Redmi 7 has been given strong protection.
💡
The quality of the sticker does not depend on the speed, but on the thoroughness of surface preparation. 90% of the success is the removal of dust before contacting the glass with the screen.