Why you need a protective glass on Xiaomi Redmi 7A And how to pick it up.
Xiaomi Redmi 7A — Budget but popular smartphone with screen 5.45" permit HD+ (720×1440). Despite its modest performance, its display is vulnerable to scratches, chips and cracks when falling, and the protective glass not only prevents mechanical damage, but also preserves the touch-screen experience, unlike film.
Glasses of different thicknesses (from 0.15 mm to 0.33 mm), oleophobic coating (repels greasy traces) and even blue light protection are on the market. 7A. The main selection criteria:
- 🔍 Accurate matching of cutouts – glass should fit perfectly on the front camera, speaker and sensors.
- 📏 Full screen coverage – avoid black-frame models that reduce usable area.
- 💎 Firmness 9H — Minimum standard for protection against scratches with keys or coins.
- 🎯 Set - the set should be wipes, dust collector and a sticker for positioning.
Manufacturers often point to compatibility with Redmi. 6A/7A/8A, But Redmi 7A unique radius of screen rounding — 2.5D, So the glass from other models can flake off at the edges!
Preparation of the smartphone: how to clean the screen Xiaomi Redmi 7A before-sticker
Mistake. 80% And even microscopic particles of dust or fat will lead to bubbles or windows detaching in a week. 10-15 minutes, but saves hours on the retracting.
You'll need:
- 🧴 Alcoholic solution (70% isopropyl alcohol) – removes fat better than water.
- 🧻 Microfibre wipe without pile - ordinary tissue leaves particles.
- 🧲 Scotch or sticky tape - to collect dust from the edges of the screen.
- 💡 Bright light source – lighting will help you see pollution.
Step-by-step cleaning:
- Turn off your smartphone and remove the case – it may interfere.
- Wipe the screen with a dry microfiber in circular motions from the center to the edges.
- Put a few drops of alcohol on the napkin and do the wipe again. Don't pour alcohol directly on the screen!
- Stick a piece of tape to the edges of the display and sharply tear off - this will remove dust from the grooves.
- Check the screen under light: If you see slices or particles, repeat the steps 2-4.
⚠️ Note: Do not use household detergents (for example, for glass or mirrors) – they contain ammonia, which destroys the oleophobic screen covering Xiaomi.
Cleaned of visible contamination|Liquor-wiped|Dust from the edges removed with scotch|Checked under bright lights|Smartphone's off.-->
Step-by-step: how to stick a protective glass on Redmi 7A bubbleless
Now, the most important thing to do is to take one wrong move and you'll have to glue the glass over.
Step 1. Positioning the glass
Take the glass out of the package, remove the transport film (usually blue) from it. The package should have a positioning sticker — glue it to the Xiaomi screen so that the cutouts match the camera and speaker. Then carefully place the glass on top and check if the edges match.
Step 2. Fixing.
Lift the glass over one edge, remove the positioning sticker, and slowly lower the glass onto the screen starting at the top. Don't push the center, it will create bubbles. If the glass is moving, pick it up and re-add it (you have it). 1-2 try until the glue is dried).
Step 3: Bubble removal
Use a plastic scraper or credit card to drive air from the center to the edges. Movements should be smooth and uniform. Small bubbles (up to) 1 (mm) usually disappear by themselves 12-24 hour.
| Problem. | Reason. | Decision |
|---|---|---|
| Big bubbles. | Dust or improper fixation | Re-glue the glass after re-cleaning |
| Separation at the edges | Poor quality of glue or moisture | Dry with a hair dryer (cold air) and press |
| Rainbow divorces | Fat marks under the glass | Remove the glass and wipe the screen with alcohol |
| The sensor is not working. | Glass too thick or of poor quality | Replace with a 0.2 mm model thickness |
⚠️ Warning: If the sensor reacts with a delay after the sticker, check if moisture has fallen under the glass.In this case, it must be removed and dried for at least 6 hours in a dry place (for example, with silica gel).
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If the glass doesn't fall on the first time, put it back on the positioning sticker and try it again. 2-3 attempt.
What to do if the glass is glued curved or bubbles appear
Even with a neat label, defects can occur, and let's look at typical scenarios and how to fix them.
1.The glass shifted when fixing
If the displacement is slight (1-2 And you can try to gently tuck the glass in with a plastic card and move it, but it's risky -- the glue can lose its properties.
Small bubbles under the glass
Bubbles up to diameter 1 mm usually dissolve themselves through 12-24 To speed up the process:
- 🔥 Heat the screen with a hair dryer (cold or warm air, not hot!).
- 🖐️ Massage the bubble with your finger, pressing from center to edge.
- 📦 Put your smartphone under a heavy book for 30 minutes (no bigotry!).
3. Large bubbles or detachment
If the bubble is larger than 2 mm or the glass is moving away at the edges, you'll have to reglue it completely.
- 🧹 Dust or villi under glass (repeated cleaning is required).
- 💧 Humidity (try your smartphone in rice or with silica gel 6)+ hours).
- 🧴 Low-quality glue (buy glass with a guarantee from proven brands).
How to remove the glass without damage?
Top.-5 Errors when sticking protective glass on Xiaomi 7A
Analysis of user and workshop feedback shows that 90 percent of the problems are caused by common errors.
- Ignoring instructions – many glue “by eye”, without checking the compatibility of the glass with the Redmi model 7A.
- Savings on cleaning – using wet wipes or paper towels instead of microfiber and alcohol.
- Pressing on the center of the glass creates large bubbles that will not disappear with time.
- Sticker in a dusty room - ideal conditions: closed window, humidity 40-60%, draft-free.
- Using glass after falling – even if there are no cracks, the adhesive layer could deform.
Another common mistake is to try to stick glass on the smartphone, the screen lighting prevents you from seeing dust and bubbles, and the heat from the display accelerates the drying of the glue, preventing you from correcting the flaws.
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The best time to stick glass is through 10-15 minutes after switching off the smartphone, when the screen cools to room temperature.
How to check the quality of the sticker: 3 tests
To make sure the glass is properly pasted, do these checks:
1. Visual examination
Look at the screen from different angles in good lighting:
- 🔍 Are there any rainbow divorces (evidence of greasy marks under glass).
- 📏 The edges of the glass should fit tightly to the display without gaps.
- 💡 Light up with a flashlight - small bubbles (0.5 mm) are permissible, large ones are not.
2.Tactile test
Swipe your finger across the glass:
- ✋ The surface should be smooth, without bumps.
- 🖐️ The sensor should respond to touch without delay.
- 📱 Try to swipe the screen with your nail – quality glass does not scratch.
Functional test
Make sure that:
- 📞 Calls and SMS It is accepted (sometimes glass interferes with the antenna).
- 🔊 The speaker and microphone are working (check the cutouts).
- 🎮 Plays and gestures are recognized correctly.
⚠️ Note: If after the sticker the glass began to "go away" at the edges through 1-2 This is a sign of bad glue or high humidity when you install it, and then you have to replace the glass, because temporary measures like tape sticking won't help.
Alternative ways to protect the screen Xiaomi Redmi 7A
If the glass sticker seems complicated, consider alternatives:
Liquid glass (nano coating)
Pros:
- ✅ Invisible on screen.
- ✅ Protects against scratches (hardness) 9H).
- ✅ Does not affect the sensitivity of the sensor.
Cons:
- ❌ They do not save the soul from the snare).
- ❌ It is difficult to apply on your own (experience is required).
- ❌ Hold on. 6-12 months, and then requires re-applying.
Hybrid film (glass) + film)
Thin glass (0.1 mm) with flexible edges, which is glued like a film. 7A, It's not a problem because it doesn't interfere with the covers, but it's a little bit more protective than a full-blown glass.
3. Eyebrow case
Covers with a protruding edge above the screen (1-2 - prevents direct contact of the display with the surface when falling, Minus - does not protect against scratches in the pocket (for example, from keys).
4. Self-adhesive film
Budget option, but:
- ✅ Easy to stick.
- ✅ Cheap.
- ❌ Scratching for 1-2 month.
- ❌ Deteriorates tactile sensations.
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If you drop your smartphone frequently, combine the glass with a durable case (like the Spigen Tough Armor) to increase your chances of surviving a fall from a height of 1.5 meters.