Xiaomi Redmi 4X — One of the most popular budget smartphones of 2017, which is still in use today, but even with this "unkillable" device, the weak spot is the screen glass. Falling from a height of human height, hitting a hard surface or even strong pressure in your pocket can lead to cracks, chips or complete glass collapse. In the service center for the replacement will take from 2,500 to 4,000 rubles, but if desired, the procedure can be carried out independently - saving up to 70% of the cost.
This article is not just an instruction, but a complete guide with an analysis of all the nuances: from choosing the right glass (original vs. analog) to the subtleties of dismantling Redmi. 4X, We'll tell you how to avoid the mistakes of beginners (for example, damage to the touchscreen plume or peeling the display), what tools are really needed and what you can do without. 4X Loses touchscreen sensitivity – and how to fix it without redisassembling.
1.Diagnosis of damage: do I need to change the glass or the problem deeper?
Before you rush to order a new glass, make sure it's the one that's the problem. - Xiaomi Redmi 4X (santoni model glass is a separate element, but underneath it hides a display module (OLED-matrix + If the damage is superficial (cracks, scratches, small chips), it is enough to replace the glass, but there are signs that the display itself is damaged:
- 🔴 The drips of the liquid under the glass mean that the display module is depressurized, and in this case, it is pointless to change the glass, because the moisture has already damaged the matrix.
- 🔴 Colored stripes or artifacts on the screen (even without cracks) – a sign of damage to the plume or the matrix itself.
- 🔴 Touchscreen does not respond to touch in certain areas – perhaps disconnected contacts between the glass and the display.
- 🟢 Only cracks without dashing are the perfect case for replacing glass.
If you see at least one of the “red” symptoms, most likely, you will need to replace the entire display module (the question price is from 3,500 rubles).
- Connect your smartphone to your computer and check if the picture is displayed on the screen (for example, through a computer). ADB or a Scrcpy program).
- If there is an image, but the touchscreen does not work, the problem is in the glass or plume of the touchscreen.
- If there is no image, the matrix or plume of the display is damaged.
⚠️ Attention: On Redmi 4X The glass is glued to the touchscreen, but it's not a single unit with the matrix. But if you disassemble it in a neat way, you can damage the plumes that connect these elements. If you've never disassembled a smartphone, practice on an unnecessary device or watch video disassemblies with an emphasis on the santoni.
2. Glass selection: original vs. analogues, where to buy and how much it costs
The quality of glass is not only the look of the glass, but also the sensitivity of the touchscreen, as well as the durability of the repair. 4X:
| Type of glass | Price (2026) | Pluses | Cons | Where to buy |
|---|---|---|---|---|
| Original (OEM) | 1 800–2 500 ₽ | Perfect match in size, full compatibility with touchscreen, original oleophobic-coating. | It is expensive, difficult to find (often sold under the guise of a smear). OEM fake). | Official Xiaomi service centers, trusted suppliers (e.g. AliExpress from sellers with a rating of 98%+). |
| Quality analogue (A+) | 800–1 500 ₽ | Good quality adhesive, close to the original oleophobic coating, often comes with tools. | It can be a little thinner than the original, sometimes worse sensitivity at the edges. | AliExpress, Beru, parts stores (e.g. MobiParts). |
| Budget analogue (A-) | 300–700 ₽ | Low price, quick delivery. | Poor oleophobic coating (fingers stick), possible sensitivity problems, often go without glue. | Unverified sellers on marketplaces, local radio market shops. |
Our advice: if you are doing repairs for yourself and plan to use your smartphone for a long time, take the original or analogue of class A.+. For a temporary solution or sale of the device, a budget option is also suitable, but be prepared for the fact that in 2-3 months the glass will again require replacement.
When buying, pay attention to:
- 📦 Component: the set must be glass, glue (or tape) 3M), cleaning wipes, mediator.
- 🔍 Search for photos of real buyers (often sellers post photos of the original, and send a fake).
- 📏 Exact dimensions: glass for Redmi 4X It should be 5.0 inches with a cutout for the proximity sensor and speaker.
3. Tools required: what you need to replace glass
To replace the glass with Redmi 4X You'll need a minimal set of tools, but without some little things (like a sucker or a mediator), the process can turn into anguish:
- 🔧 Plastic mediator (or guitar mediator) – to separate glass from the body.
- 🧲 Suction cup – to pick up glass after heating.
- 🔥 Hair dryer or thermo-air station - for softening the glue (a building hair dryer with temperature adjustment is suitable).
- 🧴 Isopropyl alcohol (90%+) — glue-cleaner.
- 📱 New glass with glue base (or separately glue) B-7000 / ribbon 3M).
- 🔪 Plastic or metal spatula – to remove old glue.
- 🧻 Whipless wipes - for cleaning the display.
- 🔋 Battery (optional) – if you plan to turn off the plumes, it is better to remove the battery.
Also useful:
- 📐 Loop or magnifying glass – to check the quality of gluing at the edges.
- 🎯 Scotch (paint) - for fixing plumes and protecting the body from scratches.
- 🔌 Screwdriver. T3/T4 — for the retracting of the screws (if you need to remove the back cover).
⚠️ Warning: Do not use metal tools to separate the glass from the body - they can scratch the frame or damage the plumes. Also avoid overheating: if the hair dryer temperature exceeds 80°C, you can melt plastic elements of the body or damage the display.
☑️ Preparation for replacing glass with Redmi 4X
Step-by-step: how to remove old glass without damage
This is the most critical stage. Mistakes here can damage the display or touch screen, so act carefully.
Step 1: Preparing the phone
Turn off Redmi. 4X and extract SIM-If the battery is not removable (and in this model it is soldered), it is better not to risk and turn off the plumes - work with the battery connected, but turn off the phone from charging.
Step 2: Heating the glass
Turn on the hair dryer at 60-70.°C and warm up the edges of the screen evenly for 2-3 minutes. Keep the hair dryer 5-7 cm away so the display doesn't overheat. The goal is to soften the glue, but not melt the plastic.
Important: don't heat the center of the screen, just around the perimeter where the glass is glued to the case. If the glass is severely cracked, put tape on it so that the fragments don't fall apart.
Step 3: Separation of glass
With a suction cup, gently pick up the glass from any angle. If it doesn't lend itself, warm up the area for another 30 seconds. Once there's a gap, insert a plastic mediator into it and slowly drive along the edge, separating the glass from the body.
Take your time! If the glue hasn't softened yet, it's better to warm it up again than break the glass or damage the plumes. 4X The touchscreen plume is especially vulnerable - it runs along the left edge (if you look at the screen).
Step 4: Removal of glue residues
Once the glass is removed, there will be traces of glue on the frame and display. Remove them with isopropyl alcohol and a lilac wipe. Don't use acetone or solvents, they can damage the oleophobic coating of the display.
If the glue is not moving well, gently tuck it in with a plastic spatula. Don't push too hard - display on Redmi 4X thin and can crack.
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If the glass is broken into rubble and not clinging to the suction cup, try putting a wide tape tape on it, and then pulling it over the edge, which will help remove the fragments in a single block.
5. Installation of new glass: how to avoid bubbles and detachments
Now you need to glue the new glass, and it's all about being neat and not dusty, and even one mote under the glass can lead to bubbles or uneven fits.
Step 1: Preparation of the surface
Wipe the display with a lilac-free wipe soaked in isopropyl alcohol. Make sure there are no greasy spots, dust or fibers on the surface. Also clean the frame of the case - the glue should stick evenly.
Step 2: Applying glue
If your glass comes with a pre-applied glue (usually tape) 3M), Just take off the protective film. If there's no glue, apply the glue evenly. B-7000 And you can go around the perimeter of the display, step 1 to 2 mm away from the edge.
Step 3: Installation of glass
Carefully place the glass on the display, combining all the cutouts (for speaker, sensors, cameras). Start at one edge and gradually lower the glass, avoiding bubbles. If they do appear, carefully drive them from center to edge with a mediator.
After installation, don't turn on the phone for 1-2 hours - let the glue grab. You can put a light load on the glass (for example, a small book) to make it stick better.
Step 4: Checking the performance
Turn on Redmi. 4X and check:
- 📱 Touchscreen: Does it respond to touches all over the screen (use the test in Settings) → The phone. → All specifications → Test).
- 🔊 Dynamic: Is the sound muffled (sometimes the glue flows into the hole).
- 📸 Approximation sensor: Does it work normally during a call (the screen should go out when the phone is brought to the ear).
⚠️ Attention: If after glass replacement, the touchscreen does not respond well to touch, it is likely that the problem is poor glue or poor contact of the plume, LOCA). If this does not help - perhaps during the disassembly the plume of the touch screen was damaged, and it will need to be replaced.
What if the screen becomes dull after changing the glass?
6. Common mistakes and how to avoid them
Even experienced craftsmen sometimes make mistakes when replacing glass with Redmi. 4X. Here are the most common problems and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Overheating glass with a hair dryer | Melting plastic frame, damage to the display, detachment of plumes. | Keep the dryer at a distance of 5-7 cm, do not heat for longer than 3 minutes, use a temperature not higher than 70°C. |
| Use of metal tools | Scratches on the body, damage to plumes, short circuit. | Work only with plastic or wooden mediators. |
| Incomplete removal of old glue | Bubbles under new glass, bad fixation, detachment after a few days. | Carefully clean the surface with alcohol and spatula. |
| Dust-glazing | Crunch under glass, bubbles, deterioration of touch screen sensitivity. | Work in a clean room, wipe the display with a lilaless napkin. |
| Too much pressure in the installation | Cracks on a new glass or display, damage to the matrix. | Lower the glass smoothly, without pressing. If necessary, use a load no heavier than 500 g. |
Another common problem is that the touchscreen is broken after replacement, and the reasons may be:
- 🔌 The plume is damaged - check if the contacts broke off during the disassembly.
- 🧴 Bad glue - some cheap analogues conduct current and interfere with the work of the touch screen.
- 📱 Incompatible glass – if it is thicker or thinner than the original, the sensor may not work.
If the touchscreen doesn't work, try:
- Reconnect the plume (if you disassembled the phone completely).
- Re-glue the glass with another glue (e.g, LOCA UV).
- Testing the glass on another Redmi 4X (If there is such a possibility).
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If the touchscreen is unstable after glass replacement, 90% of the time it's glue. Use only specialized adhesives for displays (B-7000, LOCA) Avoid cheap analogues with unknown composition.
7.Repair cost: comparison of self-replacement and service center
Price of glass replacement on Xiaomi Redmi 4X It varies by region and type of glass. Let's compare the cost of self-repairing and service:
| Parameter | Independently. | Service centre |
|---|---|---|
| Glass (original) | 1 800–2 500 ₽ | Included in the cost of the work |
| Glass (analogue A)+) | 800–1 500 ₽ | 1 000–1 800 ₽ |
| Tools | 300–800 ₽ (buy from scratch) | Included in the price |
| Work of the master | 0 ₽ | 1 500–2 500 ₽ |
| Total (original) | 2 100–3 300 ₽ | 3 500–5 000 ₽ |
| Total (analogue) | 1 100–2 300 ₽ | 2 500–3 800 ₽ |
As you can see from the table, self-replacement is 30 to 50 percent more profitable, especially if you use a quality replacement.
- 🔧 Display damage – if you’ve never taken your phones apart, the chance of error is high.
- ⏳ Time loss – the first time will take 1.5-2 hours (in the service will do in 30-40 minutes).
- 🔄 Additional costs – if something goes wrong, you may need to replace the display module (from 3,500) ₽).
Our verdict: if you have a strong hand and experience with technology, self-replacement of glass with Redmi 4X — If you don't have experience, you should go to the service, especially if the phone is important for work or school.
8.Alternative solutions: when to change the glass is not necessary
Replacing glass is not always the only way out, and in some cases, less radical measures can be done.
- 🛡️ Protective film or glass: if cracks are small and do not interfere with use, stick a protective glass on top (cost - 200-500) ₽). This will not eliminate the defect, but will prevent further cracking and protect the fingers from shrapnel.
- 🎨 Polymer coating: Some services offer to fill cracks with a special composition that makes them less noticeable. ₽, But it's a temporary solution.
- 🔄 Selling the phone as is: if Redmi 4X It's obsolete, you can sell it with a broken screen (for parts or for repairs) and buy it for a new model. ₽.
Also, keep in mind that Redmi is 4X (Like many budget smartphones, the display and touchscreen are a single module, so if the cracks are okay and the touchscreen is working properly, you can use the phone, and so on.
If you still decide to change the glass, but are afraid to damage the phone, consider a partial disassembly:
- Remove only the glass, do not touch the display module.
- Use it. UV-glue that hardens under ultraviolet light - this simplifies the process.
- Ask for help from someone who has already done this type of repair.
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If there are cracks on Redmi glass 4X You can use a protective film or glass to make sure that you don't interfere with the touchscreen or damage the image, and you can use a protective film or glass temporarily, and only replace it if you have deep chips, if you have a risk of cuts, if you have a broken touchscreen.