Xiaomi Redmi Note 7 is one of the most popular smartphones in the budget segment, but its camera glass is vulnerable to mechanical damage. Falling on asphalt, impact or even careless handling can lead to cracks or chips that spoil the appearance and sometimes interfere with the work of autofocus. The service center will take from 1500 to 3000 rubles, but with the tools and patience, you can perform the procedure yourself.
In this article, we'll give you a detailed guide with some nuances you don't find in standard YouTube videos, which tools you really need (and can be replaced with improvised tools), how to avoid damaging the camera plume, and why you can't use a hair dryer to heat the glass without protecting the matrix, and where it's easier to buy a new camera module whole, and when it's just glass.
When to replace the camera glass on Redmi Note 7
Not every crack needs immediate repair, but here are the signs that the glass needs to be changed.
- 🔍 Cracks block the lens - the light is scattered, the photos are cloudy or with glare even in good lighting.
- 📸 Autofocus works unstable - the camera for a long time "catch" sharpness or gives an error.
- 💥 Sharp edges chips - you can hurt or damage the plume during disassembly.
- 🚫 The glass broke off completely, revealing the internal parts of the module (the risk of dust hitting the matrix).
If the damage is only cosmetic (such as small scratches on the edges), the replacement can be postponed, but remember: over time, cracks can spread further, especially at temperature changes.
⚠️ Attention: If after the impact the camera stopped turning on completely (black screen or camera error does not respond), the problem may be in the disconnected plume or damaged matrix.
Tools and materials: what you need
The Redmi Note 7 doesn't need professional devices to replace the camera glass, but it doesn't need a minimum set.
| Tool/material | Appointment | Where to buy or replace |
|---|---|---|
| Plastic mediator or shoulder blade | Tear up the glass and plumes | Phone repair kit (AliExpress, 200-500) ₽) guitarist |
| Thermoclei or double-sided 3M Scotch | Fixing the new glass | Electronics or office stores |
| Isopropyl alcohol (90%+) | Cleaning the surface of old glue | Pharmacy or chemical reagent store |
| Hair dryer (construction or household) | Heating the glass for removal | You can use hot water (less efficiently) |
| Napkins without pile | Dust and print removal | Optics or photo shops |
A magnifier or magnifying glass will also come in handy - the parts on the camera module are tiny, and without magnifying it is easy to miss the remnants of glue or microcracks on the new glass.If you buy the glass separately (rather than the entire module), take only the original labeled for the Redmi Note 7 - Chinese counterparts often have a different diameter or thickness.
Preparation of the phone: steps before disassembly
Before you start replacing, follow these steps to avoid problems:
Turn off the phone and remove it. SIM-memory-card|Charge the battery by at least 50% (in case you need to turn on the phone for the test)|Backup your data (in case of unforeseen errors)|Prepare a clean, well-lit workplace|
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Pay special attention to the battery. In the Redmi Note 7, it's glued to the body, and if you don't properly extract it, you can damage the contacts or the battery itself. If you've never disassembled a smartphone, practice on it: put a plastic blade in a place where there are no plumes (for example, next to the speaker).
Also be sure to check the new glass for defects before installation. Bring it to the light - if you see bubbles, scratches or uneven edges, return to the seller.
Step-by-step: how to remove old glass
This is the most important stage. The main rule is not to rush and do not put too much effort.
- Heat the glass with a hair dryer at a minimum temperature (100-150 ° C) for 2-3 minutes. Keep the hair dryer at a distance of 5-7 cm, evenly leading in a circle. The goal is to soften the glue, but not overheat the matrix.
- Put the glass in a mediator from any angle. On the Redmi Note 7, it's held on a perimeter glue, so lift one edge first, then gradually disconnect the other sides.
- Remove the glue from the camera module and the phone case. Moisten the napkin with isopropyl alcohol and clean the surfaces carefully. Don't use acetone or solvents - they can damage the plastic!
If the glass fails, repeat the heat 1-2 times. Don't try to tear it off by force, so you risk tearing off the camera plume or damaging the matrix. On the Redmi Note 7, the plume is attached with fragile contacts, and it will cost more than the glass itself to replace it.
⚠️ Warning: If you see dust or moisture accumulating under the glass, do not turn the phone on until it is completely cleaned. The particles on the matrix may lead to artifacts in the photo (black dots, blurring).
What to do if the glass breaks into small pieces?
Installation of new glass: nuances and errors
Now, we're going to get to the installation, and it's important to apply the glue right and align the glass.
- Apply heat-glue or double-sided tape in a thin layer along the edge of the camera module. Don't overdo it, excess glue can go over the edges and stain the body.
- Put a new glass on it, and press it slightly. Make sure it sits flat, without skewing. On the Redmi Note 7, the glass should be flush with the body -- if it protrudes, it means too much glue.
- Secure the glass with tape for 10-15 minutes to hold the glue. Don't turn the phone on at this time - vibration from work can move the glass.
A common mistake is to use superglue (moment type) that fixes the glass quickly, but the next time it's repaired, it's almost impossible to remove it without damaging the module. Thermoclei or 3M Scotch hold it just as well, but allow the glass to be dismantled if necessary.
After installation, check the camera operation:
- 📷 Take test shots at different distances (macro, portrait, landscape).
- 🔦 Check autofocus – it should work quickly, without delay.
- 🌈 Make sure there are no color distortions (such as purple glare around the edges).
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If after replacing the glass, the photos become less clear, try to wipe the glass from the inside with a napkin without pile - sometimes there are traces of glue or dust on it.
Frequent problems after replacement and their solutions
Even with a careful replacement, problems can occur, and here are the most common ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| The camera's not turning on. | The plume is disconnected or the matrix is damaged. | Take the phone apart and check the plume connection. If it doesn't work, the diagnostics are on the service. |
| Photos cloudy or glare-filled | Poorly cleaned surface of the module or glass is not tightly glued | Remove the glass, wipe the matrix with alcohol and glue the glass |
| Autofocus is slow to work | Dust on the focus sensor or glass presses on the module | Blow the module with compressed air (canister) or reinstall the glass |
If the glass was replaced with artifacts (colored spots, stripes), the matrix is likely damaged, in which case the entire camera module will need to be replaced - it can be bought on AliExpress for 1500-2500. ₽ (original or 800-1200 ₽ (analogue).
⚠️ Warning: Redmi Note 7 may be unable to calibrate the gyroscope (used to stabilize video) if the video starts twitching, restart the phone or calibrate the gyro through the engineering menu (code ##6484##).
Cost of repair: what is cheaper - on your own or in the service
The price of replacing the camera glass on the Redmi Note 7 depends on whether you buy only glass or the entire module. Here are the approximate prices for 2026:
- 💎 Glass separately - 300-800 ₽ (original or 150-400 ₽ (analogue).
- 📸 The camera module as a whole - 1500-3000 ₽ (depending on the seller).
- 🔧 Work in the service - 1000-2000 ₽ (glass replacement only) or 500-1500 ₽ (sub-module).
If you already have tools, it will cost 300-1000 to replace yourself. ₽. In the service you will take 1500-3500 ₽ But take the risks into account:
- ❌ Damage to the plume or matrix during disassembly.
- ❌ Dust in the glass (repair required).
- ❌ Incorrect installation leading to distortion in the photo.
So the bottom line is, if you've never repaired your phones, you should go to the service, and if you've had experience disassembling your gadgets (like changing your battery or screen), you can try doing it yourself.
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Saving on replacing camera glass is only justified with the tools and experience, and without them, the risk of damaging the phone outweighs the benefits.