Why does the Redmi Note 8 break and when should it be changed?
The Xiaomi Redmi Note 8 screen is one of the most vulnerable parts of the smartphone, despite the stated protection of Gorilla Glass 5. Even a slight fall on asphalt or hitting a hard surface can lead to cracks, chips or complete destruction of glass. 80% of the damage occurs due to:
🔹 Mechanical impacts – falling from a height of 50 cm and above almost guaranteed to leave traces, and the glass can crack even when hitting the corner of the body, if the force of impact exceeded the strength limit.
🔹 Display pressures – many users are unaware that pressing the screen hard (like when the phone is in your back pocket and you sit down) can cause microcracks, and over time they diverge to form a web».
🔹 Temperature changes – if you leave your smartphone in the cold (-15°C and below) or vice versa, under direct sunlight in the car (+50°C), glass can be deformed, rarely causing instantaneous destruction, but weakening the structure of the material.
Replacement of glass should be planned in three cases:
- Cracks interfere with the sensor (the screen does not respond to touch or is triggered spontaneously).
- The chips touch the matrix - under the glass you can see divorces, stripes or spots, which expand over time.
- Damage threatens safety: sharp edges can cut fingers or damage the film layers of the display.
How much does it cost to replace glass on the Redmi Note 8 in 2026: a comparison of prices
The cost of repairs depends on three key factors: the type of glass, the location of the repair and the complexity of the work. The table below is the current prices for Moscow, St. Petersburg and the regions (updated in June 2026).
| Type of repair | Xiaomi Service Center | Authorized partner | Informal workshop | Self-sustaining replacement |
|---|---|---|---|---|
| The original glass + job | 4 200–5 000₽ | 3 800–4 500₽ | 2 500–3 500₽ | 1 500–2 200₽(glass) |
| High quality analogues (e.g. Nillkin) | — | 3 000–3 800₽ | 2 000–2 800₽ | 800–1 500₽ |
| Budgetary analogue (Chinese glass) | — | — | 1 500–2 200₽ | 500–1 000₽ |
| Glass replacement + touchscreen (if the sensor is not working) | 6 000–7 500₽ | 5 500–6 500₽ | 4 000–5 000₽ | 3 000–4 000₽ |
Important: in 2026, the original glass for the Redmi Note 8 is not officially delivered - Xiaomi stopped their production.
Prices in the regions may differ by 15-20% in a lower direction (for example, in Yekaterinburg or Novosibirsk, the replacement will cost 300-500 dollars).₽ In smaller cities, the range is even greater, with some workshops taking 1,800-2,500.₽ for working with your glass.
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Before repair, check whether the cost of the diagnosis is included (sometimes it is allocated a separate line of 300-500).₽) In informal services, the warranty is often only on the glass itself, not on the quality of the installation.
Official service vs. informal workshops: where to change
Choosing between a Xiaomi service center and a private workshop is always a trade-off between price, quality and speed, and let’s look at the pros and cons of each option.
🔧 Xiaomi Service Center (Authorized)
- ✅ 12 months warranty for work and parts (using original or certified analogues).
- ✅ Official diagnostics – check not only the glass, but also the integrity of the plumes, matrix, battery.
- ✅ Use specialized equipment (for example, vacuum presses for gluing glass).
- ❌ Expensive by 20-30% compared to informal workshops.
- ❌ Long repair period – from 3 to 7 days (during peak periods up to 2 weeks).
🛠️ Informal workshops
- ✅ The price is lower by 30-50% - you can keep up with 2000-2500₽ work.
- ✅ Quick repairs – many workshops make a replacement in 1-2 hours (sometimes right in front of you).
- ✅ Flexible approach – you can bring your own glass or choose a budget analogue.
- ❌ The risk of poor-quality installation - if the master poorly cleans the display of old glue, bubbles will remain under the glass or over time it will peel off.
- ❌ 1-3 month warranty (or no warranty at all).
- ❌ There are no original parts – even if they promise “original”, in fact it will be a premium analogue.
⚠️ Attention: In 2023-2026, fraud cases have increased when unofficial workshops deliberately damage a matrix or plumes to impose expensive repairs. Before handing over your phone, take a picture of its condition and request a certificate of reception and transmission describing the defects.
🏠 Self-replacement: Is it worth the risk?
If you have experience in electronics repair, you can save up to 50% of the cost by buying glass separately (from 500).₽ However, the process is complicated for the Redmi Note 8 for AliExpress or local parts stores:
- 🔧 You need to completely disassemble the phone - remove the back cover, turn off the battery, dismantle the display module.
- 🔥 The risk of damaging the plumes of the touchscreen or matrix - they are very fragile and with careless handling break.
- 🧴 The glue for the glass must be of high quality (e.g, B-7000 or LOCA), Otherwise, the glass will fall off in a week.
What happens if the glass is not properly glued?
Step-by-step: how to change the glass on the Redmi Note 8 yourself
If you decide to repair yourself, follow this instruction: working hours: 2-3 hours (for beginners - up to 4-5 hours).
- 🔧 Set of screwdrivers (cross, flat, flat, T3, T4).
- 🧲 Screen suction cup.
- 🔥 Hair dryer or thermo-air station (for softening glue).
- 📏 Plastic mediators (to separate glued parts).
- 🧴 Clay. B-7000 or LOCA + UV lamp (if the glass is glued to a light glue).
- 🧻 Lilaless wipes and alcohol for cleaning.
Turn off the phone and remove it. SIM-memory-card
Reduce the battery to 20-30% (for safety)
Prepare the workplace: clean desk, good lighting
Take photos of each stage of disassembly (useful for reverse assembly)
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Step 1: Disassembling the phone
1. heat the hair dryer back cover around the perimeter (temperature 60–70)°C) for 2-3 minutes. This will soften the glue.
2. Insert a plastic mediator into the gap between the lid and the body and gently slap it. Start at the bottom corner (near the connector). USB-C).
3. After removing the lid, disconnect the battery by disconnecting the plume (it is under the black film).
Step 2: Dismantling the display module
1. Heat the screen around the edges with a hairdryer (do not direct hot air into the center - you can damage the matrix!).
2. Suction the glass and carefully separate it from the body with mediators. Movements should be smooth, without jerks.
3. disconnect the plumes of the display and touch screen (they are fixed on metal latches - put them with a screwdriver).
Step 3: Removing old glass and glue
1. Place the display module on a flat surface with glass upwards. Cover the matrix with a protective film (so as not to scratch).
2. Dryer heat the old glass and remove it with tweezers. Remove the glue residues with alcohol or a special solvent.
3. Clean the surface of the matrix from dust and fat with a lilaless napkin.
Step 4: Installation of new glass
1. Apply the glue to the matrix in a thin layer (if you use it) LOCA, 2-3 drops in the center are enough - the glue spreads when pressed).
2. Apply the new glass carefully, combining the holes under the speaker and the camera. Press it and remove the excess glue.
3. If the glue is UV-curing, place the module under the lamp for 5-10 minutes. B-7000 1-2 hours of drying at room temperature.
Step 5: Reverse Assembly
1. Connect the display and touchscreen plumes to the motherboard.
2. Install the display module back into the housing and fix it with glue around the perimeter.
3. Connect the battery, check the performance of the screen (sensitivity, color reproduction).
4. Close the back cover and snap it (you can additionally glue on the edges).
⚠️ Warning: If the screen does not respond to touch after assembly or vertical stripes appear, the touchscreen plume is damaged, in which case the entire display module will need to be replaced (cost - from 4 000 000 USD).₽).
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Replacing glass on the Redmi Note 8 is only justified if you have experience. If you have never repaired a smartphone, you should contact a workshop - saving 1,000-1 500₽ There is no risk of completely disabling your phone.
Where to buy glass for Redmi Note 8: a review of trusted sellers
The quality of glass directly affects the durability of repairs. Cheap analogues (price up to 500)₽) They often have poor light transmission, distort colors and quickly get scratched, and the best option is premium analogues from Nillkin, Olixar or Spigen (cost 800-1 500).₽). Where to buy them:
| The playground | Price (₽) | Pluses | Cons |
|---|---|---|---|
| AliExpress | 500–1 200 | ✅ Big choice, low prices✅ You can order glass. + glue + toolbox | ❌ Long delivery (2-4 weeks)❌ The risk of obtaining poor quality goods |
| Yandex Market | 800–1 800 | ✅ Quick delivery (1-3 days)✅ You can choose a seller with a high rating | ❌ Prices are higher than on AliExpress❌ Not all sellers give a guarantee. |
| Avito | 600–1 500 | ✅ Can I buy glass? + replacement service “in one bottle»✅ Sometimes you get original parts from the disassembly. | ❌ Risk of running into fraudsters❌ No way to check quality before purchase |
| Local parts stores | 700–2 000 | ✅ You can touch and inspect the glass before buying.✅ Often give a 1-3 month guarantee | ❌ Choice limited❌ Prices can be inflated. |
When choosing glass, pay attention to:
- 📏 Thickness – the original glass Redmi Note 8 has a thickness of 0.21 mm. Analogs thicker (0.25-0.3 mm) can impair the sensitivity of the sensor.
- 🔍 Coverage – quality glass has an oleophobic coating (repels fingerprints).
- 🛡️ UV protection – if the glue is cured under the lamp, the glass should not turn yellow over time.
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Check the reviews of the seller before buying, a good sign is if the comments contain a photo of the installed glass (without bubbles and with normal sensor sensitivity).
Frequent mistakes when replacing glass and how to avoid them
Even experienced craftsmen sometimes make mistakes that lead to additional costs, and here are the most common mistakes and ways to prevent them:
🔥 Mistake 1: Overheating of the matrix by a phenome
Many beginners heat the screen for too long or at high temperatures (over 80).°C), which leads to:
- Detachment of polar filters of the matrix (yellow spots appear).
- The stains are broken (they are broken and broken when they are broken).
- Deformation of plastic elements of the body.
How to avoid: Use a temperature-adjusted thermo-air station (optimum 60–70)°C) or keep the dryer 5-7 cm from the screen.
🧴 Mistake 2: Wrong glue
Cheap glue (such as superglue or Moment) is not suitable for glass - it:
- It does not provide a uniform fit (bubbles will appear).
- It turns yellow and cloudy over time.
- It can damage the matrix (aggressive composition corrodes polar filters).
How to avoid: Use only specialized adhesives — B-7000, LOCA UV or T-7000. For LOCA mandatory UV lamp!
🔧 Mistake 3: Damage to plumes
The touchscreen and display plumes in the Redmi Note 8 are very thin and fragile. They are easy to break if:
- Too much pulling on the plume when disconnecting.
- Do not fix the plumes when assembly (they can be pinched with the body).
- Use metal tools instead of plastic mediators.
Avoid: Disconnect the plumes gently by putting the latches on the plastic blade. When assembly, make sure that the plumes are flat and do not overflex.
📱 Mistake 4: Poor sensitivity after replacement
If the screen reacts to late touches or “missing” taps, the problem may be:
- Poor quality glass (too thick or with a defective coating).
- Bad slugging (air bubbles press on the sensor).
- Damaged touchscreen plume (even a microcrack can disrupt the signal).
How to avoid: Before final assembly, check the sensitivity of the screen by connecting the plumes to the motherboard. If the sensor is "glutting", glue the glass or replace the plume.
⚠️ Warning: If after changing the glass, the phone stopped charging or does not turn on, chances are you forgot to connect the battery or damaged the contacts on the motherboard!
Alternatives: When replacing glass is not appropriate
Sometimes it costs almost the same amount to repair the glass as buying a new (or used) phone.
- 💸 The cost of repairs exceeds 50% of the price of a smartphone (for example, if you are offered to replace the glass). + 7,000-matrix₽, A used Redmi Note 8 costs 8000-9000₽).
- 🔄 The phone already had problems before the glass damage (broken battery, faulty camera, "glutchy" Wi-Fi).
- ⏳ You are planning to change your smartphone soon (for example, on the Redmi Note 12 or the Redmi Note). POCO X5).
🔄 Option 1: Sell for spare parts
Even with broken glass, Redmi Note 8 can sell for 1,500-3000₽ (depending on the condition of the other components:
- 🔋 Working battery (if capacity is above 80%).
- 📷 A good primary camera (48 MP, Sony) IMX586).
- 📶 Communication modules (Wi-Fi, Bluetooth, 4G).
- 🖥️ Motherboard (if the phone is switched on).
Where to sell:
- Avito (Separate parts for phones)
- Groups in VK and Telegram (for example, “I will buy spare parts for Xiaomi”).
- OLX (If you are in Ukraine or Kazakhstan).
🆕 Option 2: Buy a used Redmi Note 8 with hands-free warranty
On the secondary market Redmi Note 8 in good condition is 6000-9000₽. When buying, pay attention to:
- 🔋 Battery status (check in Settings) → Battery condition - capacity should be not lower than 85%).
- 📱 Sensor performance (test multi-touch in the Touch Screen Test app).
- 📷 Camera (take photos under different lighting conditions – no artifacts).
- 📡 Network (check work) 4G, Wi-Fi and Bluetooth).
Where to look:
- Avito (filter on the seller's reviews).
- Yula (often come across phones "with hands" with a guarantee of 1-3 days).
- Local forums (e.g, 4PDA in the section "Buy/Sales»).
♻️ Option 3: Trade-in in the salons
Some salons (e.g., Svyaznoy, MTS, Beeline) accept old smartphones in trade-in, even with a broken screen. For Redmi Note 8 you can get a discount of 1000-2 500₽ - The new phone:
- The phone should be turned on (even with broken glass).
- There should be no damage to the body (cracks, dents).
- The battery should hold a charge (at least 10-15%).
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If you are not willing to spend 3,000 to 5,000₽ It is often more profitable to repair, sell your phone for parts or buy a used analogue!