Disassembling the Xiaomi Redmi Note 8T is a challenge that owners face when replacing a battery, repairing a camera or cleaning up dust. However, improper removal of the lid can lead to cracks in the case, damage to plumes or loss of leakage. This article is a step-by-step algorithm based on the features of the model, a list of necessary tools and critical nuances that are not written in the standard instructions.
Many users mistakenly believe that it is enough to open the lid with a mediator. In practice, the Redmi Note 8T has hidden latches along the ends and adhesive connection along the perimeter, and improper force can damage antenna lines or display module. We will discuss three methods of disassembly (heated, without heating, and for experienced users), and also tell you how to avoid typical errors.
If you’ve never taken a smartphone apart before, we recommend that you first review the FAQ at the end of the article, which provides answers to frequent questions about warranty, risks, and alternative solutions.
Preparation: security tools and measures
Before you start disassembling, make sure you have everything you need, and if you don't have one tool, you can cause permanent damage.
Suction cup (∅ 5-7 cm) or a special screen holder
Plastic mediator or guitar mediator (thickness 0.3–0.5 mm)
Thin screwdriver with a flat sting (1.5-2 mm)
Dryer or thermo-air station (temperature 60-80 °C)
Scotch for fixing plumes (optional)
Antistatic bracelet or gloves
Loop or flashlight for inspection of latches-->
Pay special attention to temperature. Overheating the case above 90 ° C can damage the battery or display module. The optimal range is 60-75 ° C, and the heating should be uniform. If you do not have a thermal air station, use a household hair dryer at minimum power, keeping it at a distance of 10-15 cm from the housing.
⚠️ Warning: Some users try to heat up their smartphone in a microwave or battery, which will cause the battery to explode or melt the internal components.
Before starting work, completely turn off the Redmi Note. 8T and extract SIM-If the battery is swelling, you'd better leave the disassembly to the service center, and the risk of short circuit is very high.
Method 1: Heated disassembly (recommended for beginners)
This is a good way for most users because it minimizes the risk of damage to the latches, and the basic principle is to soften the adhesive around the perimeter of the lid and then gently tamper with the mediator.
Algorithm of action:
- Heat the body. Turn the dryer on to the minimum power and warm the back cover evenly for 2-3 minutes, paying special attention to the corners. Do not hold the air flow in one place for longer than 10 seconds.
- Hold the suction cup. Attach the suction cup closer to the bottom edge of the smartphone (where the USB-C connector is located). Pull it up carefully, and there should be a small gap.
- Separate the cover. Put a plastic mediator in the gap and slowly drive it along the end, separating the lid from the body. At the corners, apply minimal force - there are antenna contacts.
⚠️ Warning: If the lid fails, don't increase the force, because the glue is probably not softened enough. Reheat for another 1-2 minutes. Also check if the mediator is caught by the fingerprint plume (it is located under the lid on the left).
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If you don't have a suction cup, you can replace it with a wide tape tape loop, and the key is to ensure that the force is evenly distributed when the lid is lifted.
Once the lid is removed, immediately tape it to the table (upward display) to avoid accidentally closing.
- 🔋 Battery: must not be bloated or deformed.
- 📶 Antenna lines: check the integrity of copper tracks around the perimeter.
- 🔌 Trains: Make sure they are not detached from the motherboard.
Method 2: Unheating (for power users)
This is a good way to do it if you don't have a hair dryer or you're afraid of overheating, but it requires more care because the glue stays hard and the risk of damage to the latches is higher.
Procedure:
- Glue the screen with tape (paint or stationery) to protect it from scratches.
- Insert the mediator into the gap between the lid and the case at the USB-C connector. Carefully sway the tool left-right, trying to "swing" the latch.
- Once a gap of 1-2 mm appears, move the mediator along the end, gradually detaching the lid. At the corners, pause and check if the internal elements are caught.
⚠️ Warning: Without heating, the adhesive can resist more, so don't put too much effort. If the lid doesn't respond, it's better to switch to the heating method.
Features of the Redmi Note 8T, which complicate disassembly without heating:
- 🔗 Additional latches near volume buttons – they are easy to break.
- 🧲 Magnetic cover holder at the top (near the camera) – can create the illusion of “glue».
- 🔌 The plume of the fingerprint scanner is glued to the cover - with sloppy movement it can be torn off.
Yes, many times.
Yeah, 1-2 times.
No, it's my first experience.
I prefer to go to the service.-->
Method 3: Partial dismantling (for complex cases)
If the lid is damaged or the glue is too strong (for example, after repair in the service), it may be necessary to partially dismantle the internal components.
Instructions:
- Remove the cover by any of the above methods until it gets stuck on the last latches.
- Unscrew 4 screws (T3 type) around the camera – this will relieve the pressure on the cover.
- Carefully tuck the motherboard with a thin screwdriver (no more than 1-2 mm) and try to separate the lid again.
⚠️ Attention: This method requires experience with electronics. Incorrect handling of the motherboard can lead to contact breaks or chip damage.
After successfully removing the cover, examine it for hidden damage:
| Element | Signs of damage | What do you do? |
|---|---|---|
| Latches | Cracks or chips | Replace the lid with super glue or replace the lid |
| Adhesive compound | Glue residues on contacts | Remove with alcohol or acetone |
| Antenna lines | Darkening or tearing | Check the connection after assembly |
| The print plume | Detachment or tearing | Re-silver |
Common Mistakes and How to Avoid Them
Even with careful disassembly, users often make mistakes that lead to breakdowns, and here are the most common ones and ways to prevent them:
🔹 Too much effort in the underdog.
- 🛠️ Use a mediator no thicker than 0.5 mm.
- 🔄 If the lid fails, heat it again.
🔹 Damage to the fingerprint scanner plume.
- 📍 The plume is located on the left under the lid - do not insert the mediator deeper than 3 mm.
- 🧲 When assembly, check that the plume is not twisted.
🔹 Battery overheating.
- 🌡️ Do not heat one area for longer than 15 seconds.
- 🔋 If the battery is swelling, it is better not to disassemble.
What happens if you break the latch of the lid?
Another common problem is the loss of leakage after assembly, so to avoid this:
- 🧴 Apply a thin layer B-7000 or other electronics glue around the perimeter of the lid before installation.
- 🔧 Twisting the screws cross-cross to avoid distortions.
How to properly close the lid back
Successful disassembly is only half the battle, and it's equally important to build your smartphone properly to avoid sensor or communication problems.
1. Trail check.
Make sure all the plumes (display, cameras, fingerprint scanner) are connected to the motherboard and not clamped. Pay special attention to the flex battery cable - it often falls out when disassembling.
2. Clearing the contacts.
Wipe the antenna lines and lid contacts with an alcohol napkin. Dust or glue residue can degrade the 4G/Wi-Fi signal.
3. Applying glue.
If you used heating, the old glue could lose its properties. Apply a new layer around the perimeter of the lid, receding 1-2 mm from the edges.
4. Installation of the lid.
Start at the top (where the camera is) and gradually press the lid against the body as you move down. Make sure all latches are in place - you should hear light clicks.
5. Functional check.
After assembly, turn on the smartphone and test:
- 📞 Calls and microphones.
- 📶 Network signal and Wi-Fi.
- 🔋 Charging and operation of the battery.
- 📸 Camera and fingerprint scanner.
⚠️ Note: If after the Redmi Note build 8T It's not on, check it out:
- Connecting the battery (possibly the plume has gone).
- Integrity of the power button (it may not be fully inserted).
- No short circuit (smell the board – the smell of burning signals a problem).
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If after the assembly the smartphone does not recognize SIM-The map or the network is not catching, most likely, the antenna lines have been damaged, in which case the cover or soldering of the contacts is required.
Frequent questions after the disassembly
Even if the demolition was successful, users often have additional questions, and we've collected the most relevant ones: