Redmi Note series smartphones have proven to be reliable devices, but even the most durable equipment requires maintenance over time. Owners of the Redmi Note 8 T model often face the need to replace a broken display, a worn-out battery or a failed charging connector. Self-disassembly of the device allows you to save a significant amount of money on the services of the service center, if you act carefully and consistently.
The process of dismantling the Redmi Note 8 T has its own features related to the design of the body and the location of the internal components. The rear glass panel is attached to a durable adhesive layer, and underneath it hides. NFC-An antenna that is easily damaged by careless opening, understanding the architecture of the device and having a specialized tool are key factors for successful repairs without further damage.
Before starting work, you need to prepare a good lighting workplace and make room for small parts, and then we will look at each stage of the dismantling in detail.
⚠️ Warning: Before starting any work, be sure to turn off the smartphone. Working with conductive elements of the device on can lead to short circuit and failure of the board.
Tools and workplace preparation required
The Xiaomi Redmi Note 8 T is not capable of being disassembled without a suite of tools. Using improvised tools such as knives or pins greatly increases the risk of damage to the body and internal plumes. Professional approach starts with the right tools to minimize the risks.
To remove the back cover and the internal components, you will need a hair dryer or thermophen to soften the glue. A normal household hair dryer may not give you enough temperature, so it is better to use professional equipment or a heating pad, and plastic mediators and suction cups that allow you to work delicately will also be indispensable assistants.
- 🔧 Torx screwdriver set T4 and T5 cock-wheel.
- 🔥 A hair dryer or heating platform for heating the adhesive layer under glass.
- 💳 Plastic blades, mediators and a thin knife for neat opening of the body.
- 🧲 Magnetic mat for sorting screws of different sizes.
The screws in the Redmi Note 8 T come in different lengths and threads, and entanglement can damage the threads in the plastic racks or, worse, break the board.
⚠️ Warning: Metal tools can damage the glass of the back cover or scratch the frame. Use metal only for screws, and only plastic to open the case.
Removal of the back cover and dismantling NFC-antennae
The first and most important step is to separate the back glass panel, and in the Redmi Note 8 T, it's glued around the perimeter, and underneath it is a black film. NFC-The heat must be uniform to avoid thermal shoals and cracks in the glass.
After sufficient warming up (usually 2-3 minutes at a temperature of about 80-90 degrees at the edges), you need to carefully insert the suction cup into the bottom of the lid. Pull the suction cup up, create a small gap into which a plastic mediator is immediately inserted. Movements should be sliding along the perimeter, gradually cutting through the adhesive layer.
The most critical part is working on the top of the smartphone, where the camera module and the flash are located, where the glue layer can be thicker, and the risk of damaging the glass is higher. Don't try to tear the lid off by force; if it doesn't move, the heat should be repeated. Inside you will see a black sticker that is part of the NFC-module.
- 📱 Heat only the edges of the body, avoiding prolonged exposure to the central part.
- 🔪 Use a thin line or a special knife for the initial glue cut if the suction cup does not hold.
- 📡 Be extremely careful with black film – this is an antenna, the rush of which will deprive the smartphone of the contactless payment function.
Once the lid is removed, you will have access to the main board, battery and camera module, and there may be glue residues on the inside of the lid that need to be carefully removed before being reassembled to ensure a tight fit.
Disabling the plumes and removing the protective plate
After successfully removing the back cover, you can’t immediately start to unscrew the circuit board screws. The first step should always be to de-energize the device by turning off the battery plume. In the Redmi Note 8 T, the battery connector is located at the bottom of the motherboard and is closed with a metal protective plate.
To access the connectors, you need to twist out a few screws that hold the metal screen, usually about 10-12, and they can vary in length, and once you remove the plate, you can access the main plumes: the display, the battery, the main camera module and the auxiliary cameras.
The plumes are turned off carefully, by squirting with a plastic blade or nail, and you can't pull the wires, so you disconnect the battery first, then all the other components, and this ensures that you don't short-circuit when you accidentally touch the contacts with the tool.
| Component | Location. | Features of withdrawal |
|---|---|---|
| Battery | The bottom of the fee | First to turn off |
| Main display | Top of the pay | It requires care. |
| Camera module | Centre/Top of the fee | Fragile connector |
| Charging charges | Lower plume | Goes through the whole body. |
Once all the plumes are turned off, the screws that hold the motherboard itself are twisted, and the number of screws can vary, but they are usually located around the perimeter of the board and in the center, and then the board can be gently raised to access the lower components.
What to do if the plume is broken?
Removal of the battery and replacement of the batteries
The battery in the Redmi Note 8 T takes up a significant portion of the internal volume and is glued to the frame with double tape. This is done for locking, but makes it difficult to replace. Trying to remove the battery by force without first heating can damage and ignite.
To safely extract, you need to re-heat the battery, the temperature should not be extreme, just soften the glue, and after heating under the edge of the battery, you carefully infuse plastic cards or special tapes to cut off the adhesive layer.
Important: Do not puncture the battery or bend it too much. Lithium polymer cells can ignite when deformed. If the battery is swelled, you need to work with it with extreme caution, avoiding pressure.
- 🔥 Heat the back of the case (if the lid is removed) or gently warm through the frame.
- 💳 Use plastic cards to tamper with, moving from the center to the edges.
- 🧹 After removing the old battery, clean the surface of glue residues with alcohol or a special solvent.
The new battery is installed on a pre-applied double-sided tape. Before final fixation, it is recommended to check the operability of the new element by connecting the plume and turning on the phone.
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For easy installation of the new battery, use strips of double-sided tape, sliced to the size of the old battery, which will ensure reliable fixation and prevent backlash.
Dismantling the display and camera module
Replacing the display in the Redmi Note 8 T often requires removing the bezels completely or carefully separating the glass from the body, since the screen is glued around the perimeter. Unlike older models, it uses full lamination technology, which makes replacing the glass separately from the matrix extremely difficult at home.
If you're looking to replace the camera module, after removing the safety plates and disabling the plumes, the modules are removed from their seats. The main module can be further secured by screws. When you remove the lenses, it's important not to touch the lenses with your fingers, so as not to leave fat marks.
The most common way to replace the screen is to change the entire framed module, which makes it easier to move the motherboard, battery and charging board from the old module to the new one, and the adhesive layer on the new frame is usually already made by the manufacturer.
When you're working with the camera, look for rubber seals, which provide tightness and dust protection, and if the seal is damaged when you disassemble it, you'd better replace it or retrieve it carefully to maintain some protection from moisture.
⚠️ Attention: The display matrix is extremely sensitive to point pressure. Do not press your fingers on the screen when you install, hold the module by the edges or a metal frame.
Assembly of the device and verification of functionality
The Xiaomi Redmi Note 8 T is assembled in reverse order, but requires carefulness. Before the final sealing of the case, you need to check the operation of all functions: touchscreen, sound, vibration response, cameras and charging, which will avoid re-disassembly in the event of an error.
When installing the back cover, make sure all plumes are stacked correctly and not clamped.The adhesive layer on the cover should be fresh; the old adhesive should be removed completely and a new B-7000 applied or replaced with a special adhesive frame, which will ensure tightness and tight fit.
The screws are twisted evenly, without undue effort, so as not to break the thread in the plastic. Pay special attention to the screws around the connectors and in the corners of the case. After assembly, wipe the screen and the back panel from the fingerprints.
- ✅ Check the operation of the proximity and lighting sensor.
- ✅ Make sure the speaker sounds clean, without wheezing.
- ✅ Check the charging speed and operation of the Wi-Fi module.
Successful assembly is confirmed by the absence of gaps between the screen and the frame, and between the frame and the back cover. If the lid is receding or creaking, then some screw is twisted incorrectly or the plume interferes with the tight fit.
☑️ Final inspection after assembly
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Good assembly depends not only on the correctness of the actions, but also on the cleanliness inside the case and the condition of the adhesive layers.