Xiaomi Redmi Note 8 Pro has become a real hit with sales due to its balance between performance and cost, but active operation often leads to damage to the body or failure of internal components. Self-disassembly of this device requires not only accuracy, but also understanding the specifics of the design, since the smartphone has a glass rear panel and a tightly planted frame. Unlike the simpler models, there are no obvious entry points, and improper handling of heating can lead to the destruction of the rear window.
The dismantling process starts with risk assessment and workplace preparation, because the cost of error is high — you can damage the display module or plumes, which will make the repair economically inefficient. It is critical to understand that even with all the tools, the lack of experience with adhesive joints can complicate the task. Next, we will consider a detailed algorithm of actions that will help you safely open the case and get to the internal nodes of the device.
Before you start physically affecting the body, you need to make sure that you have all the necessary specialized tools at hand, as a standard set of screwdrivers will not cope here. The Redmi Note 8 Pro back glass is glued around the perimeter and requires mandatory preheating to 80-90 ° C for safe separation. Ignoring this stage often leads to chipping or complete destruction of the rear cover, which will then have to be searched for a replacement.
Tools and workplace preparation required
No modern smartphone can be disassembled without the use of specialized tools that minimize the risk of damage to fragile elements. To work with the Redmi Note 8 Pro, you will need not only a standard cross screwdriver, but also suction cups, mediators and heating elements.
Organize workspace so that all the details are at hand, and the lighting allows you to see the smallest screws and connectors. Using a magnetic mat will help not lose fasteners, which in modern Xiaomi smartphones can be microscopic. It is also highly recommended to have isopropyl alcohol or a special liquid to dissolve glue.
- 🔧 Precision screwdriver set (PH000, Y-shaped for some modifications)
- 🌡️ Thermostol or hair dryer for uniform heating of the body
- 💳 Plastic cards or mediators for opening the perimeter
- 🧲 Magnetic card or tray for sorting screws
- 🧴 Isopropyl alcohol and a thin syringe for working with glue
⚠️ Warning: Using an open fire or a building hair dryer at maximum power without temperature control can cause battery bloating or damage OLED-heat-matrix.
Workplace preparation also includes (antistatic) protection, although it is easy to work on a clean surface without synthetic fabrics at home, it is important that the room does not have drafts that can blow out small parts, and sufficient space to place (disassembled) components in chronological order.
☑️ Ready to disassemble
Primary dismantling: Removal of the back cover
The most difficult step for beginners is to separate the back glass panel, as the factory adhesive becomes polymerized over time and becomes very durable. You need to warm the perimeter of the device evenly, paying special attention to the corners and areas around the camera module, where the adhesive is usually the most.
Once heated, use a suction cup to create a small gap between the frame and the glass, and gently insert a thin mediator. Move the tool along the perimeter, trying not to damage the plume of the fingerprint scanner that runs at the bottom of the case. If you feel strong resistance, it is better to add a little more heat than to apply physical force.
| Heat zone | Warm-up time | Temperature. | Risks. |
|---|---|---|---|
| Perimeter of the shell | 2-3 minutes | 80-90°C | Deformation of the framework |
| Camera area | 1-2 minutes | 70-80°C | Darkening of the lenses |
| The bottom (scanner) | 1 minute | 60-70°C | Damage to the plume |
| Central part | Not required | - | Battery bloating |
When the lid is completely separated from the glue, it should be carefully placed in a safe place, preferably on a soft fabric, so as not to scratch the glossy surface. Now you will have access to the insides of the smartphone, but it is too early to rush to remove the protective screens. The first thing you need to visually examine the condition of the internal plumes and make sure that there is no visible damage from previous attempts to repair or fall.
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If the rear window cracked, before heating, paste it with transparent cross-cotch tape - this will prevent fragments from scattering and finger cuts.
Disabling the plumes and removing the protective plate
Inside the case of the Redmi Note 8 Pro, the main board is covered with a metal protective plate, which is screwed with many screws of different calibers. Before you start to unscrew them, be sure to turn off the battery plume to turn off the device and avoid short circuits when working with other components. This is the golden rule of electronics repair, the violation of which can lead to the failure of the power controller.
Once the battery is turned off, you can start dismantling the screws that fix the metal screen. It is recommended to use a magnifying glass or a macro shot of the phone to remember the location of the screws of different lengths, since twisting them out of their holes can penetrate the motherboard through. Carefully fold all the screws according to their location on the circuit or magnetic mat.
- 🔌 Carefully bend the main battery plume with a flat blade.
- 🔩 Unscrew all visible screws from the motherboard metal protection
- 📱 Remove the metal plate, pulling it over a special protrusion
- 🔍 Check the condition of the display and touch screen connectors
When you remove the protection, you will have access to the main display connectors, touchscreen and camera plumes. To further dismantle, you need to use a plastic blade to snap the connectors, avoiding the use of metal tools that can damage the contacts. Act gently but confidently, since the plastic fixtures of the connectors are quite fragile.
⚠️ Warning: Never pull the plumes unless they are snapped – first make sure you understand the connector fixing mechanism correctly, otherwise you will cut the contacts.
Removal of the battery and replacement of components
In the Xiaomi Redmi Note 8 Pro, the battery is mounted on double-sided tape, making it difficult to remove without the risk of deformation. To safely dismantle the battery, you need to apply a special liquid (such as a B-7000 or isopropyl alcohol) under the edges of the battery and wait a few minutes for the solvent to penetrate the adhesive layer.
Use plastic cards or special tapes to carefully pull the battery. If you are planning a replacement, make sure that the new battery has the original labeling and the appropriate capacity specified in the device specification. Installing a low-quality copy can lead to rapid discharge or even bloating after a short time.
When replacing other components, such as the charging module or vibrator, make sure that the plumes are correctly placed in the guide channels. The wrongly laid plume can be clamped during assembly, which will cause it to be rubbed and broken in the future. All flexible cables must lie flat, without clamping or tension.
How to check the integrity of the battery?
Dismantling of the display module and the main board
If your goal is to replace a broken screen, then after turning off all the plumes, you need to remove the dynamic conversation speaker and front camera, which can interfere with access.The main board in the Redmi Note 8 Pro is held on several screws around the perimeter and often has additional fasteners in the area of the connectors.
Removing the display may require additional heating of the front of the body if the adhesive was not re-applied during previous repairs. However, in most cases, after turning off the plumes and removing the frame, the module is easily separated, the main thing is not to damage the plume of the touchscreen, which is often assembled with the matrix, but has a very thin structure.
When working with the motherboard, avoid touching contacts with your fingers, as fat traces can oxidize over time. If you change the board entirely, make sure the new motherboard version is compatible with your set of components, as Xiaomi often releases device revisions with different screen and camera vendors.
- 📷 Remove the main camera module, disabling its plume first
- 🔊 Remove the multimedia speaker from the bottom of the case
- 🔌 Disconnect the antenna cable (coaxial wire) from the board
- 🧩 Carefully raise the motherboard, controlling the position of the buttons
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The main board is removed only after the complete disconnection of all plumes and antenna wires, otherwise there is a risk of breaking contacts during the lift.
Assembly of the device and verification of functionality
The assembly is done in reverse disassembly order, but requires even more attention to detail. Before the final fixation of the back cover, you need to conduct an initial test of the device: connect the battery, display plumes and touch screen, then try to turn on the smartphone, which will make sure that all systems are working before you seal the case.
If the device is switched on, check the sensor, cameras, speakers, microphone and communication modules. Make sure that the fingerprint scanner responds to touch, as its plume often suffers from sloppy assembly. Only after successfully passing all tests can you apply a new glue and install the back panel.
To fix the back cover, use a special glue sealant or ready-made adhesive frame (B7000), applying a thin, uniform layer around the perimeter. Press the edges hard and lock the device with rubber bands or a load for 15-20 minutes before the initial grasp. Full polymerization of the adhesive takes about 2-4 hours, so it is better not to load the smartphone at this time.
⚠️ Warning: Do not turn on the device if you notice sparkling, smoke or smell of burning – immediately turn off the battery and check that all connectors are connected correctly.
The final step will be to check the tightness (at least visually) and clean the case of glue residues and fingerprints. Pro properly assembled Redmi Note 8 Pro should work steadily, and all buttons have a clear tactile response without jamming. If you followed the instructions, your smartphone will get a second life.
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Leave your smartphone with a new battery or screen unloaded by 10-15% in the first cycle of operation – this will help calibrate the power controller.