The need to access the internal components of the Xiaomi Redmi Note 8 Pro can arise for various reasons, from the banal replacement of broken display glass to installing a more capacious battery. This model, despite its age, is still popular, and the ability to independently service it can significantly save the owner’s budget. However, before you start working, it is important to realize that opening the case automatically voids the warranty, if it is still valid, and requires maximum accuracy.
The process of disassembling this device is not trivial, as the manufacturer used a perimeter-stick glass back panel rather than screw-mounted as in older models. A heat gun or a quality heating pad will be your main assistants in the first stage. Ignoring safety rules or rushing can lead to plume damage, cracks in the glass or even a battery failure, so preparing the workplace is a critical step.
In this article, we will take a closer look at each step, from heating the case to turning off the motherboard plumes, which tools are really needed and what you can do without, and how to avoid the typical mistakes made by beginners when first disassembling Redmi gadgets. The right approach will allow you to successfully replace the screen, battery or charging connector, returning the device to a second life.
Tools and workplace preparation
The quality disassembly begins long before you first touch your smartphone with a suction cup. You need to organize a spacious, well-lit workplace where nothing will distract from the process. The table surface should be clean and preferably covered with a silicone mat that will prevent parts from slipping and protect them from static electricity. The absence of dust is also important, since small particles can get under new glue or into the camera lens.
The toolkit for working with Xiaomi Redmi Note 8 Pro should be specialized. The use of kitchen knives or sharp metal objects is strongly discouraged, as they damage the internal components or break the battery.
- 🔥 Hair dryer (construction or household with a narrow nozzle) for softening the glue.
- 🔧 Sets of screwdrivers (Torx star) T5, Phillips cross for screws.
- 💳 Plastic blades (mediators) and a suction cup for opening the body.
- 🧴 Dissolving adhesive liquid (B-7000, isopropyl alcohol) and tweezers.
⚠️ Warning: Never use metal blades to separate the back cover from the frame, the risk of damaging the antenna plume or the glass panel itself in this case exceeds 90%.
Pay special attention to the state of the battery before work. If the battery shows bloating or damage, further disassembly becomes dangerous. In such cases, it is better to first discharge the device to a minimum to reduce the risk of fire in case of accidental puncture. Also make sure that you have a high concentration isopropyl alcohol on hand, which will help to safely separate the components without leaving traces.
Procedure for safe removal of the back cover
The most difficult step in the whole process is to carefully separate the back glass panel. The glue used by the manufacturer becomes polymerized over time and becomes very durable, so simple force will not be enough. You need to warm up the perimeter of the device evenly. Keep the hair dryer at a distance of 3-5 cm from the surface, constantly moving the flow of hot air so that you do not overheat one point and damage the display matrix on the back side.
The optimum heating temperature is about 80-90 degrees Celsius, which can be checked by touching the body with the back of the palm - it should be hot but tolerant. After 2-3 minutes of warming up, gently apply the suction cup to the bottom of the back cover and slightly pull up, creating a gap. In the resulting gap immediately insert a thin plastic card or mediator, so that the glue does not grab back.
As you move around the perimeter, continue to warm up and trim the glue with plastic tools. Be especially careful in the area of the main camera module and fingerprint scanner, as there are plumes that can be easily damaged if you move sloppy. Do not try to completely remove the lid immediately until you make sure that all the edges are free of the adhesive layer.
What to do if the cover is broken when removed?
Once the lid is successfully removed, inspect the inner walls of the case, which will leave residues of old glue that must be carefully removed before installing a new part, using soft cloth soaked in alcohol, or scrubbing the residues neatly with a plastic map, the cleanliness of the surface ensures that the new layer of glue is firmly fixed and prevents dust from entering the body.
Disconnection of the battery and dismantling of the protective plate
Once the back cover is removed, the first thing you see is a large black plate covering the bottom of the smartphone, and it's not just a decorative element, it's an important part of the design that protects the connectors and the vibrator module, but before you unscrew the screws, the most important thing you need to do is turn off the battery, which is a critical safety measure that prevents short circuits from accidentally touching the contacts with a tool.
To access the battery connector, you need to unscrew a few screws that hold the bottom plastic lining. Usually, they range from 6 to 8 pieces, and they are all of different lengths. To avoid confusing them when you build them, you should use a magnetic mat or draw a screw layout on a piece of paper, laying them out in the appropriate places.
| Component | Type of screw | Number of | Location. |
|---|---|---|---|
| Lower plate. | Torx T5 | 8 pcs. | Down the perimeter. |
| connector bracket | Torx T5 (short) | 2 pcs. | Near the charging port |
| Dynamician | Phillips / Torx | 2 pcs. | In the lower corner. |
| Maternity fee | Torx T5 (different) | 4-5 pcs. | Under a metal screen |
When you remove the bottom plate, you'll have access to the battery connector, and you'll be able to gently slap the connector with a plastic blade or nail as you move upwards, and you'll be able to make sure you don't undue effort to break the plug on the board. Once the plume is disconnected, the smartphone is completely de-energized, and you can safely continue with the other components.
☑️ Check before disconnecting the plumes
Replacement of the display and work with the frame
The display module in the Redmi Note 8 Pro is glued to a plastic frame, which in turn is attached to the body with screws. If your goal is to replace the screen, you do not need to remove the motherboard completely. Just unscrew the screws around the perimeter of the frame and carefully separate the display module, previously disabling the plumes.
The display and touchscreen plumes are located at the top of the smartphone under a metal screen. To access them, you need to unscrew the screws that hold the metal plate above the motherboard. Beware: screws can be of different lengths, and twisting a long screw into a short hole can break through the paths on the board, which will lead to irreversible damage.
When you disconnect the display plumes, use a plastic tool. The plume is pulled up from the bottom with a slight motion. If the screen is broken and does not respond to touch, make sure that you turn off the display connectors, not, for example, the front camera plume or proximity sensor, which are nearby.
⚠️ Warning: The new display can come without a bezel, in which case you will have to glue the old module to a new frame or transfer all the components (board, battery, speakers) from the old bezel to the new one. B-7000 high-precision.
The new screen is installed in reverse order, and before final assembly, it is recommended to check the health of the new module by temporarily connecting the plumes and turning on the smartphone, which will avoid re-disassembly in the event of a new part failure.
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Use rubber gloves when working with the new display. The fat fingerprints on the inside of the glass can remain permanently after assembly and will be noticeable when the screen is turned off.
Removal of the battery and replacement of components
The battery in the Xiaomi Redmi Note 8 Pro is fixed to double-sided tape, which over time becomes very durable. It just does not work out that way, because there is a high risk of its deformation or puncture. To safely extract, you need to use a solvent of glue (alcohol or special liquid) and a thin line or plastic card.
Apply a little alcohol around the battery perimeter and wait 1-2 minutes for the liquid to penetrate the tape. Then gently, in translational movements, drag a fishing line or map under the battery, cutting off the adhesive layer. Do not use metal objects that can damage the battery shell.
After removing the old battery, clean the seat of glue residues. The new battery should also be prepared by applying a few strips of new double-sided tape or a thin layer of B-7000 glue to the back of the battery, which will ensure reliable fixation and the absence of backlashes that can cause cracking when the vibrator is operating.
When you install a new battery, immediately connect the plume to the motherboard to lock in its position. Make sure the connector is up to click and not squeezed. After that, you can make the final assembly of the device, twisting the screws cross-cross for even pressure distribution.
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The rule of thumb when you're working with a battery is no sharp objects, no high pressure. If the battery doesn't go, add another solvent and wait.
Assembly of the device and verification of functionality
The final stage is assembly, which requires no less concentration than disassembly. Make sure all the plumes are connected correctly and to the end, and the protective metal plates are installed in their places.
Before sticking the back cover, be sure to test all the features: check the touchscreen, speakers, microphone, cameras, vibrator and communication modules. Turn on your smartphone and make sure it sees SIM-If everything works correctly, you can put on a new glue.
The B-7000 glue or analog is applied in a thin continuous strip along the perimeter of the body. The excess glue that is exposed when the lid is pressed should be removed immediately before they are frozen. After applying the glue, it is recommended to fix the smartphone with rubber bands for 15-20 minutes for primary polymerization.
Complete drying of the glue takes about 24 hours, so in the first day it is better not to expose the smartphone to loads and moisture.If you did everything right, your Redmi Note 8 Pro will again please you with speed and quality image, and you will get a valuable experience of self-repair.