The process of dismantling a modern smartphone requires not only accuracy, but also a deep understanding of the design of the device. Xiaomi’s Redmi Note 8 Pro is no exception and has a rather complex internal architecture, where each element fits tightly with the other. Before you start dismantling, you need to understand the risks associated with a violation of factory sealing and loss of warranty.
Many users choose to repair themselves for the sake of saving money or a unique experience with electronics. However, it is worth considering that the wrong actions can damage the plumes or even break the motherboard. In this article, we will look at each step in detail to minimize the likelihood of errors and successfully perform the replacement of components.
⚠️ Note: Any self-disassembly of the device automatically voids the official manufacturer's warranty. If your smartphone is under warranty service, we strongly advise you to contact an authorized service center.
Tools and workplace preparation required
The success of any electronic repair operation depends 90% on the quality of preparation and the availability of specialized tools. To work with the Redmi Note 8 Pro, you will need a set of precision screwdrivers, since the screws in this model have different sizes and types of hats. The lack of a suitable bit can lead to slicing of the screw faces, which will greatly complicate further repairs.
In addition to screwdrivers, a critical element is the heat source for softening the glue. In the factory, a special machine is used, but at home a professional hair dryer or a quality heating pad for the screen is suitable. It is not recommended to use household hair dryers for hair, as they often do not give the desired temperature or, conversely, overheat the body, which is dangerous for the body. OLED-matrix.
You will also need plastic mediators (scapula), a suction cup to remove the back cover and tweezers with curved ends.Metal tools should be used with extreme care so as not to damage the internal components or cause a short circuit.
☑️ Disassembly tools
Primary safety measures and power outage
The first and most important step before any physical manipulation is to turn off the smartphone completely, and you can't try to disassemble a device that is in sleep mode or that just has a screen gone out, and this is to prevent accidental short circuits on the board when the tools come into contact with the components.
After the shutdown, the tray must be removed for SIM-In the Redmi Note 8 Pro, the tray is combined and combined with a microSD card slot. Using a clip or key requires careful pressing into the hole located on the bottom end of the body.
⚠️ Warning: Never puncture or heat a lithium polymer battery. Damage to the battery shell can cause fire or explosion. When working with heating elements, monitor the temperature of the body.
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Before starting work, take photos of the current state of the screws and their location, which will help not confuse anything with the reverse assembly, since screws of different lengths can stand in different places.
Removal of the rear glass panel
The back cover of the Redmi Note 8 Pro is made of glass and is fixed around the perimeter to the double-sided adhesive. Removing it requires uniform heating of the device perimeter. You should only heat the edges, avoiding hot air directly into the center where the camera module and the scanner is located. The optimal heating temperature is about 80-90 degrees Celsius, exposure time is 2-3 minutes.
After heating, the suction cup will create a vacuum grip on the surface of the glass and slightly pull upwards, creating a gap. The resulting gap is carefully inserted plastic mediator. Movements should be sliding along the edge, gradually cutting the adhesive layer. Do not deepen the blade more than 3-4 mm, so as not to damage the side plumes or antenna modules.
What to do if the glass cracks when removed?
Dismantling the protective plate and disconnecting the plumes
When you successfully remove the back cover, you'll see a black plastic plate that covers most of the internal components, and it's mounted with a lot of screws of different calibers, and it's important to remember or photograph the screw layout, because long fasteners can damage the board if you put them in the holes for short screws.
The central part of the plate is blocking access to the motherboard connectors, and once you twist all the screws around the perimeter and in the center, you can gently lift the plate, and underneath it you'll see the main plumes: the display module, the touchscreen, the main cameras, and the fingerprint scanner.
The plumes are turned off using a plastic blade or nail, and metal tweezers are forbidden because you can damage the contacts on the board or break through the insulation, and the battery connector is always turned off first to completely de-energize the device before further work.
| Component | Location. | Type of attachment | Features |
|---|---|---|---|
| Battery | The bottom part | Glue base + plume | Requires careful unhooking |
| Maternity fee | Upper part | Screws + connectors | Hidden under a metal screen |
| Main camera. | Center-top. | Screws + plume | Sensitive to statics |
| Fingerprint scanner | Back cover. | Glue + connector | Connected to the back panel |
Battery extraction and glue handling
In the Redmi Note 8 Pro, the battery occupies a significant part of the interior space and is attached to double-sided tape with increased adhesion. Attempting to pull the battery by force of the tongue or upper edge is strictly prohibited, as this can lead to deformation of the power supply and its ignition.
For safe extraction, it is recommended to use a special hood with suction cups or gently poke the battery with a plastic card, preheating the lower part of the body with a hairdryer. You can also use isopropyl alcohol by dripping a few drops under the edge of the battery to dissolve the glue.
⚠️ Attention: If the battery is swelling, it becomes extremely dangerous to remove it. Any mechanical impact can penetrate the shell. In such cases, it is better to replace the entire module assembled with a frame or consult the professionals.
After removing the old battery, the place under the new one must be carefully cleaned of the residues of the old glue. The surface must be perfectly smooth so that the new battery lay flat and does not create pressure on the back cover during assembly.
Replacement of the display module and assembly of the device
If the purpose of the disassembly was to replace the screen, then after turning off the plumes, you need to remove the dynamic speaker and front camera, which can interfere with the dismantling. The display module in the Redmi Note 8 Pro is often assembled with a frame, which simplifies the process: it is enough to move the motherboard and battery to a new frame.
If only the glass or the matrix without the frame changes, the process becomes jewelry, you need to unstick the old matrix, clean the frame of the glue and carefully install the new one, avoiding dust between the layers, and the assembly is done in the opposite order: first connect all the plumes, then install the protective plate and twist the screws.
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The quality of a new back cover or screen directly affects moisture protection, and even after perfect assembly, the factory level of leakage is almost impossible to restore without a vacuum press.