Modern smartphones, including the popular Xiaomi Redmi 8 Pro, often require interventions in their internal design, which may be necessary to replace broken glass, battery failure or clean the dynamic system of dust. However, unlike older models, modern devices are assembled with minimal gaps and adhesives, making the disassembly process more complex and risky.
Before you start, it's important to realize that any physical interference with the case will void the official warranty. If your device is still in warranty service, it's best to go to an authorized service center. But if the warranty has already expired or the damage is mechanical in nature, not subject to free repair, then replacing the components yourself will save a significant amount of money.
In this article, we will discuss in detail how to properly and safely remove the back cover of the Redmi 8 Pro. We will look at the necessary tools, safety techniques when working with lithium batteries and the subtleties of dismantling the glass panel to avoid chipping and cracking in the process.
Preparation of the workplace and the necessary tool
A good disassembly begins long before you pick up the first tool, and you need to organize a clean, well-lit space where small screws and plumes are not lost, and the surface of the table should be covered with a soft mat or silicone mat, so that the glass back cover does not scratch when you lay it.
The basic toolkit should include specialized devices, the use of kitchen knives or needles is strongly discouraged, as they can easily damage the internal components or puncture the battery.
- 🔥 Dryer or thermal pistol - for softening the adhesive layer along the perimeter of the body.
- 🔧 Set of screwdrivers - necessarily the presence of a cross screwdriver PH00 or PH000.
- 💳 Plastic cards or mediators – for gently snapping the lid without damage.
- 🧲 Magnetic mat or organizer - for sorting screws of different sizes.
Pay special attention to the heating element. A normal hair dryer may not give you enough temperature, so professionals use temperature-adjusted thermophens. If you use a household hair dryer, warm the case longer, but make sure that the plastic frame does not begin to melt.
⚠️ Warning: Never heat the area directly above the battery to temperatures higher 60-70 Celsius, overheating of a lithium polymer battery can cause it to ignite or swell.
Primary steps: SIM extraction and housing heating
The first step of any Xiaomi disassembly is to extract the tray for the SIM-This not only frees up access to some internal screws (though there are no under the tray in this model), but also prevents accidental damage to the tray when the case is deformed during heating.
Once the tray is removed, you need to warm up the perimeter of the back cover. The glue that holds the glass becomes elastic at about 80 degrees. Warm up the edges of the device evenly, constantly moving the hair dryer around. Do not hold the jet of hot air at one point for longer than 3-5 seconds.
You can check if the glue is ready to be dismantled by carefully trying to insert a plastic card into the junction between the frame and the glass at the bottom of the device. If the card enters with a little effort, but goes beyond 2-3 mm without crunch, then the temperature is correctly selected.
Under excessive mechanical pressure, when heated, the glass can burst. Act smoothly, allowing heat to penetrate deep into the adhesive layer.
Rear cover detachment process
The best way to start opening the case is to start at the bottom end, in the area of the speaker or charging connector. Carefully insert a thin plastic card or a special indentation into the gap. Make a small rotation to create an initial hole sufficient for insertion of the mediator.
Now, without taking the map out, you should stick it along the side of the map, and the motions should be sliding, parallel to the plane of the screen, and your job is to layer the glue, not cut it, and if you feel strong resistance, stop and add heat, and if you force the lid to come off, it will break.
- 🛠 Move the tool smoothly, without jerks, around the perimeter of the device.
- 👀 Visually monitor the position of the blade so as not to touch the plumes if they come close to the edges.
- 🔄 Reheat the cooling areas if the process is delayed.
Once you've passed the entire perimeter, the lid should be removed from the frame, but don't be too quick to remove it completely. At the top of the device, under the lid, there may be plumes going to the buttons or antenna contacts that are glued to the inside of the glass.
⚠️ Warning: When lifting the cover, make sure that the fingerprint scanner plume or antenna wire is not glued to it.
Disabling plumes and dismantling the protective panel
When the lid is lifted, you'll have access to the insides of your smartphone, first of all, you need to turn off the device, find the battery connector on the motherboard, and gently unplug the plume, and then use a plastic blade to do that, putting the connector up from the bottom up.
Only after the battery is turned off can you continue to work. Now you need to remove the plastic decorative panel that covers the main part of the components, it is attached to several screws and locks around the perimeter. Unscrew all the visible screws, paying attention to their length — in different models of Xiaomi they may differ.
☑️ Checklist before panel removal
The plastic panel can also be glued in some places, and you can walk around the edges of the map carefully, and underneath this panel, you can see the main modules: the motherboard, the main camera module, and the vibrator motor.
To completely remove the cover or replace components that require access to the bottom of the board, you may need to unplug the display plumes. Do this extremely carefully, as the connectors in the Redmi 8 Pro are fragile enough.
Specifics of work with the glue layer and assembly
When you reassemble the device, the old adhesive layer is likely to lose its properties, and the glue residue needs to be carefully removed from the frame and the lid itself, and you can use isopropyl alcohol and a plastic scraper, and the surface needs to be perfectly clean and fat-free.
Use a special glue B-7000 or E-8000 to fix the lid, or a pre-prepared duct tape (double-sided tape) cut out along the outline. Apply the glue with a thin strip, avoiding hitting the cameras and speaker. Excess glue, protruding out, is easily removed with a finger, rolling into the coils until they are frozen.
| Work segment | Time required | Temperature criticality | Risk of damage |
|---|---|---|---|
| Heating the hull | 3-5 minutes | High (80°C) | Medium (battery overheating) |
| Perimeter opening. | 5-10 minutes | Low. | Tall (glass chip) |
| Shutting down the plumes | 1-2 minutes | Absent. | Critical (steel break) |
| Fixing the lid | 30-60 minutes. | Absent. | Low (shift) |
After applying the glue, press the lid tightly against the case and lock the device with money bands or special clips for 30-60 minutes, which will ensure reliable sealing and dust protection in the future.
What to do if the cover is not glued?
Typical errors and precautions
The most common mistake of beginners is rushing.In trying to save time on heating, users put in excessive effort, which leads to cracks in the glass.Remember, the Xiaomi Redmi 8 Pro has a glass back panel that requires delicate handling.
Another mistake is losing the screws or entanglement, and screws of different lengths screwed in the wrong holes can hit the motherboard and break the paths on the board when tightening. Always sort the fasteners as you disassemble them.
- 🚫 Do not use metal tools to wove the cover – they conduct current and can cause short circuits.
- 🚫 Do not ignore battery bloating – if the battery is inflated, it can not be warmed or pierced.
- 🚫 Do not leave your phone unattended with the battery plume disabled for a long time, this can lead to a deep discharge.
⚠️ Warning: If you damage the plume connecting the main board to the bottom board during the disassembly process, the phone may stop seeing the network or charging.
Technology and accuracy are key to successful repairs, and if you are not confident at any stage, it is best to stop and consult professionals to avoid aggravating the breakdown.
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Use a screen suction cup with the heating, lift the edge of the lid with a suction cup, and then insert a plastic card, which will make it much easier to start the opening process.
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The key to success is patience and the right temperature. Don't rush the lid off until the glue is soft around the perimeter.