Xiaomi Redmi Note 8 Pro remains one of the most popular devices of the brand due to the balance of price and performance. However, over time, even reliable equipment requires repairs, from replacing a dead battery to recovering from a fall. You can disassemble the device yourself, but the process requires accuracy and knowledge of the nuances of design.
In this article, you will find a step-by-step photo manual, a list of tools you need, and critical warnings to avoid typical errors. We will examine not only the standard disassembly for accessing the battery, but also the nuances of dismantling the screen, motherboard and camera. Particular attention is paid to the unique feature of the Redmi Note 8 Pro, which is the mounting of the middle bezels on latches and glue, which is often damaged when unguarded.
If you've never taken a smartphone apart before, we recommend that you first get to know the theory and evaluate your strength. In some cases (for example, if you damage the plumes), it's cheaper and safer to go to the service center. But if you're willing to act on your own, let's get started!
Preparation for disassembly: tools and security measures
Before you start disassembling the Redmi Note 8 Pro, make sure you have everything you need. Not even one tool can damage the body or internal components.
- 🔧 Plastic mediators or shoulder blades (2-3 (a) - for separation of the body without scratches.
- 🔨 The screwdriver. PH00 — rear-cover.
- 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
- 🧲 Magnetic mat or container – so as not to lose screws.
- 📱 Suction - to raise the screen (optional, but simplifies the process).
- 🔋 Multimeter – to check the battery before installing a new one.
Also, prepare a clean workspace with good lighting, an antistatic table is perfect, and if it's not, you can use a normal surface, but ground yourself first (for example, by touching the heating battery) to avoid static discharge, which can damage the motherboard.
⚠️ Warning: Do not use metal tools to separate the body! Even a small scratch on the antenna tracks (located around the perimeter of the back cover) can lead to loss of network signal or deterioration of the work. NFC.
If you are planning a battery replacement, pre-order an original or certified battery with a capacity of 4500 mAh. Cheap analogues often have a lower real capacity and can swell in a few months. For the Redmi Note 8 Pro, batteries with articles MB-J20 or BM47 are suitable.
Step 1: Removing the back cover - how not to break the latches
The back cover of the Redmi Note 8 Pro is mounted on 12 screws (6 on each side) and adhesive layer, the main difficulty is plastic latches that easily break when you open a sloppy opening.
- Turn off your smartphone and remove the tray for SIM-map.
- Heat the back cover around the perimeter for 2-3 minutes. Keep the hair dryer at a distance of 5-7 cm, so as not to overheat the plastic.
- Insert the plastic mediator into the gap between the lid and the frame (start with the lower left corner where the Type-C connector is located).
- Carefully swipe the mediator along the perimeter, gradually separating the lid. If you feel resistance, warm up the place again.
After removing the cover, you will see:
- 🔋 Battery with connected plume.
- 📶 Antenna modules (do not touch them unnecessarily!).
- 🔊 Dynamics and vibrator.
- 📷 The main camera module (fixed on a metal frame).
⚠️ Warning: If you find a bloated battery after removing the lid (as seen from the deformation), do not turn on your smartphone and try to charge it! This battery may ignite. Disconnect the battery plume immediately (see next step).
☑️ Preparation for lid removal
Step 2: Disconnect the battery and dismantle the motherboard
Before any manipulation with the internal components, be sure to turn off the battery.
- Put a plastic blade battery connector (located at the top of the battery, next to the camera).
- Carefully pull the plume up. Don't pull the wires, just behind the plastic connector!
Now you can start dismantling the motherboard, which is mounted on 8 screws (of different lengths!) and one metal screen that covers the connectors, and remember the location of each screw, because it's easy to confuse them when you build them, which can lead to short circuits.
| Component | Number of screws | Features |
|---|---|---|
| Motherboard screen | 4 | The screws with threads, do not twist completely |
| The fee itself | 8 | 3 short, 5 long (don't mix up!) |
| Camera. | 2 | Screwdriver screws under the PH000 cross screwdriver |
| Dynamician | 1 | It's on the latches + 1 screw. |
After you unscrew the screws, gently raise the board, starting at the Type-C connector side. Be careful, it has screen plumes, power and volume buttons connected to it, and you need to disconnect them last when the board is already up.
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Take a picture of the location of the plumes before disconnecting - this will help connect them correctly during assembly.
Step 3: Replacing the battery – nuances and errors
The battery in the Redmi Note 8 Pro is glued to the body with double-sided tape.
- Put a plastic blade on either side of the battery and pull it up. If the tape doesn't work, warm it up with a hair dryer (not above 70°C!).
- Remove the residues of the glue from the case and the new battery (you can use isopropyl alcohol).
- Stick the new battery to double-sided scotch (comprised) or a special glue B-7000.
Common mistakes in replacement:
- 🔌 Using metal tools – can puncture the battery.
- 🔥 Overheating with a hairdryer - leads to deformation of the battery.
- 🔄 Incorrect connection of the plume - check the polarity!
After installing a new battery, be sure to check it with a multimeter. the voltage should be in the range of 3.7-4.2 V. If the indicators go beyond this, the battery is defective.
What to do if the battery is swelling?
Step 4: Screen Dismantling – Risks and Recommendations
Replacing the screen with the Redmi Note 8 Pro is one of the most difficult procedures, because the display is glued to the frame, and the plumes are very fragile. If you're not sure about yourself, you better leave it to the professionals. But if you decide to act on your own, follow the instructions:
- Warm up the edge of the screen with a hair dryer (temperature 70–80°C) for 3–5 minutes.
- Insert the suction cup at the bottom of the screen (above the Home button, if any) and pull up.
- As soon as the gap appears, insert plastic mediators into it and gently swipe along the entire perimeter.
After the screen is separated, you will see:
- 📺 Display plume (wide, in the center).
- 🔘 Sensor plume (thin, right).
- 🔊 The plume of the conversation dynamics (at the top of the).
⚠️ Attention: The sensor plume is extremely fragile, and if it breaks, the touchscreen will stop working, and it will cost 30 to 50 percent to replace the new screen!
When installing a new screen, use the original adhesive (e.g., 3M 9448A). Apply it with a thin layer, avoiding hitting the speaker or sensors. After gluing, warm up the screen with a hairdryer (60°C) and press the load for 10-15 minutes.
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If you have broken pixels or bands after you change the screen, check the density of the plumes. Often the problem is solved by reconnecting.
Step 5: Camera Disassembly and speaker – What You Can Fix Yourself
The camera module in the Redmi Note 8 Pro consists of four lenses (basic 64 MP, ultra-wide, macro and depth).
- 📸 Lens pollution (dust, divorces).
- 🔧 Damage to the glass lens.
- 🔌 Disconnection of the plume (image not transmitted).
For camera capture:
- Unscrew 2 screws of metal frame fastening.
- Carefully raise the frame - there is a plume under it.
- Disconnect the plume and remove the module.
The speaker in the Redmi Note 8 Pro is mounted on a single screw and latches, and a common problem is wheezing or no sound due to dust.
- 🎵 Remove the speaker by unscrewing the screw and slapping the latches.
- 🧹 Remove dust with a brush or compressed air.
- 🔊 Check the integrity of the membrane – if it is torn, the speaker must be replaced.
If the sound is gone after assembly, check:
- 🔌 Connecting the speaker plume to the motherboard.
- 🔧 Density of the contact attachment (sometimes helps a light press).
- 📱 Phone settings: Possibly the sound is software-disabled (Settings) → Sound).
Phone Assembly: How to Avoid Mistakes
The Redmi Note 8 Pro should be assembled in reverse order, but with a few critical points in mind:
- Check all the plumes - they should be tightly connected, without distortion.
- Make sure there are no extra screws - an "extra" screw inside the case can close the board.
- Warm up the glue before the final fixation of the cover (use a 60°C dryer).
- Check the operation of all buttons until the full assembly - after gluing the lid, it will be difficult to fix something.
After assembly, turn on the phone and check:
- 🔋 Charging (connect the charger).
- 📶 Network signal and Wi-Fi.
- 🔊 Sound in speakers and microphone.
- 📷 All cameras working.
- 📱 Sensor and buttons.
⚠️ Warning: If the phone doesn't turn on after assembly, don't panic. First check: Battery connection (sometimes the plume falls out during transportation), density of the power button (it may not be fully pressed). Short circuit (try to connect charging – if the phone is warming but not turning on, most likely the problem is in the board).
If everything works correctly, congratulations, you have successfully dismantled and assembled Xiaomi Redmi Note 8 Pro! If you have problems, double-check each step or contact the service center.