How to disassemble Xiaomi Redmi Note 8: a complete guide with photos and tips

Xiaomi Redmi Note 8 (codenamed ginkgo) remains a popular device even years after its release, and may need to be disassembled to replace the battery, repair the display, clean connectors or diagnose malfunctions. However, the design of the model has a number of features: adhesive fixation of the rear cover, fragile plumes and unusual screws. Without proper preparation, the risk of damage to the body or internal components is extremely high.

In this article, you will find a step-by-step guide with photos of key steps, a list of necessary tools and unique tips from service center masters, we will also analyze typical beginner mistakes (for example, why you can not start disassembling with a battery disconnection) and give recommendations for maintaining leakproofness after assembly. If you plan to disassemble the Redmi Note 8 for the first time, this guide will help avoid 90% of common problems.

⚠️ Warning: Disassembling your smartphone will void the warranty (if it is still valid) and can cause permanent damage to the board if you mishandle the power plumes. If you are unsure of your skills, contact the service center.

Before starting work, be sure to discharge the battery to 25-30% (but not lower!). A fully charged battery can ignite if it accidentally punctures or closes. Also prepare the workplace: it should be clean, well-lit and without static electricity (ideal is to use an antistatic mat).

1. Necessary tools and materials

To disassemble the Xiaomi Redmi Note 8, you need a specialized set of tools. Using improvised tools (knives, screwdrivers of the wrong size) is almost guaranteed to result in scratches on the body or the failure of the screws.

• 🔧 Plastic blades (2-3 - to separate the back cover. Metal mediators can scratch the body.
• 🔩 The screwdriver. PH00 (magnetic) - for the screws of the back cover. PH0 won't fit!
• 🔋 Suction cup (∅40-50 mm) - helps to lift the cover after heating.
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature) 60-70°C).
• 🧲 Magnetic mat or screw container – to avoid losing small details.
• 🧴 Isopropyl alcohol (90%+) — cleaner.
• 🔌 Tweezers with curved ends - for working with plumes.

You may need some glue, too. B-7000 Or double-sided tape for post-assembly sealing, so if you're planning to replace your battery, buy the original battery with the capacity in advance. 4000 mAh (article) MB11> For the Redmi Note 8). Counterfeiting often has a smaller capacity and can swell through 2-3 month.

⚠️ Warning: Do not use superglue or instant glue to fix the back cover! they damage the plastic and make the next disassembly impossible without destroying the body.

2. Preparation for disassembly: important nuances

Before you start disassembling, follow a few critical steps:

1. Turn off your smartphone and remove it. SIM-card with a memory card (if installed).
2. Back up your data via Settings → About Phone → Backup. Disassembly can result in a reset.
3. Check the leaks: if the phone falls into the water, condensate may accumulate inside, in this case, dry it in rice for 24-48 hours before disassembling.
4. Heat the body with a hair dryer around the perimeter for 2-3 minutes (keep it 10-15 cm!) The glue becomes elastic at ~60°C.

Pay special attention to plug screws. The Redmi Note 8 has two of them, hidden under rubber plugs near the USB-C connector and speaker, and if you don't unscrew them, the lid won't split evenly, and you risk tearing the fingerprint scanner plume.

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In order not to confuse the screws during assembly, take a picture of their location on a magnetic mat or spread out in order from left to right.

Removal of the back cover: step-by-step instructions

This is the most critical step. If you act in a negligent manner, you can damage the fingerprint scanner plume (it goes from the power button to the motherboard) or the antenna contacts under the lid.

Step 1. After heating with a hair dryer, apply the suction cup to the top of the back cover (above the camera). Carefully pull up - a gap of 1-2 mm should appear.

Step 2. Put a plastic blade in the gap and slowly lead it along the body, separating the glue. Don't try to rip the lid off abruptly, so you'll tear the antenna tracks!

Step 3. When the lid is 2/3 apart, notice the fingerprint scanner plume (the thin black cable at the power button) and it needs to be carefully unplugged with tweezers, pulling on the white plastic latch, not the plume itself!

Removed. SIM-card|The screws under the plugs are twisted.|The hull will warm up with a hairdryer|Suction cup is fixed at the top-->

⚠️ Warning: If the lid doesn't lend itself, don't increase the force! You probably missed the screw or didn't warm up enough. 1-2 minute.

4. Battery recovery: safety measures

The battery in the Redmi Note 8 is glued to the body with double-sided tape, and its power plume is connected to the motherboard via the JST 1.0 connector. Never disconnect the battery first - turn off the power plume first! Otherwise, a short circuit can disable the charging controller.

Procedure:

1. Unplug the protective film from the battery (if any).
2. Tweez the black power connector on the motherboard with a tweezer and gently disconnect it.
3. Heat the battery with a hair dryer (temperature 50-60 ° C) - this will soften the glue.
4. Pick up the battery with a plastic spatula on the side and slowly pull up. If it resists, warm up again.

⚠️ Warning: If the battery is swelling (as seen from the bulge of the lid), don't try to remove it yourself! The risk of fire if the bloated battery is punctured is extremely high.

5. Dismantling of motherboard and other components

Once the battery is removed, you can start disassembling the internal components. In the Redmi Note 8, the motherboard is mounted on 8 screws (of different lengths!) and one metal screen, which also acts as a heat sink. It is important to remember the location of each screw - when assembled, their entanglement can lead to damage to the board.

Deconstruction procedure:

1. Unscrew all the screws of the board (marked in the photo below with red circles).
2. Disconnect the plumes: 📱 Display (the widest, at the bottom of the board) 🔊 Dynamics and microphone (thin white, right) 📷 Main camera (black, top)

Carefully tuck the board with a plastic spatula on the side and lift it. Don't pull the connectors!

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The screws on the Redmi Note 8 motherboard are different lengths. The shortest (2 mm) attach the screen, the longest (4 mm) attach the board to the case. If you confuse them, you risk damaging the circuit board tracing when you tighten.

After the charge is retrieved, you will have access to:

• 🎤 Microphone (under metal screen)
• 📡 Antenna modules (on the sides of the body)
• 🔊 Vibration engine (bottom, under the adhesive pad)

6.Typical problems and how to avoid them

Even experienced craftsmen have trouble disassembling the Redmi Note 8, and here are the most common mistakes and ways to prevent them:

Problem 1: Broken screws

The screws in the Redmi Note 8 are made of soft metal and easily break off with the wrong tool.

• Try a rubber band - stick it on the screw head and twist a screwdriver through it.
• Use an extractor for screws (sold in tool stores).
• In extreme cases, drill the screw with a drill with a thin drill (0.8 mm).

Problem 2: Damaged display plume

The screen plume is fragile and breaks when it is not neatly disconnected.

• Always lift the black latch of the connector before removing the plume.
• Do not pull the plume itself - take only the plastic base.
• If the plume is broken, it can be replaced (article 1601-00028-00 for Redmi Note 8).

Problem 3: The fingerprint scanner is not working after assembly

This is most often due to:

• Unconnected plume (check the connector on the board).
• Damaged contact (check the plume for the breaks).
• Contamination of the connector (wipe with alcohol).

7. Assembly and performance check

The Redmi Note 8 is assembled in reverse order, but with a few nuances in mind:

• 🔧 Screw tighten the cross to avoid skewing the fee.
• 🧴 Apply a thin layer of glue B-7000 at the edges of the back cover for tightness.
• 🔋 Connect the battery last when all the plumes are already in place.

After assembly, be sure to check:

1. The fingerprint scanner is operational.
2. Network reception quality (if antennas are damaged, the signal will be weak).
3. Charging and discharging the battery (should go without overheating).
4. Camera and speakers (sometimes the plumes sit loosely).

(1) Whether the battery is connected to the socket on the board.

(2) Are the contacts closed (check the charge for foreign screws or debris).

3) Whether the power button is installed correctly (sometimes it blocks the switching on).-->

FAQ: Frequent questions about the dismantling of the Redmi Note 8