How to disassemble Xiaomi Redmi 8 Pro: detailed instructions with photos and tips

Xiaomi Redmi 8 Pro is a popular smartphone with good hardware, but even it is not immune to breakdowns. The screen does not respond to touch, the battery is swollen, or the speaker began to wheez? In most cases, repairs are cheaper if you do it yourself. However, the dismantling of the Redmi 8 Pro has its own nuances: a fragile battery plume, adhesive back cover and the risk of damage to flexible cables.

In this article, you will find a step-by-step photo guide, a list of tools you need, and unique tips for undamaged disassembly — such as how to heat the lid properly so as not to damage the fingerprint scanner. We will also tell you what mistakes beginners most often make and how to avoid them. If you have never taken apart smartphones before, start by reading the Preparation section — this will save you time and nerves.

Preparation for disassembly: tools and security measures

Before you start a screwdriver, make sure you have everything you need. Redmi 8 Pro is not a "friendly" self-repair device: its body is glued together, and many elements are connected by fragile plumes. One wrong step - and you risk additional problems.

Here is the minimum set of tools you can’t do without:

• 🔧 Plastic mediators (2-3 pieces) - for careful liding.
• 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
• ⚙️ Screwdriver kit: cross-haired (PH00) and five-pointed (for screws under the back cover).
• 🧲 Magnetic mat or container – to avoid losing small details.
• 📱 Suction - will help to raise the screen (if you need to replace it).

Also, prepare your workspace: the desk should be clean, well-lit and draft-free (dust can get inside the case). If you disassemble your phone from a bloated battery, work with gloves and safety glasses - lithium-ion batteries can ignite if damaged.

⚠️ Warning: Don't use metal tools to lid! Even a small scratch on the Redmi 8 Pro's aluminum body can be a hotbed of corrosion.

Step 1: Removing the back cover – how not to damage the fingerprint scanner

The Redmi 8 Pro's back cover is glued around the perimeter, and the center is further secured by screws, and the main difficulty is the fingerprint scanner, which is connected to the motherboard in a thin plume, and if you pull the lid too sharply, the plume can come off.

Algorithm of action:

1. Turn off the phone and remove it. SIM-map.
2. Heat the edge of the lid with a hair dryer (do not direct the airflow to the camera or scanner!).
3. Insert a plastic mediator into the gap between the lid and the case at the USB-Type C connector.
4. Carefully drive the mediator around the perimeter, gradually lifting the cover.

If the lid doesn't lend itself, don't force it, you better warm up the problem area again. As soon as you hear the characteristic "click" (this is the latches that have disconnected), remove the lid and put it aside.

Step 2: Battery Disconnection – Why It Should Be Done First

Before any manipulation of the insides of the smartphone, be sure to turn off the battery. This will prevent short circuits if you accidentally touch the motherboard with a tool. In the Redmi 8 Pro, the battery is glued, but its power plume easily detachs.

Instructions:

1. Find a black plume with a connector on the battery (usually signed by BAT).
2. Put a plastic pickup or tweezers on the connector.
3. Carefully pull the plume up - it should come out of the nest.

If the battery is swelling, don't try to pull it out by force, it's dangerous. You better go to the service center. Bloated batteries can explode when you mechanically impact them.

⚠️ Warning: After the battery is turned off, the phone may turn on spontaneously when connected to a charge. This is normal - just hold the power button clamped for 10-15 seconds for the capacitors to fully discharge.

Step 3: Removing the motherboard – where the “traps” are hidden

The Redmi 8 Pro motherboard is mounted on multiple screws and connected to the body by a number of plumes.

• 🔌 Camera plumes and speaker – they are easy to break if you pull the board up.
• 📶 Antenna cables - glued to the board, with careless movement can come off.
• 🔋 Charging contacts – if you bend them, the phone will stop charging.

Procedure:

1. Unscrew all the screws that fix the board (see their location in the photo below).
2. Carefully raise the fee with a plastic mediator, starting at the top edge.
3. Disconnect all the plumes in turn, remembering their location (better take a picture!).

If you disassemble the phone to replace the charging connector or microphone, the board can not be removed completely - just raise it by 1-2 cm.

Step 4: Replacing the screen – why it’s harder than it sounds

The Redmi 8 Pro screen is glued around the perimeter and its plume runs under the battery. If you've never changed your displays before, you'd better practice on an old phone or watch the video manuals specialized for this model - universal guides often miss the nuances.

Key points:

• 🔥 Heat the screen with a hair dryer (temperature 70–80)°C) for 2-3 minutes.
• 🧲 Use a suction cup to lift the display (start at the bottom edge).
• ⚠️ Don’t pull the screen too hard – the approximation sensor plume passes under it.
• 🛠️ After replacement, check the sensor and camera (sometimes the plumes are rubbed over).

If the screen flickers or does not respond to touch after replacement, check:

1. The density of the plume adjacent to the connector on the board.
2. Integrity of contacts (sometimes they are oxidized).
3. Sensor settings are in the engineering menu (#3644633###).

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Before installing the new screen, clean the body frame of the residue of the old glue with isopropyl alcohol. This will improve the tightness and prevent dust from entering.

Step 5: Back-Building – How to Avoid Surprises

It is often harder to assemble a phone than to disassemble, and the main problem is the unnecessary parts (screws, gaskets) that are forgotten to be put back in, resulting in extraneous sounds, poor antenna contact, or overheating.

Assembly tips:

• 🔍 Check all the connectors on the board - they should be clean and dry.
• 🔧 Twisting the screws cross-cross to avoid skewing the fee.
• 📱 Before final assembly, turn on the phone (without the cover) and check the operation of all modules.
• 🔋 If the battery is new, charge it up to 50% before the first assembly.

After assembly, be sure to check:

• Fingerprint sensor operation.
• Network reception quality (if the antennas are not connected correctly, the signal will be weak).
• Charging (plug the cable and make sure the phone detects it).

⚠️ Warning: If the phone doesn't turn on after assembly, don't panic. Turn off the battery for 1 minute, then plug it back in and try turning the device on. 80 percent of the time, it helps.

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The most common build error is the wrong connection of the screen plume, and if the image is missing after turning on, but the phone vibrates when it touches, the problem is that.

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Redmi 8 Pro. TOP-5 Problems and ways to prevent them:

1. Damage to the fingerprint scanner plume → Always disconnect it first and check the integrity after the cover is removed.
2. Overheating boards at soldering → Use a thermo-air station with a temperature not higher than 300 ° C and flux without acid.
3. Loosen screws → Spread them in order on a magnetic mat or photograph the location.
4. Getting dust under the screen → Work in a clean room and use an antistatic bracelet.
5. Incorrect battery installation → Bloated battery can not be installed back – only for replacement!

If you're in doubt, don't take the risk. The cost of repairing a service center is often lower than the cost of new parts in a failed self-disassembly.

FAQ: Answers to Frequent Questions