How to disassemble Xiaomi Redmi Note 6 Pro yourself: instructions with photos and tips

Why to Disassemble Redmi Note 6 Pro and What to Know Before You Start

Disassembly of the Xiaomi Redmi Note 6 Pro smartphone can be necessary for a variety of reasons, from replacing a broken screen or a dead battery to cleaning connectors or diagnosing malfunctions. However, this process requires accuracy and preparation – the model, released in 2018, has a specific design with adhesive rear cover mounting and fragile plumes.

Before you start, evaluate your skills: if you've never disassembled a smartphone, you'd better go to a service center. Incorrect disassembly can cause damage to the display plume, disconnect antenna contacts, or even short circuit on the motherboard. In this article, we'll take a look at each step from tool preparation to reassembly, and point out the critical moments that often miss newcomers.

Note that the warranty on the device is canceled when you open the case yourself. If your Redmi Note 6 Pro is still under warranty, first check the terms in the official Xiaomi service.

Tools required: what will be needed for disassembly

To safely disassemble the Redmi Note 6 Pro, you will need a specialized set of tools. Using the wrong devices (for example, a knife instead of a mediator) is almost guaranteed to damage the case or plumes.

• 🔧 Plastic mediator or suction cup – to separate the back cover (metal tools scratch the body).
• 🔨 The screwdriver. PH00 — for the screws of the motherboard attachment (normal) PH0 too big!).
• 🧲 Magnetic mat or organizer – so as not to lose small screws and details.
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature not higher than 60)°C!).
• 📱 Plastic blade - for careful tweaking of plumes and connectors.
• 🔋 Multimeter – to check the battery voltage (optional, but recommended).

If you are planning to replace the battery, buy glue in advance. B-7000 Or double-sided tape to fix the new element, and you'll need a special glue to replace the display. OCA-Films (if you use the original module).

Preparing the phone: important steps before disassembly

Before disassembling the Redmi Note 6 Pro, there are several critical steps that need to be taken, and neglecting them can cause data loss, component damage, or even battery fire.

Turn off the phone and remove it. SIM-memory-card

Charge the battery to 30-50% (full discharge or 100% charge dangerous!)

Backup your data (via Mi Cloud or computer)

Remove the cover and protective film (if any)

Prepare the workplace: clean desk, good lighting, antistatic mat-->

Pay special attention to the battery. If it swells (visible from the raised back cover or the characteristic "slapping" sound when pressed), it is better to trust the dismantling to professionals. A bloated battery can spontaneously ignite when mechanically exposed. It is also not recommended to disassemble the phone if it has recently fallen into water - corrosion on the board may not be visible immediately, but will lead to a short circuit when turned on.

⚠️ Warning: If the phone doesn't turn on after a fall, check the power supply chain with a multimeter first.A short circuit on the board can disable a new battery when it's connected the first time.

Step-by-step: how to remove the back cover

The Redmi Note 6 Pro's back cover is glued around the perimeter, so it will require a thermo-air station or a hair dryer to remove it, and heating the adhesive makes it elastic and reduces the risk of damage to the body.

1. Heat the edges of the back cover with a hair dryer (50-60°C) for 2-3 minutes. Keep the hair dryer at a distance of 10-15 cm so as not to overheat the plastic.
2. Place the suction cup to the bottom of the phone (near the USB-C connector) and pull up. If the lid doesn't lend itself, repeat heating.
3. Insert a plastic mediator into the gap and gently swipe it around the perimeter, separating the glue. Don't use metal tools, they'll scratch the anodic coating.
4. Be especially careful in the area of the fingerprint scanner plume (top of the lid), which is easily damaged by excessive force.

When you take the lid off, you'll see the battery, the motherboard, and some plumes. Don't pull the lid abruptly, it's connected to the body by a thin antenna plume (upper left) and carefully disconnect it with a plastic blade.

Removal of the battery: safety and nuances

The battery in the Redmi Note 6 Pro is glued to the body, and its removal is one of the most critical steps.

First, disconnect the battery connector from the motherboard with a plastic blade.

1. Stick a strip of scotch on the battery (this will help to pull it out later).
2. Carefully tuck the battery from any angle with a plastic spatula and pull the scotch. If it does not lend itself, heat the body with a hairdryer (maximum 60°C).
3. Do not use metal tools or press on the center of the battery – this can penetrate its shell.

If the battery is swelling, don't try to remove it yourself. Contact a service that has special equipment for safe disposal. It is also not recommended to puncture or bend the battery - this can cause a chemical reaction with the release of toxic gases.

⚠️ Warning: If you smell a strong chemical smell or smoke while removing the battery, stop working immediately, take the phone out to the open air and do not turn it on for several hours.

Disassembly of the motherboard and periphery

Once the battery is removed, you can start dismantling the motherboard. In the Redmi Note 6 Pro, it is mounted on 12 screws of different lengths, so remember or photograph their location - when assembled, the screws can damage the board.

Procedure:

1. Unscrew all the screws (use the PH00 screwdriver). The screws under metal stickers (e.g. near the USB-C connector) are often forgotten - don't miss them!
2. Carefully unplug all the plumes: 📱 Display plume (at the top of the board, fixed with a latch). 🔊 Dynamics and microphone plume (bottom part). 📶 Trains of antennas (on the sides, glued to the cover).

You can put a plastic blade on the board, and you can lift it gently, and it can stick to the heat paste on the processor -- don't pull it so fast.

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

• 🔧 The stainless stains are often stained when the stain is removed).
• 🎤 Microphone and speaker (can be clogged with dust).
• 📡 Antenna modules (damaged by falls).

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If you are disassembling your phone due to charging problems, check the integrity first. USB-Often, its contacts oxidize or bend. Use alcohol and a soft brush to clean, and a wooden toothpick to align the contacts.

Phone Assembly: How to Avoid Mistakes

Assembling the Redmi Note 6 Pro after disassembly requires no less care than dismantling.

• 🔄 Check all the plumes for damage before connecting. If the plume is broken, it must be replaced, otherwise the screen or camera will not work.
• 🔩 Twisting the screws cross-cross to avoid board skewing. Start with corner screws.
• 🔋 The new battery should be of the same capacity (4000 mAh) and support fast charging (Qualcomm Quick Charge 3.0).
• 🧴 Apply a new glue to the back cover (for example, B-7000) Old glue loses its properties after removal.

Don't turn on the phone right away.

1. Check the multimeter voltage on the battery (should be 3.7-4.2 V).
2. Make sure all the plumes are tightly connected (no backlashes).
3. Close the back cover and slightly press it for better gluing.

If the phone does not turn on after assembly:

• Check the battery connection (often the connector leaves during transportation).
• Make sure the power button doesn’t go off (may interfere with assembly).
• Connect to charging – sometimes the phone only turns on after recharging (if the battery is completely discharged).

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The most common mistake in assembly is screws that are tangled, screws of different lengths: short ones come under a board, long ones under a metal screen, and if you twist a long screw into a board, it punches right through it, causing a short circuit.

Frequent problems after disassembly and how to fix them

Even with a careful disassembly of the Redmi Note 6 Pro, there may be malfunctions.

If the phone overheats after disassembly, the thermal interface on the processor is likely to have been damaged.

1. Take the phone apart again.
2. Clean the remains of the old thermopaste with alcohol.
3. Apply a new thermopaste (such as Arctic MX-4) with a thin layer.

If problems persist, the motherboard may have been damaged during the dismantling, in which case a diagnostic at the service center using a soldering station and a microscope will be required.

FAQ: Answers to Frequent Questions