Disassembly Xiaomi Mi 6: detailed instructions with photos and nuances

Xiaomi Mi 6 is the legendary flagship of 2017, which is still popular thanks to the powerful hardware (Snapdragon 835 processor, 6 GB of RAM) and balanced price in the secondary market. However, over time, even such a reliable device can require repairs, from replacing the battery to cleaning the connectors or recovering from a fall. Disassembly Mi 6 has its own features – there is no removable back cover, and the body is sealed, which complicates the process.

In this article, you will find step-by-step instructions for disassembling photos, a list of necessary tools and unique tips for working with fragile elements (for example, how to avoid damaging the fingerprint scanner plume), we will also talk about the typical errors that lead to a break in the display or motherboard, and give recommendations for safe handling of components. If you have never taken out smartphones, this guide will help to avoid costly errors.

Preparation for disassembly: tools and security measures

Before you start, make sure you have everything you need. Disassembly Xiaomi Mi 6 requires precision: the body is not on the latches, but is glued around the perimeter, so you can not do without specialized tools.

• 🔧 Plastic mediators or shoulder blades (thickness 0.2–0.4 mm) – for separation of the cover without scratches.
• 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
• 🧲 Magnetic screwdriver. T3 and T5 — motherboard-mounting screw.
• 📦 Suction cups (2 pcs) - help to evenly raise the cover after heating.
• 🛠️ Tweezers and antistatic bracelet – for working with small details and protection from static electricity.

Important: don't use metal blades - they leave scratches on the aluminum body, also prepare screw containers (they are easy to confuse when assembled) and isopropyl alcohol 90% for cleaning contacts.

⚠️ Warning: If the phone's battery is swelling, it's best to leave the disassembly to the service center!

Step 1: Shutting off power and removing the back cover

The first stage is the most important. Xiaomi Mi 6 does not have a removable battery, so before disassembling it must be completely turned off and wait for cooling (if the phone was under load).

1. Heat the hair dryer back cover around the perimeter for 2-3 minutes, holding the device at a distance of 5-7 cm The glue will become softer, and the cover will separate easier.
2. Stick the suction cups to the bottom and top of the body (avoid the camera area!). Carefully pull up - a gap should appear.
3. Put a plastic mediator in the gap and slowly move it along the body, separating the lid. Do not force it — if the glue does not respond, heat the problem area again.

When you take the lid off, you'll see the battery, the motherboard and the plumes. Don't pull the lid out, it's got a fingerprint scanner plume glued to it, which is easy to tear!

Heat the body with a hairdryer (60–80°C)

Attach the suction cups to the upper and lower parts

Separate the cover with a plastic mediator, starting at the bottom edge

Check the integrity of the fingerprint scanner plume-->

Step 2: Disconnect the battery and plumes

Before further disassembly, be sure to turn off the battery, otherwise you risk closing the fee.

1. Carefully tuck the battery plume into a plastic spatula and unplug it from the connector on the motherboard. Use tweezers if your fingers are uncomfortable.
2. Unscrew the 4 screws (T3) that fix the metal plate over the battery and remove it.
3. Disconnect the display plumes, cameras and power buttons (they are marked on the board as LCD_CONN, CAM_CONN and PWR_KEY).

Tip: Take a picture of the plumes before disconnecting - this will make it easier to reverse assemble.The fingerprint scanner plume is particularly fragile, so don't rot it.

⚠️ Warning: If the phone switches on spontaneously after the battery is disconnected, this is a sign of circuit circuitry on the board. Disconnect it immediately and check the contacts for moisture or oxidation.

Step 3: Removing the motherboard

The Mi 6 motherboard is mounted on 12 screws (T5) and a few latches to extract it.

1. Unscrew all the screws, starting with the corners (they can be of different lengths - remember their location!).
2. Carefully tuck the board with a plastic spatula on the side of the USB-C connector. Don't pull by the edges - there are antenna contacts.
3. Disconnect the vibration motor plume (located next to the SIM-tray).

The board in the Mi 6 is dual-layer, so when you extract it, don't force the top part -- there are memory chips. If the board is stuck, check if there are any unscrewed screws left.

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Before removing the board, check it for bloated capacitors (especially near the processor). If you have them, the phone requires professional repair, not self-disassembly.

Step 4: Replace the battery (Step-by-step)

The battery in Xiaomi Mi 6 is one of the most vulnerable places, its capacity (3350 mAh) degrades over time, and after 2-3 years the phone can turn off at 30-40% charge.

1. Tap the battery with a plastic blade from the bottom edge (there are no board components).
2. If the battery is glued heavily, use isopropyl alcohol - drop a few drops under the battery to dissolve the glue.
3. Install a new battery (such as the original Xiaomi BAT435) and lock it in double-sided tape.

Important: Do not use metal tools to tamper with the battery, this can break through the battery body and cause fire, and check the new battery with a multimeter before installation (voltage should be 3.7-4.2 V).

Common Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Mi 6.

• 🔋 The fingerprint scanner plume is damaged when the back cover is abruptly removed. Solution: heat the case longer (3-4 minutes) and use two suction cups.
• 🔌 The circuit board is closed if you don't disconnect the battery before work. Solution: always check with a multimeter that the contacts are not voltage free.
• 📱 Cracks on the display due to the pressure on the screen when removing the board. Solution: put the phone on a soft surface (for example, a silicone mat).
• 🔧 Loss of screws: Mi 6 has 16 of them of different lengths. Solution: use a magnetic organizer or a tagged tape.

If the phone does not turn on after assembly, check:

• Correct connection of the display plume (a common cause of black screen).
• Battery contacts - they should fit tightly to the connector.
• Power button - its plume could have moved away during assembly.

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The most common breakdown in the Mi 6 is a broken fingerprint scanner plume, which costs 30 to 50 percent of the cost of the phone, so work carefully!

Building a phone: reverse order and testing

To assemble Xiaomi Mi 6 need in reverse order, but taking into account a few nuances:

1. Before installing the cover, clean its inner surface of old glue (use isopropyl alcohol).
2. Apply a new adhesive (e.g., B-7000) with a thin layer around the body perimeter. Avoid the speaker and microphone area!
3. Press the lid evenly, starting from the center to avoid air bubbles.
4. After assembly, check all the functions: camera, fingerprint scanner, vibration, charging.

If the phone overheats or discharges quickly after assembly, the probable causes are:

• Poor battery contact - check the plume fixation.
• Getting dust on the processor radiator - clean it with compressed air.
• Installation of heat conductive paste (if you have replaced it)

FAQ: Frequent questions about the dismantling of Xiaomi Mi 6