How to disassemble Xiaomi Mi True Wireless Earphones 2 Basic: detailed instructions with photos and tips

Xiaomi Mi True Wireless Earphones 2 Basic is a popular model TWS-But over time, even these devices require maintenance, like cleaning earwax, replacing the battery, or repairing the buttons, and disassembling the headphones is not an easy task. The manufacturer does not provide easy access to the insides, and improper actions can lead to damage to the microphone, speaker or control board.

In this article, you will find step-by-step instructions for disassembling photos of key steps, a list of necessary tools and unique tips for preventing the typical errors that cause 80% of headphones to break on the first attempt to open, and we will also discuss which parts can be replaced yourself, and in which cases it is better to contact the service center.

Preparation for disassembly: tools and precautions

Before you start disassembling, make sure you have everything you need. Xiaomi Mi True Wireless Earphones 2 Basic are assembled on glue and latches, so a regular screwdriver will not be enough. Here is the minimum set of tools:

• 🔧 Plastic mediator or opener (for careful undermining of the body)
• 🔨 Thin screwdriver with a flat sting (size 1.0-1.5 mm)
• 🧲 Magnetic substrate or tray (so as not to lose small details)
• 🔥 Hair dryer or thermo-air station (for softening glue)
• 🧴 Isopropyl alcohol (90%+) (clean-up)
• 📸 Smartphone with camera (to record the process of disassembly)

Important: Don’t use metal tools without insulation – they can close contacts on the board! If you don’t have experience with microelectronics, practice on old headphones or watch video disassemblies on YouTube (for example, Xiaomi Repair or TechInsights channels).

⚠️ Note: Disassembly of headphones Xiaomi Mi True Wireless Earphones 2 Basic cancels the manufacturer's warranty.If your headset is warranty, first contact the official service center Xiaomi.

Step 1: Removing the back cover of the headphone

The most important step is to separate the back cover from the body, and this is a combination of glue and plastic latches.

1. Place the headphone on a hard surface with the button down.
2. Heat the back cover with a hair dryer for 20-30 seconds (temperature) ~60°C. This will soften the glue.
3. Insert a plastic mediator into the gap between the lid and the case at the charging connector (the weakest point).
4. Rotate the mediator carefully to disengage the latches. Repeat the procedure around the perimeter.

If the lid doesn't lend itself, don't use force -- you better warm it up with a hair dryer again. A typical beginner's mistake is trying to plug the lid on the side where the Bluetooth antenna and microphone are located. This often leads to wires breaking!

Headphone's hot with a hairdryer |

Mediator inserted into charging connector |

No pressure on the side parts |

The cover is separated evenly along the perimeter.-->

Step 2: Disconnect the battery plume

When you remove the lid, you'll see a lithium battery (~55 mAh) soldered to the mainboard with a thin plume. Here's the rule: don't pull the wires! The plume is attached to the board with a ZIF (zero insertion force) connector, which opens by lifting a small black latch.

How to proceed:

1. Take a picture of the location of the plume and connector.
2. Put the latch of the connector with a thin screwdriver and carefully lift it.
3. Remove the plume with tweezers by holding on to the plastic part, not the wires.

⚠️ Attention: If you notice a bloating battery, don't continue disassembling! Bloated lithium batteries can ignite if punctured.

Step 3: Removing the control board

The Mi True Wireless Earphones 2 Basic control board is attached to the body on two Torx T3 screws and additional adhesive points.

1. Put the board on the side of the touch button with a plastic tool.

The boards are:

• 🎛️ Bluetooth module (Qualcomm chip) QCC3020)
• 🖲️ Touch Controller (responsible for touching)

💡

If the headphone doesn't turn on after disassembly, check the contacts of the battery on the board with a multimeter. Often the problem lies in oxidation or contamination of contacts that can be cleaned with isopropyl alcohol.

Step 4: Disassemble the speaker and microphone

The speaker and microphone in Mi True Wireless Earphones 2 Basic are integrated into a single module that is attached to the front of the body.

1. Remove the speaker's protective grid (it is glued, put it with a needle).
2. Unplug the two wires of the microphone from the board (if you are not sure about soldering skills, just disconnect the connector, if there is one).
3. Carefully remove the module, pulling it perpendicular to the body.

Note that the speaker membrane is extremely fragile. Don't touch it with your fingers or tools, even a little pressure can warp it, causing a distortion of the sound or a complete loss of bass.

Cleaning and replacement of components

If the purpose of disassembly is to clean the headphones, focus on the following areas:

• 🧹 Dynamic grid (accumulation of earwax)
• 🔌 Charging contacts (oxidation)
• 🎤 Microphone hole (dust and dirt)
• 🔋 Battery terminals (corrosion)

To replace components:

• 🔄 Battery: Choose an analogue with the same capacity and size (for example, 3.7V 55mAh). When soldering, use flux and low-power soldering iron (20–30W).
• 🔊 Original module for Mi True Wireless Earphones 2 Basic has an articular MDY-08-EM. Replacement can be found on AliExpress or in specialty stores.
• 📶 Antenna: when the wire of the antenna is broken, it is almost impossible to restore it - it is easier to replace the entire board.

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The most common cause of breakdown after disassembly is the wrong connection of the battery plume. Always check the polarity before soldering or connecting the connector!

Assembly of headphones: the reverse process

The assembly should take place in reverse order, but taking into account several nuances:

1. Before installing the cover, check that all plumes are connected and the latches of the ZIF connectors are closed.
2. Apply a thin layer of B-7000 glue to the edge of the lid for tightness (don’t overdo it – excess glue can get inside!).
3. Press the cover evenly around the perimeter for 1-2 minutes.
4. Check the work of the headphone until the final fixation: connect to the phone and test the sound, microphone and sensor.

If the headphone is not charged after assembly, check:

• 🔌 The charger's contacts on the board (are they not bent?).
• 🔋 Polarity of battery connection.
• 📱 Bluetooth settings on your phone (sometimes re-pairing is required).

FAQ: Frequent questions about disassembly