How to disassemble Xiaomi wireless headphones: detailed instructions with photos and tips

Xiaomi’s wireless headphones are some of the most popular gadgets on the market due to the price-performance ratio. However, over time, even the most reliable models (Redmi Buds 4 Pro, Mi True Wireless Earphones 3, Xiaomi Buds 4) can fail: the microphone stops working, the sound disappears in one earphone or the speaker begins to “crack”; in most cases, the problem is solved by cleaning contacts or replacing the battery, but you need to carefully disassemble the case without damaging fragile parts.

In this article, you will find step-by-step disassembly instructions for different Xiaomi headphone models, including photos and video examples, a list of necessary tools, as well as typical errors that lead to a breakdown of the gadget. We will tell you how to open the case without traces, where the screws are located (including hidden ones), and how to not damage the plumes during disassembly. If you have never repaired electronics before, do not worry: even a beginner can cope with our tips in 20-30 minutes.

Preparation for disassembly: tools and security measures

Before you start disassembling, make sure you have everything you need. Lack of the right tools is the main cause of damage to the body or internal components. For example, trying to open headphones with a knife or screwdriver of the wrong size often ends up with chipped plastic or broken plumes.

Here is the minimum set that most Xiaomi models will need:

• 🔧 Plastic mediators or shoulder blades (to separate the body without scratches).
• 🔨 A set of screwdrivers with tips PH00, Y00, T2 (different-model screw).
• 🧲 Magnetic mat or container (to avoid losing small details).
• 🔥 Dryer or thermo-air station (for models with adhesive connection, for example, Redmi Buds 3 Pro).
• 📸 Loupe or macro lens (to inspect small contacts).
• 🧴 Isopropyl alcohol (90%+) Cotton swabs (for cleaning contacts).

Also prepare your workspace: a table with good lighting, no carpeting (so as not to lose screws), and an antistatic bracelet (if any). Some Xiaomi models (such as Buds 4) have thin flexible plumes that are easily damaged by static electricity. If the bracelet is not, periodically touch a grounded metal object (such as a heating battery).

⚠️ Warning: Do not disassemble headphones if they are wet or wet - this can cause a short circuit. If the gadget is in the rain, dry it in rice or silica gel for at least 24 hours before disassembling.

How to determine the model of headphones and find the disassembly scheme

Before disassembling, specify the exact model of your headphones. This is important, because the design of the cases in Xiaomi is very different. For example, the Redmi Buds 4 Pro have adhesive connection and hidden latches, and Mi True Wireless Earphones 2 are screws under rubber plugs. If you confuse the method of disassembly, you can break the body.

You can find a model.

• 📦 On the box (usually indicated on a barcode sticker).
• 🔍 Bluetooth settings on your phone (sometimes the full name is displayed).
• 🔎 By external signs: shape of the body, location of buttons, color of indicators (see table below).

Once you've identified the model, find the disassembly diagram.

• 📺 YouTube (search for "[model] disassembly" or "disassembly [model]»).
• 🌍 Forums (4PDA, XDA-Developers, Mi Community).
• 📖 Service manuals (sometimes posted in telegram channels for repairs).

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If you can't find a circuit for your model, look at the disassembly of a similar design. For example, Redmi Buds 4 will fit the instruction for Redmi Buds 3 Pro — they have a similar mounting body.

Step-by-step disassembly of Xiaomi headphones (universal instructions)

Below is a general guideline that is suitable for most models, but always check the schematic for your particular version - the screws and latches may differ.

Step 1: Removal of the battery (if required)

If you're disassembling headphones to replace your battery, first discharge it to 0%, which will reduce the risk of fire if you accidentally circuit.

1. Carefully tuck the rubber cap on the back of the case (if any) with a plastic spatula.
2. Under the plug you will find 1-2 screws - twist them.
3. If there are no screws, the body is glued - use a hair dryer (heat the edge of the body to 60-70).°C to soften the glue).

Step 2. Separation of the hull

After removing the screws (or heating the glue), insert a plastic mediator into the gap between the halves of the body and carefully guide them around the perimeter, disconnecting the latches. Do not apply force - if the body does not respond, check if all screws are twisted.

All screws are twisted.|The body is heated (for glue models)|The mediator is inserted into the gap at an angle of 15-20°|No extraneous sounds (crunch, creaking)-->

Step 3: Disconnection of plumes and boards

After opening the building, you will see:

• 🔋 Battery (usually glued to the body).
• 🎛️ Board with speaker and microphone (can be fixed screws or glue).
• 🔌 Trains (thin tapes connecting buttons/sensors to the board).

Before you disconnect anything, take a picture of the location of the parts, which will help with the assembly. The plumes are disconnected only with a plastic blade, putting them on the side, not up!

⚠️ Note: In models with active noise reduction (ANC) There might be an extra microphone inside the case to analyze external noise, which is easily damaged by careless disassembly, soldered to the board with thin wires.

Disassembly of specific models: features and nuances

Each Xiaomi model has unique design features, and below are the key differences for the popular headphones.

Redmi Buds 4 Pro

This model is characterized by adhesive joint and a fragile plastic frame.

• 🔥 Heat the body with a hair dryer around the perimeter for 1-2 minutes (temperature 60-70)°C).
• 🛠️ Use two blades simultaneously from opposite sides to evenly separate the latches.
• 🔋 Battery glued to body - put it with a thin plastic card, not a metal tool.

Mi True Wireless Earphones 3

The main difficulty here is the screws under rubber plugs.

• 🕳️ Put the plugs on the back of the case (they look like small circles).
• 🔩 There are screws underneath. T2 — Use the appropriate screwdriver.
• 🎧 The speaker is fixed on the board without soldered joints - it can be carefully removed after disconnecting the plume.

Xiaomi Buds 4

In this model, combined fastening: 2 screws + Glue, features:

• 🔩 The screws are hidden under decorative stickers (they need to be carefully peeled off).
• 🔥 After twisting the screws, the body will still have to be heated - it is additionally glued along the contour.
• 🛡️ The board is covered with protective varnish - do not rub it with alcohol too actively so as not to erase the marking.

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In touch-controlled models like the Redmi Buds 4 Pro, the sensor board is glued to the top of the case. Don't try to tear it off, heat it to 50 first.°C and gently tuck it in at the edge.

Cleaning contacts and replacing the battery

The most common causes of Xiaomi headphone malfunctions are contact oxidation and battery wear. Let's look at how to fix both problems.

Contact cleanup:

1. Wet the cotton swab in isopropyl alcohol (90%+).
2. Gently wipe all metal contacts on the board and battery (especially if they are green or darkened).
3. Let dry for 10-15 minutes before assembly.

Battery replacement:

• 🔋 Buy a similar battery (model number is usually written in the old one).
• 📏 Check the dimensions – the new battery must fit exactly into the nest.
• 🔌 So, put the rods on the back or put them on the back).
• 💧 Secure the battery on bilateral scotch or glue B-7000.

⚠️ Note: Xiaomi headphones often use thermistor batteries (overheat protection).If the new battery doesn't have a thermistor, the headphones may not turn on.

After replacing the battery, be sure to check its operation:

• 🔋 Charge your headphones to 100%.
• 🎧 Test the sound and microphone.
• ⏱️ Check the operating time – if it is much less than stated, there may be a problem with the charge controller.

Common Mistakes in Disassembly and How to Avoid Them

Even experienced craftsmen sometimes make mistakes that lead to permanent breakage of the headphones.

Another common problem is losing screws or springs when disassembling.

• 🧲 Use a magnetic mat or divide the parts into containers.
• 📸 Take photos of each stage of the disassembly.
• 🔍 Check the floor under the table after work – small details are easily lost.

If the headphones stopped working after assembly:

1. Check if all the sleeves are connected correctly.
2. Make sure the battery is plugged in (sometimes the connector goes away).
3. Call the contacts of the speaker with a multimeter (resistance should be 16-32 ohms).

Assembly of headphones after repair: tips and check

Assembly is as important as disassembly.

• ✅ Place all the details correctly (use photos taken before disassembly).
• ✅ Do not pull the screws - this can lead to cracks in the body.
• ✅ Check operation at each stage (e.g. after battery connection).

Assembly order:

1. Put the cables and wires so that they do not overturn.
2. Set the charge and speaker (if they have been removed).
3. Connect the battery and check the charging indicator.
4. Close the body, starting on one side, and alternately snap the mounts.
5. Then, put the slacks on and put them in the back.

After assembly, be sure to test:

• 🎵 The sound in both earphones (is there any distortion).
• 🎤 Microphone (record voice and check for noise).
• 🔋 Charging (earphones must be charged and display battery level).
• 🔘 Buttons/sensors (do all commands work).

⚠️ Warning: If one of the headphones is not synchronized with the other after assembly, reset them to factory settings. To do this, hold the button on the case of the charging case for 10-15 seconds (until the indicator flashes).

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If the headphones are not working properly after repair (e.g., they shut down after 5 minutes), check the quality of the battery contacts. Often the problem lies in the bad fit of the springs or oxidation of the connectors.

FAQ: Frequent questions about the dismantling of headphones Xiaomi