Disassembly of wireless headphones Xiaomi Wireless: detailed instructions with photos and secrets of the masters

Xiaomi wireless headphones are some of the most popular gadgets due to the price-quality ratio, but even they are not immune to breakdowns. Most often, users face problems with no sound in one earphone, poor contact of the charging case or contamination of the speakers. In such cases, disassembling the device can save the situation, but it is important to do it correctly so as not to damage fragile internal components.

This article will be suitable for owners of most Xiaomi Wireless models, including AirDots (Pro, S, Youth), Buds and other models. 3/4, FlipBuds and others. We're going to go from tool preparation to assembly, point out common rookie errors, and give you diagnostic tips for malfunctions. If you've never done electronics, don't worry, with our manual, even a beginner can do it.

Warning: the warranty on the device burns up when any opening of the case, so disassemble the headphones only if they are no longer warranty or you are willing to risk. In some cases (for example, when moisture hits), disassembly may be the only way to save the gadget.

Training: tools and materials

Before you start disassembling, make sure you have everything you need, the wrong tool is the main cause of damage to the casings and plumes.

• 🔧 Plastic mediators (or guitar mediators) for neatly tweaking the body. Metal screwdrivers can leave scratches!
• 🔍 Lupa or magnifying glass – many contacts and soldering elements in headphones are tiny.
• 🧲 Magnetic screwdriver (cross, 0.8-1.2 mm) - for screws in the case and some models of headphones.
• 🧴 Isopropyl alcohol (90%+) — for cleaning contacts and removing glue.
• 📦 Container for small parts – cogs and springs are easily lost.
• 🔥 Hair dryer or thermoair station - if the body is glued (relevant for Buds 4 Pro and new models).

Also, prepare your workspace: a clean desk with good lighting, preferably with an antistatic mat. If you disassemble headphones because of water, do not turn them on until completely dry (at least 24 hours in rice or silica gel).

⚠️ Note: The Xiaomi AirDots Pro 2 and later headphones use ultraviolet adhesive on some seams, which can be loosened by holding the body under the UV lamp for 10-15 minutes.

2. Disassembly of the charging case

In most cases, the problems are not in the headphones themselves, but in the contacts of the case or its battery, and we will examine the process using the example of Xiaomi AirDots Youth (similar to other models with slight variations).

Step 1: Find the hidden latches on the bottom of the case, usually two on the sides of the connector. USB-C. Carefully apply the case with a plastic mediator starting at the corner. If the case does not lend itself, slightly heat the seam with a dryer (temperature not higher than 60).°C!).

Step 2: Once the enclosures are separated, you'll see a contact board and a battery.

• 🔋 Battery bloating – if the case is deformed, the battery needs to be replaced urgently.
• 🔌 Oxidation of contacts - clean them with a cotton swab soaked in isopropyl alcohol.
• 🕊️ Dust in the jack USB-C — often the cause of poor charging.

⚠️ Attention: In the cases Xiaomi Buds 3T Pro and newer used double-sided scotch 3M Don't pull it by force, warm it up with a hair dryer and gently put it in a plastic spatula.

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If the case is not cleared because of the glue, try to put it in the freezer for 20-30 minutes. The cold will make the glue brittle, and the body will give way easier.

3. Disassembling the earphone itself

This is the most important part. Xiaomi Wireless headphones are assembled differently depending on the model, but the general principle is the same.

Step 1: Remove the silicone embushures (if any) that often hide screws or latches underneath, and some models (like FlipBuds) have them glued to be gently tucked with a nail or a plastic spatula.

Step 2: The earpiece has two halves attached by latches or glue, and start with the seam next to the microphone, which is the weakest point. Put the body in the mediator and slowly lead along the seam. If you hear a crackle, stop and warm up the space with a hairdryer.

Step 3: After the separation of the enclosures, you will see:

• 🔊 Speaker – usually glued to the front panel.
• 📶 Bluetooth antenna is a thin copper track, do not touch it with metal tools!
• 🔋 Battery - in headphones it is a small "tablet" for 30-60 mAh.
• 🎤 Microphone – can be soldered to the board or on a separate module.

The Buds 4 Pro and later use a modular design where the speaker and board are connected by a plume. Be very careful - the plumes break at the slightest jerk!

4. Diagnostics and repair of common malfunctions

Now that the earphone is disassembled, you can start looking for a problem.-5 squandering and how to fix them:

If the battery is a problem, it can be replaced with a similar one (see the headphone model on AliExpress or in local radio stores). RMA-223.

To check the speaker, connect it to the sound source (for example, a phone through an audio cable with a connector). JST If the sound is clear, the problem is the headphone board.

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In 80% of cases, a dead earphone can be reanimated by cleaning contacts or replacing the battery, and only 20% of the breakdowns require complex board repairs.

Cleaning and prevention

Even if the headphones are working normally, preventive cleaning will prolong their life.

• 🧹 Speaker: Use a soft brush (for example, for watercolor) or a toothpick with cotton wool soaked in alcohol. Don't blow into the speaker with your mouth - saliva can oxidize the contacts!
• 🔌 Contacts: Wipe them with a cotton swab with alcohol. In the case, pay attention to the spring contacts - they are often contaminated.
• 🎤 Microphone: Blow the hole with compressed air (keyboard cleaner) or clean with a needle.
• 🔋 Battery: If you notice bloating, replace it immediately! Bloated batteries can ignite.

Use chlorhexidine or miramistine to disinfect, which won't damage plastic or leave you in a divorce. Don't use aggressive solvents (acetone, white spirit)!

After cleaning, allow the parts to dry completely (at least 1 hour) before assembly. If you clean the headphones due to moisture, use silica gel (boxes of shoes) to absorb residual moisture.

6.Assemblying headphones and case

To assemble the device you need to reverse, but there are several nuances:

1. Check all the plumes and contacts, they should fit tightly. In Buds 4 models, the speaker plume often falls out of the connector.
2. Secure the battery with double-sided tape (if it's not soldered contacts). Use it. 3M VHB or similar.
3. Apply new glue to the case if the old one has lost properties. LOCTITE 401 or superglue gel.
4. Check the gaps – if the case does not close tightly, you may have forgotten to install the sealing gum (there is in FlipBuds Pro).

After assembly:

1. Charge the case and headphones 100%.
2. Make a test connection to the phone.
3. Check the volume balance between the headphones (in the Bluetooth settings on the phone).
4. Make sure the microphone is working (record the voice message).

⚠️ Note: If the headphone is not charged in the case after assembly, check the polarity of the contacts. In some models (AirDots S), the plus and minus are located outside the standard - compare with a working headphone.

7.Where to buy spare parts and when to contact the master

If you need spare parts for repair, look for them at the following sites:

• 🛒 AliExpress is the biggest choice but long wait (look for the model, for example, "Xiaomi Buds 3 battery»).
• 🏬 Local radio markets – there are often universal speakers and batteries.
• 🔧 Xiaomi Service Centers – Sometimes Sell Original Parts (But Expensive).
• 📦 Donor devices – you can buy broken headphones of the same model on Avito or eBay.

To contact the master is worth in cases:

• 🔥 Burned fee - requires diagnosis on a microscope and soldering SMD-component.
• 🎛️ Problems with Bluetooth module – without special equipment can not be fixed.
• 🔊 Torn membrane speaker - replacement at home often leads to an imbalance in sound.

Average cost of repair in the service:

• Battery replacement: 500–1000 ₽.
• Cleaning/Contact Repairs – 300–600 ₽.
• Replacement of the speaker - 800-1500 ₽.
• Diagnosis of the fee - 500-2000 ₽ (depending on the complexity).

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Before buying parts on AliExpress, check the reviews with photos! Often sellers send unoriginal parts of poor quality%+.

FAQ: Frequent questions about the dismantling of Xiaomi Wireless