How to disassemble headphones Xiaomi Air 2S No Damage: A Complete Guide to Photos and Videos

Headphones Xiaomi Air 2S — It's a popular model with great sound and convenient ergonomics, but even these are not immune to breakdowns. Dust, moisture, a discharged battery or mechanical damage can cause the device to fail. Disassembling headphones is the first step to diagnose or repair, but without design knowledge, it is easy to damage fragile parts. In this article, you will find a step-by-step instruction with photos, a list of necessary tools and unique tips for disassembling without traces.

It is important to understand: Xiaomi Air 2S — These are wireless headphones with miniature components, where every millimeter counts, and a failure to disassemble can cause the body to lose its tightness, damage to the speaker, or tear off the plumes. We will tell you how to avoid common mistakes, what tools to use (and what not to do), and also share the secrets of professional craftsmen. If you have never understood electronics, do not worry: with our instructions, even beginners can do this.

Before you start, answer the question: Why do you have to disassemble headphones? This will help you follow the instructions more accurately.

1. Disassembly preparation: safety tools and measures

Without the right tools to disassemble Xiaomi Air 2S It's almost impossible. The earbuds are glued together, and the internal parts are fixed with glue and latches:

• 🔧 Plastic mediator or spatula (0.2-0.4 mm) - to separate the glued parts of the body!
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature not higher than 60)°C, or the plastic will melt).
• 🧲 Magnetic screwdriver. T3/T4 — for unscrewing screws (in some versions they can be under the seal).
• 📦 Container for small parts – screws and springs are easily lost.
• 🧴 Isopropyl alcohol (90%+) — Cleaning contacts and removing glue residues.
• 📸 Smartphone with camera – take pictures of each step so as not to confuse details when assembling.

⚠️ Warning: If the headphones have been exposed to moisture, be sure to dry them 24-48 hours in rice or silica gel before disassembling. It is dangerous to disassemble wet headphones - this can cause a short circuit when turned on!

Also prepare the workplace: a table with good lighting, an antistatic mat (if any) and gloves - fingerprints on the inside can degrade sound. Don't work on a carpet or soft surface - a lost cog will be impossible to find.

Connected headphones to charging (testing performance)|

I photographed the body from all sides.|

Prepared tools and workplace|

Turned off the power (if the headphones were turned on)|

Read the instructions to the end (avoid improvisations)-->

2. disassembly of the body: how to open headphones without damage

Xiaomi Air Corps 2S It's made up of two parts that are glued around the perimeter, and the challenge is not to damage the sealing ring (which is responsible for dust protection) and not to leave any traces on the plastic:

1. Heat the body. Use the hair dryer at minimum power, keeping it at a distance of 10-15 cm from the earpiece.Greet 1-2 minutes, evenly rotating the earpiece. Don't overheat - the plastic should be warm, but not hot!
2. Separate parts: Insert a plastic mediator into the gap between the top and bottom of the case (start on the side where there are no buttons). Carefully drive the instrument around the perimeter, gradually increasing the gap.
3. Remove the top cover. When the glue is loose, pull the lid and remove it. If you feel resistance, warm up the problem area again.

⚠️ Warning: Inside the case, you'll see a speaker plume glued to the board. Don't pull it, it breaks off the chip at the slightest effort! If the plume breaks off, the earphone stops working, and you'll need a soldering station to recover.

After the lid is removed, take a picture of the location of the parts.

• 🔋 Battery (soldered to the board or connected through a connector).
• 🔊 Dynamics (fixed to rubber shock absorbers).
• 📶 Bluetooth antenna (thin copper track on board).
• 🔌 Charging contacts (can be coated with protective lacquer).

3. Diagnosis of internal components: what can break

After opening the case, inspect the details for damage. Here are typical Xiaomi Air malfunctions 2S and signs:

If you find a bloated battery, stop working immediately! These batteries can ignite. Carefully remove it (without piercing!) and dispose of it according to local regulations. The Xiaomi Air 2 or Redmi AirDots 2 battery will be suitable for replacement, they are compatible in size.

To check the speaker, connect the earphone to the tester or multimeter in vertebrae mode. The resistance of the working speaker should be within 16-32 Ohms (OL) — dystopian.

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If the headphone does not turn on after disassembly, check the fuse on the board (a small black chip marked with a marking). F1). It can burn if you short it out. Replace it with a similar one with the same face value (usually a short circuit). 0.5A/32V).

4. Headphone cleaners: how to remove dust and moisture

A common cause of sound deterioration is contamination of the speaker or mesh, and you'll need to clean:

• 🧼 Cotton swabs (better wooden, not plastic).
• 💧 Isopropyl alcohol 90%+ (Do not use water or household cleaners!).
• 🌬️ A container with compressed air (for blowing dust from hard-to-reach places).
• 🔍 Lunch or magnifying glass - so as not to miss minor contamination.

Procedure:

1. Moisten the cotton swab in alcohol and gently wipe the speaker mesh (don't press!).
2. Blow the headphone with compressed air, holding the canister vertically (to prevent moisture from getting in).
3. Clean the charging contacts and the dust board with a soft brush.
4. If you have oxides on the board (green or white), remove them with a pencil eraser (caution!).

⚠️ Warning: Don't use toothpicks or metal tools to clean the speaker - they can tear the membrane! Also avoid getting alcohol on rubber seals - it can eat them up.

After cleaning, allow the headphones to dry for 1-2 hours before assembly. If the sound after cleaning does not improve, the problem may be a damaged speaker membrane or detachment of the magnet (in which case, a replacement will be required).

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Regular cleaning of headphones (every 3-6 months) prolongs their life by 30-50%. Pay special attention to the microphone mesh - they clog the fastest.

5. Battery replacement: step-by-step instructions

Battery in Xiaomi Air 2S — After 2-3 years, the capacity drops by 30-50%, and the headphones run out in an hour, 3.7V 55mAh plug-in JST 1.25) and soldering iron (if soldered battery).

Instructions:

1. Disconnect the battery plume from the board. If it is soldered, carefully unfurl the contacts without overheating the fee (maximum 3 seconds per contact!).
2. Remove the old battery. It can be glued to double-sided tape -- put a plastic spatula on it.
3. Install a new battery by securing it with tape or glue B-7000 (Don't use superglue!).
4. Connect the plume to the board. If you solder, use flux and minimum solder.

⚠️ Note: When soldering, do not touch the soldering iron charge control chip (usually marked as BQ25601 It's overheating that will knock out the earphone!

After replacing the battery, be sure to check the voltage with a multimeter–4.2V. If the voltage is lower 3.0V, The battery is faulty or is not connected properly.

Tip: if you do not want to solder, you can find a battery with a soldered connector (sold on AliExpress as "battery for Xiaomi Air") 2S"). It will make it easier to replace, but it will cost more.

6.Assembly headphones: how to avoid mistakes

Build Xiaomi Air 2S After a disassembly, it's a task no less important than disassembling. The rule is that everything should fall into place without effort. If something doesn't fit, you missed the part or you didn't connect the parts correctly.

Assembly order:

1. Make sure all the plumes are connected to the board (speaker, antenna, buttons).
2. Check that the sealing ring lies exactly along the perimeter of the body.
3. Lubricate the edge of the body with a thin layer of glue B-7000 (Don’t put too much on – the excess will be squeezed inside!).
4. Combine the upper and lower parts of the body, slightly press and fix with clamps for 10-15 minutes.
5. Rub the excess glue with alcohol until it is dry.

⚠️ Warning: Don't use superglue or epoxy to bond the case:

• 🔥 Damage plastic (dissolve or deform).
• 🎧 Deteriorate the sound (glue will hit the speaker).
• 🔋 Block access for future repairs.

After assembly, check the headphones:

• 🔋 Charging (plug into the case, the indicator should catch fire).
• 🎵 Sound (play the test track at different frequencies).
• 📶 Bluetooth connection (check the stability of the connection).

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

• Correct connection of plumes (especially the battery).
• Safety lock integrity on board.
• No short circuit (call the card with a multimeter).

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If the earphone is working after assembly, but the sound is quieter, check if the speaker has got glue on the mesh. Clean it carefully with alcohol.

7.Typical mistakes and how to avoid them

Even experienced craftsmen sometimes make mistakes when disassembling Xiaomi Air. 2S. Here are the most common ones and how to prevent them:

Another common problem is that the Bluetooth antenna is damaged when it's not disassembled neatly, and it's a thin copper track on the board, and if the antenna is off, the earphone will lose communication all the time, and you can only reconnect it with soldering under a microscope, which is almost impossible at home.

If you doubt your abilities, it is better to contact the service.The cost of repairing Xiaomi Air 2S average:

• 🔧 Battery replacement: 800-1500 rubles.
• 🔊 Replacement of the speaker: 1000-2000 rubles.
• 📶 Repair of Bluetooth module: 1500-2500 rubles.
• 💦 Cleaning after moisture: 500-1000 rubles.

8. Alternative methods of repair without disassembly

It's not always necessary to disassemble, but here are the cases where you can do without it:

• 🔋 Charging problems: If the headphones don't charge, try to clean the contacts in the case and on the headphones with alcohol.
• 🎵 Wheezing in sound: Perhaps the speaker's net is full of earwax. Blow the earbud with compressed air (without disassembling!).
• 📶 Poor Bluetooth connectivity: Reset the headphone settings in the Mi Home app and reconnect them.
• 💧 Moisture intake: Place your headphones in rice or silica gel for 24 to 48 hours. Do not turn them on until dry!

If the headphones are not turned on, but are charged (the indicator in the case is burning), try resetting them to the factory settings:

1. Put the headphones in the case.
2. Press and hold the touchpad on both headphones for 15 seconds.
3. The indicators should flash red, then white - this is a reset signal.

If these methods don't work, you'll have to sort it out, but 60 percent of the time, the problem is solved without opening the body.

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If one headphone is quieter than the other, check the sound balance in your smartphone settings. On Xiaomi, this is done in Settings → Sound. → Stereo balance.

FAQ: Frequent questions about Xiaomi Air disassembly 2S