Disassembly of headphones Xiaomi Mi True Wireless Earbuds: instructions with nuances and warnings

Why should you need to disassemble headphones Xiaomi Mi True Wireless?

Xiaomi Mi True Wireless Earbuds (TWS Basic, Earbuds Basic 2 or Air 2/Pro) are popular wireless gadgets with good price-to-quality ratio. However, over time, even these require interventions, from simple speaker cleaning to battery replacement or button repair.

First, speaker pollution is the most common problem: Dust, earwax and moisture accumulate in the grilles, which leads to a distortion of the sound or a complete loss of volume in one of the headphones. Second, battery discharge: after 1.5-2 years, the battery capacity drops by 30-50%, and the headphones hold a charge for only 1-2 hours. Finally, mechanical breakdowns - fell off buttons, cracks in the case or problems with the contacts of the charge case - also require opening.

But before you start screwdriver, consider the risks. Xiaomi doesn't officially repair these models, they're considered "uncollectable." Which means that after the autopsy, you lose the warranty (if it's still valid) and risk damaging fragile plumes or microphones. If the headphones are warranty, you better go to the service center. If not, read on.

Cleaning the speakers from dirt|Battery replacement|Repair of buttons/microphones|Other|Just out of interest.-->

What tools will you need to disassemble?

For a careful disassembly of Mi True Wireless Earbuds, prepare the following set of tools. Without them, you risk scratching the body or breaking the latches:

• 🔧 Plastic mediator or opener (to separate parts of the body without scratches).
• 🔧 Thin screwdriver with a flat sting (size 1.5-2 mm).
• 🔧 Tweezers (to extract plumes and small details).
• 🔧 Hair dryer or thermo-air station (if the body is glued, not on latches).
• 🔧 tape or scotch (to mark the position of details).
• 🔧 Lube or magnifying glass (for working with chips).
• 🔧 Alcohol and cotton swabs (to clean contacts).

If you are planning to replace the battery, additionally buy a new battery with parameters identical to the original (usually a lithium-polymer battery with a capacity of 40-60 mAh and a voltage of 3.7-3.8 V). For models of the Air 2 Pro, you may need a soldering iron with a thin sting - their batteries are often soldered to the board.

⚠️ Warning: Do not use metal tools to disengage the body - they leave scratches and can close contacts on the board.

Step-by-step instructions: how to disassemble the headphone body

The disassembly process for most Mi True Wireless models (including the Basic 2 and Air 2) is similar, but there are nuances. Below is a universal manual with the typical "pitfalls".

Step 1: Removal of silicone embushures

Carefully pull the earbuds from the headphone body. It's mounted on small protrusions -- don't pull so you don't break. If the nozzle is boiling, put your nail on it or put it in a plastic spatula.

Step 2: Separation of the body

The earphone body consists of two parts, held together by latches or glue, insert a plastic mediator into the seam between the halves (usually visible near the charging contacts), and carefully guide along the body, dissociating the latches. If the case does not respond, heat it slightly with a hairdryer (temperature not higher than 60 ° C) to soften the glue.

Removed earbuds from both headphones | All instruments prepared |Photographed original position of parts |Photographed lack of moisture inside-->

Step 3: Extracting the fee

And when you split the case, you'll see a circuit board attached to the front of the headphone.

• 🔌 On the latches (take tweezers carefully).
• 🔌 Glued (heat with a hair dryer and remove with a wooden stick).
• 🔌 A sleeve is required for the experienced).

Disconnect the speaker plume (if any) and the battery. In Air 2 Pro models, the battery is often soldered to the board - you can't do without a soldering iron. In Basic 2, the battery is usually mounted on double-sided tape.

⚠️ Warning: Don't pull the plumes of the speaker or microphone, they're fragile and easily detachable from the board. If contact is broken, it's almost impossible to restore it without a microscope and a soldering station.

Cleaning the speakers and contacts: what can and can not be done

If the purpose of the disassembly is cleaning, focus on three key areas:

1. The speaker is the grid and the membrane. It's where the earwax and the dust accumulate.
2. Charging contacts – oxidation leads to poor contact with the case.
3. Microphone – the holes are often clogged with dirt, which worsens the quality of voice transmission.

How to clean the speaker:

• 🧹 Use a soft brush (for example, for watercolor) or a cotton swab soaked in alcohol.
• 🧹 Do not press on the membrane - it is thin and can break.
• 🧹 For persistent contamination, use a toothpick wrapped in cotton cotton.

Contact cleanup:

Charging contacts (gold or copper strips on the case) clean with alcohol and cotton swab. If there is oxidation (green coating), use a pencil eraser - it removes the oxide film well. After cleaning, wipe the contacts with a dry wipe.

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If the sound has not recovered after cleaning, check the integrity of the speaker membrane under the magnifying glass. The damaged membrane can be temporarily "resuscitated" with a drop of BF-6 glue, but this is a short-lived solution.

Battery replacement: pitfalls and tips

The battery in Xiaomi Mi True Wireless is the most vulnerable, and in 1.5 to 2 years it loses capacity, and the headphones run out in an hour, and battery replacement is possible, but there are nuances:

1. Battery selection.

Look for a battery with the same parameters as the original.

• 🔋 Capacity: 40-60 mAh (check by marking on the old battery).
• 🔋 Voltage: 3.7–3.8 V.
• 🔋 Size: Must be the same as the original (usually) 20×15×3 mm).

2. disconnection of the old battery.

In Basic 2, the battery is mounted on double-sided tape -- put it in a plastic spatula. In Air 2 Pro, the battery is often soldered. If you can't solder, you better give the headphones to the master, because the risk of damage to the board is high.

3. Installation of a new battery.

Stick the new battery to double-sided tape or heat-glue. Make sure the contacts match the connector on the board. After you replace, charge the headphones 100% and discharge to 0% 2-3 times to calibrate the controller.

Headphone Assembly: How to Avoid Mistakes

It's harder to assemble an earpiece after disassembly than to disassemble it, and the main task is to get all the parts back into place and keep the body tight.

1. Checking details.

Make sure that:

• ✅ All the plumes are connected to the board.
• ✅ The battery is securely secured.
• ✅ No foreign objects inside the body (hair, dust).

2. Body bonding.

If the case was glue-on, use heat-glue or double-sided tape (for example, 3M VHB). Apply the glue with a thin layer to avoid squeeze the excess inside. For latches, it is enough to tightly compress the halves of the case.

3. Testing.

After assembly:

• 🔊 Check the sound in both headphones.
• 🔋 Make sure they charge in the case.
• 🎤 Test the microphone (record the voice message).

⚠️ Attention: If after assembly the headphone does not turn on, disassemble it again and check: - is not the battery contacts closed; - is the speaker plume correctly connected; - is the Bluetooth antenna damaged (thin wiring on the board).

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If the headphones are unstable after assembly (switch off, distort the sound), the body is likely to be leaky. Try re-painting the seam or using a silicone sealant for electronics.

Frequent breakdowns after disassembly and how to avoid them

Even with careful disassembly, the risk of damaging the headphones remains, and here are the most common problems and ways to prevent them:

If after disassembly, the headphones stopped synchronizing with each other:

1. Put both earphones in the case.
2. Press the button on the case for 10-15 seconds (before the indicator flashes).
3. Take out the headphones and reconnect them to the phone.

If the problem persists, reset your headphone settings via the Mi Home app (if the model is supported) or manually remove them from the list of Bluetooth devices on your phone.

FAQ: Answers to Frequent Questions