How to carefully disassemble the case from Xiaomi wireless headphones: instructions with photos and tips

Xiaomi’s wireless headphone case is not just a storage case, but a full-fledged charger with battery, contacts and electronics. It can eventually fail: stop charging the headphones, do not turn on or be physically damaged, in which case disassembly becomes necessary — whether for cleaning contacts, replacing the battery or diagnosing malfunctions.

But it's not as easy to disassemble a case from Xiaomi AirDots, Redmi Buds or other models as it seems. The manufacturer uses hidden latches, glue and compact assembly, where every millimeter counts. A breakdown error can lead to plumes being damaged, contacts breaking or even board breakage. In this guide, we'll take a look at the process in detail, show you the unique features of mounting for different models, and give you tips on how to avoid typical errors.

What tools will be needed to disassemble

Without the right tools, it’s almost impossible to disassemble a Xiaomi case — the plastic latches are fragile, and the glue (if any) requires a careful approach.

• 🔧 Plastic mediator or opener to disengage the body without scratching!
• 🔥 Hair dryer or thermoair station - if the case is glued (relevant to AirDots Pro 2 and newer models.
• 🔍 Lupa or magnifying glass – latches and plumes in Xiaomi cases are miniature, they are easy to miss.
• ⚡ Multimeter – to check the voltage on the battery and contacts (optional, but useful in the diagnosis).
• 🧲 Magnetic screwdrivers -- the screws in the cases are tiny, easy to lose.

If you plan to solder contacts or change the battery, additionally prepare a soldering iron with a thin sting (up to 30 watts), solder and flux. For models with waterproofing (for example, Redmi Buds 3 Pro) may require a sealant to restore protection after disassembly.

⚠️ Warning: Do not use knives or screwdrivers with sharp edges - they will slip and damage the case or board. Even a small scratch on the contacts can disrupt the charging of the headphones.

Preparation of the case for disassembly: what to do in advance

Before you start, follow a few mandatory steps, which will save you from unpleasant surprises and simplify the process:

1. The battery under load can shorten when contacts accidentally close during disassembly.
2. Take a picture of the case from all sides, and this will help you put it back together, especially if you're doing repairs for the first time.
3. Check out the case model. Xiaomi has dozens of variations, from AirDots Youth to Buds 4 Pro. They have different designs!

If the case doesn't turn on or charge the headphones, try to clean the contacts with alcohol first - perhaps the problem is oxidation.

1. Wet the cotton swab in isopropyl alcohol (90% and above).
2. Gently wipe the contacts on the case and headphones.
3. Let it dry for 10-15 minutes and try to connect again.

If the cleaning didn't work, start disassembling, but remember, the warranty on the case is lost after the autopsy (if it was still in effect).

Step-by-step: how to disassemble the case from Xiaomi AirDots and Redmi Buds

Consider a universal disassembly algorithm using popular models. Most Xiaomi cases are assembled in a similar way, but there are nuances (we will specify them separately).

Turn the case off the charger.

Make sure the indicator is not on (the battery is discharged)

Prepare the workplace (clean surface, good lighting)

Check the availability of all tools-->

Step 1: Separation of the upper cover

In most cases (such as AirDots 2 or Redmi Buds 3), the top is mounted on plastic latches to remove it.

1. Insert a plastic mediator into the gap between the top and bottom of the case (start at the corner where there is no indicator).
2. Carefully drive the mediator along the seam, alternately snapping the mounts, you will hear the characteristic clicks.
3. Do not force – if the lid does not lend itself, then you missed the latch or the case is glued (see step 2).

Buds 4 Pro and newer models may have an extra screw under the sticker (usually under the slate). QR-Carefully put the sticker on and check.

Step 2: Work with glue (if the cover is not removed)

Some cases (such as AirDots Pro 2) have adhesive attachment.

1. Heat the dryer edge of the case (temperature) ~60°C) for 1-2 minutes. Do not overheat - plastic may deform!
2. Try again with the mediator. The glue should get softer.
3. If the lid has separated, but the glue remains interfere - remove them with alcohol or acetone (apply to a cotton swab, not on a fee!).

⚠️ Warning: When heated, do not point the hair dryer at the battery - this can cause it to swell or even catch fire. Keep the tool at a distance of 10-15 cm.

Step 3: Removing the board and battery

After removing the cover, you will see:

• 🔋 Battery (usually glued to the bottom of the body).
• 📱 Payment with contacts (can be fixed with screws or latches).
• 🔌 Indicator plume (thin wire going to the LED).

Algorithm of action:

1. Then, put the sleeves in the back of the sleeves with a magnetic sleeve.
2. Carefully unplug the indicator plume. It's fragile -- pull the connector, not the wires!
3. If the battery is glued, put a plastic spatula on it. Don't push it through -- there's a lithium polymer battery inside!

For Buds 3 Pros and older, the charge can be fixed to double-sided tape, in which case heat it with a hair dryer (as in step 2) and gently tuck it in.

Step 4: Diagnostics and repairs

Now that the case is disassembled, you can:

• 🔍 Check the integrity of the contacts (frequent problem is oxidation or breakage).
• 🔋 Replace the battery (if it does not hold charge).
• 📶 Check the board for burnt-out elements (blackened resistors, swollen capacitors).

To check the fee, use a multimeter:

• Set the voltage measurement mode (DC, 20V).
• Connect the probes to the battery contacts. Normal voltage is 3.7–4.2V.
• If the voltage is lower 3.0V, Replace the battery.

Step 5: Case assembly

Collect the case in reverse order, but note:

• If you removed the indicator plume, make sure that it sat tightly in the connector.
• Stick the battery to a double-sided tape (if it is not on the latches).
• Before the final assembly, check the operability - connect the case to the charging and see if the indicator is on.

Models with adhesive connection (for example, AirDots Pro 2) can use a drop of superglue at the joints, but do not overdo it - excess glue can get on the board.

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The most common build error is the wrong connection of the indicator plume. If the indicator does not burn after assembly, disassemble the case and check the contacts.

Features of disassembly for different models Xiaomi

While most Xiaomi cases are similarly designed, some models have unique nuances.

If your model is not in the table, look for a video disassembly on YouTube for it, which will save time and nerves. For example, Redmi Buds 4 Lite cases have a custom mount board that is easy to break without knowing the nuances.

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Before disassembling a rare model (for example, Xiaomi FlipBuds Pro) take a photo of the internal structure from different angles. This will help with the reverse assembly, since the plumes there are located outside the standard.

What to do if the case is not clear: typical mistakes and decisions

Sometimes, even with the right approach, the case doesn't work, and let's look at some of the most common problems and ways to solve them.

Problem 1: The lid doesn't snap, even though there's no latch

Possible causes:

• 🔥 The case is glued, but you haven't heated it enough (repeat step with a hair dryer).
• 🔧 You missed a hidden screw (check under stickers or rubber legs).
• 🛠️ The latches are jammed due to dust (try blowing the gap with compressed air).

Problem 2: Battery glued to death

If the battery does not separate:

• 🔥 Heat the body with a hair dryer (but not more than 60)°C!).
• 🧊 Put the case in the freezer for 10-15 minutes - the glue will become brittle (risky for electronics!).
• 💊 Use isopropyl alcohol -- it dissolves most of the adhesives. Apply on a cotton swab and wait 5 minutes.

⚠️ Warning: If the battery is blown up, don't try to heat it or pierce it! it could cause a fire. Carefully remove it with a plastic spatula and dispose of it.

Problem 3: After disassembly, the case does not turn on

Check it out.

• 🔌 Is the indicator plume connected correctly (frequent error!).
• 🔋 Are the battery poles confused (plus and minus usually marked on the board).
• 📱 Is there any damage on the board (blackened elements, burned tracks).

If the case still does not work, try to connect it to charging for 30 minutes - sometimes the charge controller "hangs" and needs to be reset.

How to replace the battery in the case Xiaomi: selection and installation

The battery is the most common cause of a case failure, and over time, it loses capacity, it swells up, it stops holding the charge, and it's not difficult to replace, but it requires care.

Which battery to choose

The battery parameters must be exactly the same as the original:

• 🔋 Voltage: usually 3.7V or 3.8V.
• 📏 Sizes: Measure the old battery (length) × width × thickness).
• 🔢 Capacity: must be at least the original (for example, 300-500 mAh).
• 🔌 Type of connector: Xiaomi often uses connectors JST 1.0 or PH 2.0.

Where to buy it?

• 🛒 AliExpress – search by case model (e.g., “Buttery for Xiaomi AirDots 2 case").
• 🏬 Local radio parts stores - if you need an urgent replacement.
• 🔄 Donor case – you can buy a broken case of the same model on Avito or eBay.

Replacement

1. Unplug or unplug the old battery connector, and if it's soldered, use a soldering iron with a thin sting and solder with flux.
2. Remove the residues of the glue from the body (alcohol or acetone).
3. Stick the new battery onto a double-sided scotch (or a drop of glue around the edges).
4. Connect the connector or solder the wires, observing polarity (+ ce +, – ce –).

After replacement, let the battery "swing": completely discharge and charge the case 2-3 times. This will prolong its life.

Cleaning contacts and restoring headphone charging

If the case is charging, but the headphones are not, the problem is probably contacts, they can oxidize, get dirty or get away from the board.

How to Clean Contacts

You'll need:

• 🧴 Isopropyl alcohol (90% and higher).
• 🧼 Cotton swabs (or microfibre tissue).
• 🔍 Lupa to see the small details.

Procedure:

1. Wet the cotton swab in alcohol and gently wipe the contacts on the case and headphones.
2. For hard-to-reach places, use a toothpick wrapped in cotton.
3. Let it dry for 10-15 minutes (alcohol evaporates quickly, but it is better not to rush).
4. Check charging – if the problem remains, it is possible that the contacts have moved away from the fee (solding is needed).

If contacts are off the charge

This is a more serious problem, but it can be corrected by rationing:

1. Check the charge under the magnifying glass – look for fallen tracks or contacts.
2. If the contact is broken, carefully solder it back with a thin solder.
3. Use flux for better grip (for example, LTI-120).
4. After soldering, check with a multimeter whether there is a circuit between neighboring contacts.

If you've never soldered, you'd better take the fee to the service. An error can short-circuit and cause the case to fail.

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Contact oxidation is the most common reason for headphones to fail, and 80% of the time, cleaning with alcohol solves the problem without disassembling the case.

FAQ: Frequent questions about the dismantling of Xiaomi cases