Case analysis Xiaomi AirDots: step-by-step guide with photos and repair tips

The Xiaomi AirDots wireless headphone charger case (including the Pro, Pro 2, 3, Lite and others) is not only a convenient storage, but also a key element of the power system. Over time, owners face typical problems: the case stops charging, does not recognize the headphones or is physically damaged. In 80% of cases, these malfunctions can be fixed on their own, but this will require careful disassembly of the case.

In this article, you will find a step-by-step photo instruction, a list of tools you need, and critical warnings to help avoid damage to the board or battery. USB-C And we'll give you some tips for diagnosing malfunctions before you start repairing, and if you've never done a piece of electronics, don't worry, the case design is simpler than it looks.

Preparation: security tools and measures

Before you start disassembling, make sure you have everything you need, and if you don't have at least one tool, you can damage the body or the internal components, and here's the minimum set:

• 🔧 Plastic mediator or guitar mediator (to separate parts of the body without scratches).
• 🔨 A thin screwdriver with a cross-tipped tip (usually) PH00 or PH0).
• 🧲 Magnetic substrate or bowl (so as not to lose small screws).
• 🔍 Loop or magnifying glass (to inspect contacts and soldering).
• 🧴 Isopropyl alcohol (90%+) Cotton swabs (to clean contacts).
• 🔋 Multimeter (to check the battery voltage).

If you are planning to replace the battery or repair the board, additionally prepare: soldering iron with a thin sting, Prisoy, Flus, Thermoclei (for fixing the new battery).

⚠️ Warning: Do not use metal tools (knives, screwdrivers) to disengage the body, this will lead to irreversible scratches and may damage the internal plumes).

Also, be sure to discharge the case to 0% before disassembly, which minimizes the risk of short circuits in accidental contact with the board. If the case does not turn on, leave it off for 24 hours.

Diagnostics of malfunctions: when disassembly is really necessary

The problem isn't always inside the case, so before you disassemble the case, check for external factors that may have caused the failure:

Critical: If the case fell from a height of more than 1 meter or was exposed to moisture, disassembly can reveal hidden damage to the board (microcracks, corrosion), in such cases, repairs are often unprofitable - it is cheaper to buy a new case.

To check the battery without disassembly:

1. Connect the case to the charging and watch the indicator.
2. If the LED flashes red for more than 10 minutes, the battery is discharged to a critical level.
3. If the indicator does not burn at all - the problem in the power chain (connector, board, cliff).

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Before disassembling, take a picture of the case from all sides – this will help you to properly assemble it back, especially if you are doing electronics repair for the first time.

Step-by-step disassembly of the Xiaomi AirDots case (universal method)

The design of Xiaomi AirDots case design is almost identical for all models, except for the location of the screws and the type of connector. We will look at a universal algorithm that fits 90% of the time.

Step 1: Removal of the upper cover

The case case case has two parts, clamped together by screws and latches, and start with a neat separation of the top cover.

1. Insert a plastic mediator into the gap between the top and bottom of the case (start from the connector side). USB-C/Micro-USB).
2. Smoothly drive the mediator along the perimeter, alternately snapping clips. Don't force - if the lid does not respond, then you missed the screw.
3. After snapping all clips (usually 4-6 pieces), carefully remove the cover, do not pull it sharply - the plumes may be glued inside.

Step 2: Removing the board and battery

Under the top cover you will see:

• 🔋 Lithium polymer battery (usually glued to the housing).
• 📱 Printed circuit board with charging connector, indicator and contacts for headphones.
• 🔌 Spring contacts (can be soldered to the board or connected by a plume).

To extract the fee:

1. Unscrew all screws (usually 3-5 pieces, 3-5 mm long).
2. Carefully disconnect the plumes (if any) with a plastic shoulder blade.
3. Remove the fee by remembering the location of the contacts.

Step 3: Dismantling the battery

The battery in the Xiaomi AirDots case is glued with heat glue to remove it.

1. Put a plastic shoulder blade on the battery from either side.
2. If the glue is too strong, heat the body with a hairdryer (temperature not higher than 60).°C) within 1-2 minutes.
3. After removing the battery, do not abandon it - lithium polymer batteries can ignite if damaged.

⚠️ Warning: If you notice a bloating battery (the body is deformed or has grown in size), do not attempt to pierce or bend it.

Features of disassembly for different models of AirDots

While most Xiaomi cases are similarly designed, there are nuances for specific models, and the key differences are:

Xiaomi AirDots Basic / Lite

The simplest design:

• 🔧 The screws are arranged symmetrically (2 from below, 2 from above).
• 🔋 Battery at 300-350 mAh, glued weakly (can be removed without heating).
• 📱 The board does not have a protective shield, so it is easy to damage it with static electricity.

Difficulty disassembling:

Xiaomi AirDots Pro / Pro 2

More complex design with improved protection:

• 🔧 The screws are hidden under the stickers (you need to carefully remove them without damaging them).
• 🔋 Battery at 400-500 mAh, often soldered to the board (soldier iron is required).
• 🛡️ The fee is covered with a protective varnish - when soldering, you need to use flux.

Difficulty disassembling:

Xiaomi AirDots 3 / 3 Pro

Modern modification of the C USB-C and improved tightness:

• 🔧 Screwdriver with anti-vandal head (Security Torx screwdriver required) T5/T6).
• 🔋 500-600 mAh battery, often glued with gel glue (heating required).
• 📶 Additional wireless charging chip (if the model supports Qi).

Difficulty disassembling:

For wireless charging models (AirDots 3 Pro, some versions of Pro 2), there's an extra coil inside the case. Don't pull it by the wires, they're very thin and easily detachable from the board.

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If your model supports wireless charging, check before disassembling whether this feature is disabled in the headphone settings. Sometimes the problem lies in the software failure, not in the hardware.

Typical Problems and How to Resolve Them

After disassembling the case, you may encounter several common malfunctions, and here's how to diagnose and fix them:

1.The case is not charged by cable

Reasons:

• 🔌 Oxidation or contamination of the connector USB-C/Micro-USB.
• 🔧 Breaking of soldered contacts on the board.
• 🔋 Failure of the charging controller (a microchip next to the connector).

Decision:

1. Clean the connector with a cotton swab soaked in isopropyl alcohol.
2. Call the multimeter circuit from the connector to the battery (should be resistance 0-0.5 ohms).
3. If a cliff - solder contacts again (use a soldering station with a temperature of 300-350).°C).

2.The case doesn't charge the headphones

Reasons:

• 🔌 Oxidation of spring contacts inside the case.
• 🔧 Breaking the plume connecting contacts with the board.
• 📱 Failure of the power controller on the board.

Decision:

1. Clean the contacts with a stripe or alcohol.
2. Check the integrity of the plume (if it is torn off, solder or replace).
3. Measure the voltage at the contacts with a multimeter (should be 3.7-4.2 V when connecting the charging).

3. Quick discharge of the case

Reasons:

• 🔋 Battery wear (capacity below 50% of nominal value).
• 📱 Current leakage due to damaged circuit board or short circuit.

Decision:

1. Check the battery capacity with a tester (if below 200 mAh, replace it).
2. Check the board for blackened elements or bloated capacitors.
3. If you find damaged components, replace them or contact the service.

⚠️ Warning: If the case still discharges quickly after battery replacement, the problem may be in the power controller (chip). BQ25601 Replacing it requires professional equipment and microsoldier skills.

Case assembly after repair

Collecting the case back is often more difficult than disassembling. Follow these guidelines to avoid mistakes:

1. Check the location of all plumes and contacts – they must match the original position (use photos taken before disassembly).
2. Hold the battery: If it was on glue, use heat-glue or double-sided tape. If soldered, check the quality of soldering (contacts should not go away with a slight twitch).
3. Set the board in place and twist the screws. Don't drag them over, it could damage the landing holes.
4. Connect the body parts: Start on the hinge side, then click the clips around the perimeter. If the lid does not fit tightly, check if a foreign object (for example, a clip of a plume) has entered.

Check the efficiency

• Connect the case to the charging - the indicator should light up.
• Put the headphones inside – they should start charging (the contacts should “click”).

If the case does not work after assembly:

• 🔍 Check if you have forgotten to connect the plume or contact.
• 🔧 Make sure all screws are twisted (not even one can lead to poor contact of the board with the case).
• 🔋 Measure the voltage on the battery – if it is below 3.0 V, it could discharge to a critical level (you need to charge external RAM).

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After assembly, leave the case for 1-2 hours without use, which will allow the glue or thermal paste to permanently freeze and prevent the displacement of the internal components.

Where to buy spare parts for repair

If you need original or compatible parts for the Xiaomi AirDots case, here are the proven sources:

When buying a battery, pay attention to:

• 🔋 Capacity - must match the original (indicated on the old battery).
• 📏 Sizes – even a slight mismatch can lead to deformation of the body.
• 🔌 Protected: Cheap batteries without a controller fail quickly.

Use filters to buy on AliExpress: Xiaomi AirDots battery + Look at the feedback from the photo, it will help to avoid forgeries.

FAQ: Frequent questions about the disassembly of the case Xiaomi AirDots

For accurate diagnosis, measure the internal resistance of the battery (should be no more than 200 mOhm).