Wireless. TWS-Headphones from Xiaomi have become a real hit due to the affordable price and decent sound quality, but their monolithic design often puts users at a bewilderment at the first sign of breakdown. Many owners do not even suspect that inside the compact case of Redmi Airdots hides full-fledged electronics, which can theoretically be serviced or repaired, if you know the right approach. Disassembling these devices is not an easy task, requiring accuracy, the right tool and understanding of the microelectronics device.
The challenge is that the manufacturer does not initially provide for self-repair using adhesives and hidden screws to ensure waterproofness and tightness. Attempting to open the gadget at random with a probability of 90% will damage the plastic latches or rupture the plume, after which recovery will become impossible. In this material, we will look in detail at the structure of the device, the necessary tools and the algorithm of actions for safe disassembly.
Workplace preparation and necessary tool
Before you start dismantling, you need to have a comfortable, light-filled workplace, because the internal components of the Airdots are extremely miniaturized. You need a set of precision screwdrivers, including the PH00 cross and PH000, and a thin flat screwdriver to work with the latches. You need plastic mediators or blades to open the case, which will not scratch the glossy surface of the plastic.
To work with internal contacts and the battery, you must have tweezers with thin curved ends and an antistatic mat to prevent damage to the chips by static electricity. Also prepare a hair dryer or thermostol for careful heating of the adhesive base, if the headphone model is fastened in this way.
- 🛠️ A set of precision screwdrivers (cross and flat)
- 🔧 Plastic blades and mediators for opening
- 🔥 Hazel for softening glue (optional)
- 📏 Anti-reflective tweezers
- 🧤 Antistatic mat and gloves
⚠️ Note: The use of metal tools (knives, needles) for smearing the body is strictly prohibited, as this will lead to a short circuit of the board or damage to the lithium polymer battery.
The quality of the tool directly affects the success of the operation: cheap screwdrivers can lick the screw heads, which are often made of soft metal at Xiaomi. If you do not have experience with small electronics, it is better to spend time finding a quality set than risking the integrity of the device.
Design features of Redmi Airdots
Understanding the interior is key to successful disassembly, as the Airdots range (including the Basic, S, 2, 3 versions) has its own nuanced layout. Inside each headphone is a main control board, Bluetooth antenna module, microphone, dynamic emitter and battery pack, all of which are tightly packed into an ergonomic case, which requires special attention when extracting components.
Connecting speakers to the board is most often done by thin wires soldered directly to the contact areas, or through miniature connectors. In some Redmi Airdots revisions, wires can be hidden under protective screens, making it difficult to access soldering sites without first dismantling shielding plates.
| Component | Location. | Type of attachment |
|---|---|---|
| Battery | Lower leg. | Glue base + soldering |
| Dynamician | Upper part (ear) | Glue/Getting in the groove |
| Management fee | Central part | Screws + plume |
| Microphone | Outside end | Paying. |
It is important to note that the layout of the elements may differ from generation to generation: if the first version of the battery was in the “leg”, then in newer versions, engineers could change the layout to improve weight balance.
Algorithm of disassembly of the main body
The opening process begins with finding hidden screws, which are often disguised as silicone embroideries or decorative stickers. Carefully remove the rubber pad and inspect the open area: if there are no screws, then the body is held on tight latches and adhesive layer. To separate the halves of the body, use a thin plastic blade, inserting it into the joint and making translational movements around the perimeter.
Don’t put too much effort: if the body doesn’t diverge, you may have missed a hidden screw or not warmed up enough glue. When working with Xiaomi Redmi Airdots, you often find a situation where one half of the body is removed easily, and the other requires a more delicate approach due to the wires passing inside.
☑️ Checklist before autopsy
Once the outer cover is removed, you will have access to the inner filling, but you should not rush to take out the board. First, assess the condition of the plumes and wires: they can be stretched or fixed with glue. Use tweezers to carefully disconnect the connectors if they are provided by the design, or a heater to soften the locking glue.
⚠️ Attention: When splitting the case, watch out for a thin wire connecting the main board to the control button or microphone located on the outside - it is very easy to break with a sharp movement.
Replacement of the battery and work with soldering
The most common reason for Airdots disassembly is the battery failure, which eventually loses capacity. To replace the battery, you need to carefully solder old contacts from the board, using a soldering iron with a thin sting and a minimum heating temperature, so as not to damage neighboring components. The old battery is usually glued to a plastic bed, so its removal requires careful tweaking with a plastic blade.
The new battery should have the same dimensions and voltage (usually 3.7V), as well as a suitable connector or length of wires to connect. When soldering new contacts, it is important not to overheat the battery itself, as this can cause it to bloat or fire - work quickly and use the flux for better contact.
- 🔋 Choose a battery with a similar capacity (mAh)
- ⚡ Use low temperature solder for sensitive electronics
- 🛡️ Isolate contacts with heat shrinkage after soldering
- 🧪 Check the polarity before final assembly
If you don't have the chip soldering skills, replacing the battery can be an insurmountable obstacle, in which case it's wiser to go to the service center or replace the headphones entirely. Incorrect soldering can disable the charge controller, making further operation of the device impossible.
Where can I find the right battery?
Cleaning dynamics and grid maintenance
Often the problem is not the electronics, but the banal contamination of the sound grid with earwax and dust, which leads to a quiet sound or its complete absence. To clean the dynamic membrane, you need to carefully remove the protective mesh (if it is removable) or treat it with isopropyl alcohol with a soft brush. Do not use sharp objects to pick the mesh, as you can damage the speaker.
If the sound is gone completely, the speakers' contacts on the board may have oxidized, in which case a careful stripping of the contacts with a blower or alcohol will help. After cleaning, let all the components dry completely before assembly so that the moisture does not cause corrosion.
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For deep cleaning of the speaker mesh, use an ultraviolet bath for jewelry with isopropyl alcohol, but only if you are sure of the tightness of the dynamic emitter itself.
Regular maintenance and cleaning of headphones can extend their lifespan by many times, preventing dirt from entering the body through the ventilation holes. Keep your ears clean and wipe the earbuds in time to minimize the need for complex disassembly.
Assembly and performance check
The final stage, assembly, requires a reverse sequence of actions, but with additional verification of all connections. Make sure that all screws are twisted evenly, without distortion, and the wires are not sandwiched between the halves of the body, which can lead to their rubbing in the future. The adhesive layer can be updated if necessary using a thin layer of special glue B-7000 or analog.
Once assembled, connect the headphones to the charger and check the indication: if the LED lights up and the headphones are in pairing mode, then the operation was successful. Check the sound on both channels, the microphone and the control buttons to make sure there are no hidden defects.
⚠️ If the headphones do not turn on or work incorrectly after assembly, do not immediately try to disassemble them again - let the glue fully polymerize (about 24 hours) and check the charging of the case.
A well-assembled device should sit in the ear as comfortably as before disassembly, without creaking or backlashes of the body. If you notice gaps, perhaps one of the latches is broken or the screw is not fully twisted.
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Successful disassembly and assembly of Xiaomi Redmi Airdots is possible only with the accurate tool, patience and understanding of the risks associated with miniature electronics.