Owners of Xiaomi wireless headsets often face the need for physical intervention in the device, which may be a sudden decrease in autonomy, ingesting moisture or simply wanting to clean the speaker mesh of sulfur that cannot be removed by surface cleaning. Standard methods like purging or wiping with alcohol help only temporarily, while disassembling the case allows you to solve the problem radically.
However, the design of modern TWS-In the beginning, the designs of models such as Redmi Buds or Mi True Wireless do not involve easy access to the insides. Engineers use hidden screws and tight fitting of parts to ensure moisture protection and ergonomics. Before starting dismantling, you need to be clear about the risks: Careless movement of the tool can damage the plume or the battery itself, making recovery impossible.
In this article, we will take a closer look at the process of opening popular models, the necessary tools and the subtleties of working with miniature electronics. You will learn where to look for hidden fasteners and how to properly disconnect modules so as not to violate their integrity. This guide will help you save on a service center or prolong the life of your favorite gadget.
Workplace preparation and tools
The electronics disassembly begins well before the first touch of the case with a screwdriver. You need to organize a clean, well-lit space where small details do not get lost in the carpet pile or roll under the sofa. The ideal option is a special antistatic mat, but a regular table with white paper, on which cogs are clearly visible, will also work.
The toolkit should be specialized. Conventional household screwdrivers can lick micro-screw hats, so stock up on a precision set.
- 🔧 Precision screwdrivers (Phillips sizes #000, P2 flat-slide).
- 🛠️ Plastic blades (spoogers) and mediators for opening latches.
- 📎 Thin tweezers with curved ends for working with small plumes.
- 🌡️ A hair dryer or thermophene (to soften the glue if the model is glued together).
- 🧪 Isopropyl alcohol and soft brush for subsequent cleaning.
Pay special attention to lighting. A lamp with a magnifying glass or a good table light will help distinguish microscopic contacts. Do not neglect the antistatic bracelet, especially if you work in a dry room in the winter, since static voltage can disable the charge controller even before repairs begin.
☑️ Ready to disassemble
Design features and types of fastening
Xiaomi's in-house headphones, whether they're wired models like Piston or wireless Redmi Buds, have similar architectures, but they differ in assembly methods. Most modern devices are assembled without visible screws using a system of internal latches and adhesives. Understanding the type of attachment is key to successful crack-free opening.
There are two main types of assembly: one is a screw joint, where the fasteners hide under silicone mounts or decorative stickers; the other is glue or tight latches, which is typical of moisture-resistant versions. Trying to open the glue case by force without first heating will deform the plastic.
| Model headphones | Type of attachment | Location of screws | Difficulty |
|---|---|---|---|
| Xiaomi Piston 3/4 | Screws + Latches | Under a rubber plug | Low. |
| Redmi Buds 3 Lite | Latches (Snap-fit) | Absent. | Medium |
| Mi True Wireless 2 | Glue + screws | Inside the bowl of dynamics | Tall. |
| Xiaomi Earbuds Basic | Tight latches | Absent. | Medium |
Carefully inspect the body in bright light, turning the earpiece at different angles. Often the holes are masked as plastic color or hidden by a layer of paint. Using isopropyl alcohol can help dissolve the adhesive that holds the decorative elements.
Algorithm of safe opening of the body
The dismantling process requires coolness and consistency. Start by removing all removable elements: remove the silicone embroideries and mesh, and if you find screws underneath, carefully twist them out, trying not to push too hard so as not to break the thread in the soft plastic.
If you don't have any screws, move to the halves of the body. Put a thin plastic blade in the seam between the top and bottom of the earpiece. Move the tool smoothly, with little force to tear, while walking around the perimeter. Don't try to open one side to the end, it will break the plastic latches.
⚠️ Warning: Use metal tools (needles, scissors) only as a last resort and with the utmost care.One wrong move can pierce the lithium polymer battery, causing it to ignite or bloat.
Once the latches are clicked around the perimeter, the halves of the body can be carefully diluted, and inside you'll see the main board, speaker and battery, and at this point, the key is not to jerk sharply, as the components can be connected by thin wires or soldered.
What to do if the body does not open?
Battery Dismantling and Dynamics
Inside the case, the bulk of the battery is stored. Most Xiaomi models have double-sided tape. Use a plastic card or a spatula to extract the battery, carefully putting on the battery from below. Metal tweezers are strictly forbidden to use here to avoid short circuits.
The dynamic emitter is usually attached either to adhesives or inserted into a rubber seal. If the sound becomes quiet or hoarse, it is possible that the speaker membrane is damaged or contaminated. Gently disconnect the contact wires (if they are on connectors) or solder them off if you plan a full replacement.
- 🔋 Carefully tuck the battery with a spatula, starting at the edge opposite to the contacts.
- 🔌 Disconnect the card plume connector if it is present (use a nail or plastic).
- 🧹 Clean the inner surface of the case from the remnants of old glue with alcohol.
- 🔍 Check contacts for oxidation – this is a common reason for failure after sweating.
When you install a new battery, it's important to be polar, and if you mix up plus and minus, you can instantly disable the charge controller on the board. If the wires are soldered, use a soldering iron with a thin sting and a minimum amount of solder to keep the tracks warm.
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Use a piece of double-sided 3M tape to fix the new battery, which will provide a reliable attachment and prevent rattling inside the case, which can create extraneous noise when walking.
Cleaning and maintenance of internal components
Often, disassembly is not required for repair, but for deep cleaning. The sulfur and dust that accumulates behind the speaker's grid eventually turn into a dense substance that blocks sound. Washing the mesh with isopropyl alcohol with a soft toothbrush does wonders by returning high frequencies.
Once all the elements are cleaned, you have to let them dry completely. Even isopropyl alcohol takes time to evaporate, especially in hard-to-reach areas under the speaker. Don't rush to assemble the device if you see any moisture residue.
Also check the status of the charging contact areas in the case (if the TWS model), the oxidation of these contacts causes the headphones to stop charging, you can clean them with a rod or cotton swab dipped in alcohol.
Assembly and performance check
The assembly is done in reverse order. Make sure all the wires are stacked in their grooves and not be clamped by the body. When connecting the halves of the body, make sure that the plumes and the speaker stand straight. The latches should come off with a characteristic, but not too loud, click.
If you have screws, you can cross-twisting them, evenly pressing the halves. Don't pull the screws over -- the plastic in the headphones is very fragile and can crack with overpressure. The final step is to check.
Connect your headphones to your smartphone and play a wide-frequency audio file. Check the microphone, control buttons (if any) and the balance of sound. If everything is working correctly, you can install the earpieces.
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The main criterion for successful assembly is the absence of gaps between the halves of the body and a clean, non-rattling sound at maximum volume.
⚠️ Warning: If the headphones don't turn on after assembly, don't try to charge them right away. Take them apart again and check the reliability of the battery and board contacts. Often the problem lies in the departed connector.