Owners of the popular smart device ecosystem often face the need for physical intervention in the design of their gadgets. The question of how to open Xiaomi headphones becomes relevant when battery life is reduced or an extraneous crack appears in the dynamics. Modern wireless models from the Chinese giant, be it TWS-Headsets or overhead versions, designed with an emphasis on compactness and moisture protection, which makes their disassembly a complex engineering process.
The manufacturer does not provide easy access to internal components, so the procedure requires accuracy and special tools. Incorrect opening of the case Mi True Wireless Earbuds or Redmi Buds can lead to irreversible damage to the plumes or the destruction of plastic latches. In this article, we will discuss in detail the algorithm of actions, the necessary tools and specific nuances for different generations of devices.
It is worth noting that any mechanical impact on the body automatically voids the warranty. However, if the warranty period has expired, and the device has ceased to hold the charge or the sound has become deaf, self-repair may be the only economically viable solution.
Tools and workplace preparation required
To successfully disassemble the miniature electronics, a conventional set of screwdrivers will not be enough. You will need specialized tools to work with microscopic screws and brittle plastic. The main tool will be a set of precision screwdrivers, including cross bits of size PH00 and PH000, as well as flat slits with a width of 1-2 mm.
The second critical component is a mediator or a thin plastic blade, and metal tools are not recommended because they damage the internal plumes or leave scratches on the contact areas, and the plastic bends better and does not conduct current, which reduces the risk of short circuits when accidentally touching the board.
⚠️ Attention: Using metal blades of knives or scalpels to open the body can cause the lithium polymer battery to break down and ignite.
To work with adhesives, which are often found in sealed models, you will need a hair dryer or heating platform. The heating temperature should not exceed 80-90 degrees Celsius, so as not to deform plastic elements of the structure. Also prepare tweezers with curved ends to extract small parts and adhesives B-7000 or T-7000 for reverse assembly.
☑️ Preparation for disassembly
Features of the design of various models Xiaomi
The company's audio lineup is diverse, and each design type has its own unique opening features. TWS-Models like the Mi Air 2 or Redmi AirDots are most often assembled on latches without visible screws, and their body is divided into two symmetrical halves, the joint of which runs along the equator of the device.
Overhead and full-size versions, such as Mi Headphones Comfort or Xiaomi Wireless Headphones, have a more complex architecture, where battery and speaker access is often hidden under soft embroideries or decorative overlays, and in such devices, the screws can be hidden under rubber plugs or brand logos.
Special attention should be paid to active noise cancellation (ANC) models, which have more microphones and a more capacious battery inside, which requires very careful handling of internal plumes. Any careless movement can disrupt the calibration of microphones or damage thin wires.
| Model | Type of attachment | Difficulty | Location of screws |
|---|---|---|---|
| Redmi AirDots | Latches + glue | Tall. | Absent (inside the enclosure) |
| Mi True Wireless 2 | Latchers | Medium | Under the silicone tab |
| Mi Headphones | Screws + Latches | Low. | Under the hoods |
| Xiaomi Piston | Glue + Latches | Medium | Deep in the hull. |
Understanding the type of design helps you choose the right opening strategy, and while full-size models can be more free to operate, compact plugs require jewelry precision and often heat to soften the adhesive layer.
Disassembly algorithm TWS-headphones (intracanal)
The process of disassembling the most popular True Wireless Stereo headphones begins with finding the entry point. Most screws are absent from the outside. The primary opening is done by carefully tweaking the plastic mediator around the junction of the body halves. You need to move around in a circle, gradually snapping the locks.
If the body doesn't lend itself, it might be put on glue, in which case you need to warm up the device with a hairdryer for 1-2 minutes, don't hold the hairdryer too close to melt the plastic, after heating, try to gently twist the halves of the body relative to each other or use a thin string to cut the adhesive layer.
What if the body cracks?
When you remove the outer cover, you'll see the battery pack and the main board. The battery in the Mi TWS is usually soldered with wires or connected through a miniature connector. Be careful: it's often glued to the body, and a sharp jerk can damage the shell. Put the battery on a blade, first disconnecting the contact.
The dynamic driver can also be glued or pressed, and it sometimes requires unscrewing a micro-screw hidden under a layer of plastic to extract it, and when you assemble it, make sure that the speaker grid is flat or the sound will be distorted.
Disassembly of full-size and overhead models
With full-size headsets, it's easier, but it requires consistency. The first step is always to remove the hoods. In Xiaomi models, they usually hold on plastic latches or just tightly put on the speaker ring. Pull the soft part on yourself, starting at the bottom so as not to damage the mesh.
Under the embroideries, there are often screws that hold the bowl. Unscrew them, you get access to the dynamic head. In some models, such as the Xiaomi Headphones Wireless, there may be another layer of battery mounts under the speaker. Don't pull the speaker wires abruptly, they can be short and soldered to the board.
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Take a picture of all the plumes and wires before they are turned off, which will help avoid back-assembly errors, where color marking may not be obvious.
If you need to get to the control board (usually it is in one of the bowls or in the headboard), continue to gently unwind the screws. The headband often contains an antenna and a battery. The plastic here is thicker but brittle at the break, so don't bend the arcs too much when disassembling.
Replace the battery and eliminate typical malfunctions
The most common reason for disassembly is battery wear. TWS-They use pill batteries or small cylinders, and they drop over time, and the device works. 10-15 minute 4 When replacing, it is important to choose an element with similar dimensions and voltage (usually 3.7V).
If the headphones wheez or sound is gone, the problem may be contamination of the speaker's mesh with earwax or dust. Carefully remove the mesh (sometimes it is held on glue), clean it with alcohol and a soft brush. Also check the speaker's contacts - oxidation can disrupt the signal.
If you have a charging problem, check the contacts in the case and on the headphones themselves. Often, oxidation or denting on the contact pad prevents charging. Sweeping contacts with a stripe or alcohol can solve the problem without deep disassembly.
When soldering new items, use a soldering iron with a thin sting and a temperature not higher than 300 degrees. Long heating can damage the internal chemistry of the battery or peel off the tracks on the board. Use flux for quality soldering, but be sure to remove its residue after work.
Assembly of the device and check of performance
Reverse assembly is a process that requires patience. Stack all the components so that the wires are not clamped by the body. If you used the glue for the initial opening, apply a thin layer of new glue (B-7000) to the junction of the halves. Let the glue dry a little (1-2 minutes) before the final connection.
Connect the halves of the body and press them tightly together. You can use stationery gums or clips for 15-20 minutes until the glue catches up to hold them together. Make sure all the buttons are freely pressed and the LEDs are lit when you connect to the charge.
⚠️ Warning: Do not turn on the device immediately after gluing if you have used aggressive glue. The adhesive vapors can settle on the contacts and cause corrosion.
After assembly, do a test: connect the headphones to your smartphone, check the left and right channel, microphone and control buttons. If there is sound and charging is underway, the operation can be considered successful.
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Quality assembly depends not only on accuracy, but also on the correct choice of adhesive. Avoid using superglue (cyanacrylate) next to plastic parts, as it can cause clouding or cracking of plastic ("white plaque").