Xiaomi Mi True Wireless Earbuds Basic 2

Modern. TWS-Headphones such as the Xiaomi Mi True Wireless Earbuds Basic 2 are complex engineering designs where each component is tightly packed in a compact body. from the banal cleaning of acoustic mesh from earwax to the replacement of a failed battery or speaker. However, it is worth noting that these devices are not designed for service in the classical sense, as they are assembled by ultrasonic welding or on a very aggressive glue.

Before you start dismantling, it's important to be aware of the risks. The interior is miniaturized, and the plumes and contacts are extremely fragile. Any careless movement can lead to permanent damage to the PCB or rupture of the thinnest power wires. If the device is warranted, self-intervention instantly nullifies your rights to free repairs at an authorized center.

However, for experienced users and repair enthusiasts, this procedure is quite feasible with the availability of tools and patience. In this article, we will examine in detail the process of opening the hull, the features of the internal layout of the Redmi Airdots 2 (the second name of the model), and the nuances of working with micro components.

⚠️ Warning: Opening the case is guaranteed to cause visible signs of interference and likely to break the tightness of the device.

Tools and workplace preparation required

The electronics disassembly starts well before you touch the body, and you need to have a well-lit workplace where there's no distraction, and the lights should drop evenly without creating glare on the glossy surfaces of the headphones, which is critical for fine detail.

The basic toolkit should include thin plastic blades (mediators), a metal scalpel or a special knife for opening, tweezers with thin curved ends and a sucker for neat removal of the covers. It is also highly desirable to have a hairdryer to warm the adhesive layer, since cold glue holds the structure very tightly.

• 🛠️ Thin plastic blade or mediator for slapping latches.
• 🔥 Dryer or heat pistol for softening glue.
• 📎 Thin tweezers with antistatic coating.
• 🔍 Loop or magnifying glass for inspection of small contacts.

Be sure to prepare a screw folding container if they happen to be under stickers, although this model is unlikely to have them. All tools must be clean and fat-free to keep dirt out of the speaker system. The absence of pile on napkins and tools is also an important success factor.

Body anatomy and autopsy points

The Xiaomi Mi True Wireless Earbuds Basic 2 is made of smooth plastic and has no visible screw joints. The whole structure is based on adhesive and internal plastic latches that are located along the perimeter of the junction of the two halves of the body. Understanding the internal structure helps to avoid applying efforts at the wrong points.

The main line of the connector runs in the middle of the side of the headphone, and this is where you need to get the tool in. The internal layout involves placing the battery at the bottom, and the control board and the speaker board at the top and middle, respectively, and it's important to consider that you don't damage the battery if you puncture it sloppy.

When you look at it, you can often see a subtle seam that can be hidden under a decorative element or just varnished. In the Basic 2, the seam is quite clear, but requires careful study when zoomed in. Find the place where the gap between the halves seems the greatest — this will be your starting point.

Heating process and primary opening

The most critical step is to start the halves of the body being separated, and to do that, you need to carefully warm up the junction line. Use a dryer at medium temperature, evenly warming the perimeter of the earpiece for 30-60 seconds. Don't hold the hair dryer too close to melt the plastic parts.

Once warmed up, take a thin plastic blade or mediator. Put it in the seam and make careful swaying movements, trying to get inside 1-2 millimeters. Don't try to separate the body immediately along the entire length; your task is to create an initial gap and release the first latches.

Move the tool along the seam, gradually moving deeper. If you feel strong resistance, apply heat again. Dramatic jerks are unacceptable, because they can break the plastic ears of the latches, and then you can't put the device back together without visible cracks. It's important to keep cool and methodical.

• 🌡️ Warm up the body evenly, without holding the hair dryer at one point longer than 5 seconds.
• 🔪 Use a thin tool to avoid widening the gap more than necessary.
• 🔄 Move around in a circle, gradually releasing latches from all sides.

⚠️ Warning: When opening a sharp object always direct the blade away from yourself and control the depth of penetration, so as not to damage the battery located immediately under the wall of the case.

Removal of internal components and disconnection of plumes

After the case is successfully divided into two halves, you open the internal device Xiaomi Mi True Wireless Earbuds Basic 2. Often the board can remain glued to one of the halves, in which case additional care is required when removing the main module.

Inside, you'll see thin wires connecting the battery to the board, and the circuit board itself, attached to a plastic box. The speaker is usually glued to the front of the case. To fully remove the "stuffing" may require unsticking the speaker or carefully removing the board along with the battery if they are rigidly connected.

Pay special attention to the contacts. In this model, wires can be soldered directly to the board without connectors, which complicates the process. If the wires are soldered, you will need a soldering iron and soldering skills to replace the battery, and if you use a connector, you need to turn it off, wiggling slightly from side to side, but not pulling on the wires themselves.

When working with a lithium polymer battery, be very careful. A puncture or severe deformation of the battery can cause it to ignite. If you are planning a replacement, make sure that the new battery has the same dimensions and voltage, otherwise it will simply not stand in place or damage the electronics.

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Use tweezers with curved ends to capture small details inside the case, so as not to block the view with your fingers and minimize contact with the board.

Cleaning speakers and acoustics maintenance

One of the most common reasons for disassembly is to turn down the volume or wheez due to contamination of the acoustic mesh. Earwax and dust over time tightly clog the holes, preventing the passage of sound. Disassembly allows for deep cleaning, which is not available in external maintenance.

Use a soft brush and isopropyl alcohol to clean, walk the speaker's mesh carefully, removing visible contaminants, if the mesh is removable, it can be soaked in alcohol, but the speaker itself is strictly not allowed to wet. After cleaning, let the parts dry completely before assembly.

Also check the status of the silicone bottles and channels leading to the speaker. Often, dirt accumulates at the junction between the plastic of the case and the mesh. Regular maintenance prolongs the life of the device and maintains high quality sound.

• 🧹 Use a dry toothbrush to remove dry dust.
• 💧 Wet the brush in isopropyl alcohol to remove fatty contaminants.
• 🌬️ Blow the internal channels with compressed air (carefully, without bigotry).

Assembly of the device and check of performance

The assembly is done in reverse order, but with one important caveat: you need a new glue. The old adhesive layer has already lost its properties. Use the B-7000 or T-7000 adhesive by applying a thin strip along the perimeter of one of the halves of the body.

Carefully connect the halves, making sure that all the internal components are in place and nothing is clamped. Squeeze the body hard and lock it with gums or clips while the glue is drying (usually 2-4 hours). Remove the excess glue that has protruded outside until it has frozen permanently.

Check your workability after drying. Connect your headphones to the Xiaomi Mi True Wireless Earbuds Basic 2 phone in the Bluetooth menu. Check the sound in both channels, the microphone and the sensors. If everything is working correctly, the operation can be considered a success.

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The quality of gluing directly affects the future tightness and strength of the case, so do not skimp on the fixing gums during drying.