Modern TVs are getting thinner every year, which inevitably affects the quality of the built-in sound. That is why many users buy additional acoustic systems, such as the Xiaomi Mi TV Soundbar. However, even high-quality equipment eventually fails or requires maintenance. The question of how to disassemble the soundbar Xiaomi Mi TV, becomes relevant when you need to replace the battery, repair plumes or clean the speakers from dust.
Opening the body of this device is a delicate process, requiring an understanding of design and the presence of special tools. Manufacturers often use hidden screws and adhesives to maintain the aesthetic appearance of the gadget. Incorrect disassembly can damage plastic latches or rupture plumes, so it is important to act strictly according to instructions.
In this article, we will take a closer look at the steps of dismantling, the necessary tools and precautions. You will learn where the screws hide, how to separate the panels without chipping, and what to look for when working with electronics. The main board in Xiaomi Mi Soundbar is located in the central part of the case under the metal screen, which requires special care when removing the top cover.
Tools and workplace preparation required
Before you start disassembling, you need to organize your workspace, you need a desk with good lighting and an antistatic mat if you can, and the absence of statics is critical to maintaining the integrity of the electronic components inside the device.
The toolkit must be selected in advance to avoid distractions in the process.The emphasis is on accuracy, as the screws in Xiaomi acoustics often have fine threads.
- 🛠️ A set of Phillips screwdrivers (cross) sizes PH000 and PH0, and a flat screwdriver for smacking.
- 🔧 Plastic mediators or spatulas (spudger) for opening the body without scratches.
- 🌡️ A hair dryer or heating plate to soften the glue (if the model has hidden screws under the stickers).
- 🧲 Magnetic mat or organizer for sorting screws of different sizes.
Pay special attention to the choice of plastic tools. Using metal blades for the (skinning) body Xiaomi Mi Soundbar is almost guaranteed to leave traces on a glossy surface. mediators made of plastic or special composite allow you to safely snap clips.
⚠️ Warning: Before starting any work, be sure to disconnect the device from the power grid and remove all cables (optics, AUX, Bluetooth adapter, if connected.
Preparing the workplace also includes safety, removing any extra items that might scratch the soundbar body, and if you have an antistatic bracelet, wear it to eliminate the risk of static electricity.
☑️ Preparation for disassembly
Design analysis and search for hidden screws
The Xiaomi Mi TV Soundbar body is designed to minimize the number of visible fasteners, which creates the illusion of monolithicity, but makes it difficult to access the insides. The first step is always to visually inspect the perimeter of the device.
Often, screws are hidden under decorative plugs or rubber legs. In some versions, fasteners can be hidden under the logo or in the depressions on the ends. Carefully probe the surface with your fingers for height differences.
If no external screws are found, the body is likely to be held on adhesive or internal latches, in which case it may be necessary to carefully heat the end parts with a hairdryer, the temperature should not exceed 60-70 degrees, so as not to deform the plastic.
- 🔍 Inspect the bottom of the soundbar for screws under rubber anti-slip linings.
- 🔍 Check the back panel in the area of the connectors (Optical, AUX, Power) for concealed fasteners.
- 🔍 Pay attention to the junction between the front grid and the main body - there may be clips.
It's important to understand that the design may vary depending on the year of production and the specific revision of the model. The standard scheme assumes that there are 4-6 main screws around the perimeter. The screws can be of different lengths, so they are better sorted by holes in a magnetic mat.
Features of adhesive compounds
The process of opening the case and dismantling panels
Once all the visible screws are removed, the most important step is to separate the body parts, and it's important not to put too much effort into it. Xiaomi's plastic is good enough, but it becomes brittle at low temperatures.
Insert a plastic blade between the upper and lower halves of the body. Start at the corner where you think the least electronics are available. Slowly guide the tool along the seam, hearing the characteristic clicks of the flex latches.
Don't try to open the whole case right away. Walk around the perimeter first, opening the gap slightly, and then just making sure all the latches are free, you can gently lift the top cover, and inside you'll see the main board and the battery compartment.
| Element | Type of attachment | Tool. | Risk of damage |
|---|---|---|---|
| Side panels | Latches + screws | Plastic spatula | Medium (scratches) |
| Back cover. | Screws (hidden) | Screwdriver PH00 | Low. |
| Dynamics | Glue + screws | Tweezers, spatula. | High (membrane rupture) |
| Battery | Glue tape. | Fryer, sucker. | High (puncture) |
When removing the top panel, be careful with the plumes connecting the control buttons or the indicators to the main board. They can be short and easily break when moving sharply. If the panel is not removed, check if you have forgotten to unscrew any screw in the center.
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The rule of dismantling is, if the part doesn't go, you forgot to unscrew the fastener or you didn't fully snap the latches. Don't use force.
Replacement of the battery and work with the battery
One of the most common reasons for disassembling the Xiaomi Mi Soundbar soundbar is the battery failure. Over time, lithium-polymer batteries lose capacity, and the device stops holding charge or operating autonomously. Replacing requires special care.
The battery is usually in a separate compartment or glued to the bottom of the case, and you need to disconnect the power connector from the board before you remove it, and you need to do this by gently swaying the connector from side to side without pulling the wires.
Use a suction cup or plastic card to remove the old battery, and if the battery is glued to a double-sided tape, preheat the area underneath with a hair dryer, which will soften the glue and allow the element to be removed without deformation.
- 🔋 Disconnect the battery connector from the motherboard before any manipulations.
- 🔋 Do not puncture or bend the battery - it can cause fire.
- 🔋 When installing a new battery, make sure the contacts are clean and securely fixed.
The new battery should have the same voltage and capacity characteristics as the original battery, usually 3.7V or 7.4V depending on the configuration of the cells, and installing the battery with the wrong parameters can cause the power controller to fail.
⚠️ Warning: Never leave a soundbar with a battery drained for long-term storage, resulting in irreversible chemical degradation of the elements inside the battery.
Diagnostics and repair of speakers
If the soundbar is wheezing or the sound is missing in one of the channels, the problem can be hidden in the speakers. Dynamic heads in Xiaomi Mi TV Soundbar are broadband emitters fixed around the perimeter of the body.
To diagnose, you need to "ring" the speaker coils with a multimeter. The resistance must correspond to the declared nominal value (usually 4 Ohms or 8 Ohms). If the device shows one or zero, the speaker is defective and needs to be replaced.
Replacing speakers is often complicated by the fact that they can be glued to the body or mounted on screws that are closed to other elements, and in some cases it is easier to replace the entire speaker than to try to re-glue the diffuser.
When you build, make sure that the polarity of the connection is met. If you mix plus and minus, the speakers will work in antiphase, which will lead to the disappearance of the bass and distortion of the sound. You can check the phasing by connecting the 1.5V battery to the contacts of the speaker - the diffuser must be extended outwards.
Often the cause of wheezing is not a breakdown, but the entry of foreign objects into the body or dust on the membrane. Careful cleaning with a soft brush can return the device to its original sound quality without replacing parts.
Assembly of the device and verification of functionality
The assembly is done in reverse order, but with additional verification of each step. Make sure that all the plumes are in their connectors before clicking. A loosely inserted plume is a common cause of broken buttons after repair.
When you install the screws, don't twist them all the way to the end. First, put all the screws in, then gradually tighten them diagonally, so that the parts of the case fit evenly and eliminate gaps.
Pay special attention to the speaker power cable, which should not be clamped with the case or touch the sharp edges of the board, use insulation tape or shrinkage if necessary to protect the wires.
- 🔌 Check to connect all internal cables before closing the cover.
- 🔌 Make sure that no screw is left over – this is a sign of proper assembly.
- 🔌 Wipe the case with microfiber to remove fingerprints and dust after repairs.
Once you've finished building, connect the soundbar to the network and check it. Test all modes: Bluetooth, optical input, AUX. If the sound is clean and the battery is charging, the repair can be considered a success.
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Use isopropyl alcohol to clean the contacts and remove glue residues, which evaporates quickly and does not conduct current, which is safe for electronics.