Xiaomi Bluetooth Speaker 2 Disassembly Step-by-step guide with photos and tips

Xiaomi Bluetooth Speaker 2

Disassembling a Bluetooth speaker is not an easy task: the manufacturer uses hidden latches, glue and non-standard screws to prevent unauthorized access. Without the right instructions, the risk of damage to the body or internal components is extremely high. In this article, we will discuss in detail the process of disassembling the Xiaomi Bluetooth Speaker 2, list the necessary tools and warn of typical errors.

If you have never understood electronics, we recommend that you first familiarize yourself with frequent questions at the end of the article - there are answers to the most critical points.

Preparation for disassembly: tools and security measures

Before you start disassembling, make sure you have everything you need, and that you don't have at least one tool that can damage the body or the internal components, and here's the full list:

• 🔧 Plastic mediators or shoulder blades (2-3 (S) to remove the stainless stains.
• ⚒️ The screwdriver. T5 or T6 — for screws inside the housing (size depends on the modification of the column).
• 🔥 Dryer or thermo-air station - if the body is glued (heating to 60-80 is required)°C).
• 🧲 Magnetic mat or container – to avoid losing small details.
• 📸 Smartphone for photography – capture each step so as not to confuse the order of the assembly.

Also, prepare the workplace: the desk should be clean, free of debris and metal objects. The use of metal screwdrivers to separate latches is strictly prohibited, this will lead to chipping of plastic and damage to sealing gums. If you do not have plastic mediators, they can be replaced with guitar mediators or bank cards (but with caution).

⚠️ Warning: Do not disassemble the column if it has been submerged in water or has been severely impacted.In such cases, the internal components may be damaged, and disassembly without special skills will only aggravate the problem.

Before starting work, completely discharge the column (if it still turns on) or disconnect it from charging for 24 hours, which minimizes the risk of short circuit in case of accidental contact with the board.

Step 1: Removing the back cover and accessing the insides

The Xiaomi Bluetooth Speaker 2 body consists of two parts: the front (with speakers) and the rear (with buttons and connectors). Disassembly begins with the removal of the back cover, which is attached to the latches and glue (depending on the batch).

1. Find a gap between the parts of the case, usually located near the Micro-USB connector or the power button, insert a plastic mediator into the slot and gently swipe it around the perimeter, trying to separate the latches.
2. If the lid doesn't respond, don't try to tear it off, it's probably glued, in which case heat the body with a hair dryer (60-80°C) for 1-2 minutes, then try again.
3. Remove the lid. Once the latches are disconnected, gently lift the back, don't pull it sharply, because the wires may be soldered to the board inside.

If you hear the characteristic crackling when you remove the lid, it's normal, the adhesive joints break, but if the cracking is accompanied by a deformation of the plastic, then you're putting too much effort into it.

Check availability of all tools |

Turn off the power column for 24 hours |

Prepare a magnetic screw mat |

Take a picture of the original column state-->

Under the lid, you'll see:

• 🔋 Battery (usually at 1200-1500 mAh).
• 📱 Printed circuit board with chips and connectors.
• 🔊 Dynamics (in this model there are two of them: high-frequency and low-frequency).
• 📶 Bluetooth antenna (thin wire running from the board to the top of the case).

⚠️ Warning: Don't touch battery contacts with your bare hands - static electricity can damage the board. Use an antistatic bracelet or at least touch a grounded metal object before work.

Step 2: Unconnect the battery and board

When the lid is removed, the first thing you need to do is turn off the battery. In Xiaomi Bluetooth Speaker 2, it is usually soldered to the board with two wires: red (+) and black (−).

1. Take a soldering iron with a thin sting (power 20-30 watts) and heat the contacts of the battery. Do not overheat - 2-3 seconds are enough for the solder to melt.
2. Carefully tweez the wires and unplug them from the board. Remember or take a picture of the polarity!
3. Insulate the battery contacts with a piece of tape to avoid accidental circuit.

If you can't solder, you can try to disconnect the battery without a soldering iron by gently putting a knife on the wire, but it's risky, because you're likely to damage the tracks on the board.

Next, you need to unscrew the board from the case. It is usually mounted on 3-4 screws (size T5 or T6). After removing the screws, carefully raise the board - it can be connected to the speakers and the antenna with thin wires. Don't pull it sharply!

💡

If the screws don’t unscrew, don’t put too much force on it – try dripping a little WD-40 or alcohol on the thread and wait 5 minutes.

Step 3: Disassemble the speakers and check integrity

The speakers in Xiaomi Bluetooth Speaker 2 are the most vulnerable, and they can fail due to moisture, mechanical damage or wear and tear, to remove them:

1. Look at the mount. Usually the speakers are fixed to the latches or glue. If they're taped, heat the body with a hairdryer (as when you remove the lid).
2. Carefully put a plastic shoulder blade on the speaker. Start at the corner, gradually moving around the perimeter. Don't use metal tools!
3. Check the membrane's integrity. If it's torn or deformed, the speaker needs to be replaced.

Typical problems with speakers:

• 🔇 No sound – check soldered contacts on the board.
• 🎵 Distortions at high frequencies - a rupture of the membrane is possible.
• 💧 Wheezing or gurgling - getting moisture under the membrane.

If the speaker is externally intact but the sound is missing, the problem may be in the audio amplifier on the board, in which case you will need to diagnose with a multimeter or replace the chip.

Step 4: Diagnostics and repairs of the fee

Xiaomi's Bluetooth Speaker 2 board contains all the critical components: Bluetooth module, audio amplifier, charging controller and power chip. If the speaker is not turned on or not charged, the problem is likely here.

The most frequent malfunctions:

• 🔌 Charging doesn’t work – check the circuit from Micro-USB to the controller (usually a chip). TP4056 or similar).
• 📶 Not connected via Bluetooth – inspect the antenna and soldered contacts of the module (often this is the case). BCM43438 or CSR8645).
• ⚡ Spontaneous reboots - possible failure of capacitors or voltage stabilizer.

For diagnosis, you will need:

• Multimeter (chain vertebrating).
• loope USB-microscope (to inspect the tracks).
• A soldering iron with a thin sting (for soldering components).

If you don’t have experience with a soldering iron, don’t try to replace the chips yourself – this requires special skills, in which case it is better to contact the service or buy a new board (it can be found on AliExpress for “Xiaomi Bluetooth Speaker 2 mainboard”).

⚠️ Note: When changing the board, make sure that the new version is compatible with your speaker modification.

Step 5: Assembly of the column after repair

The Xiaomi Bluetooth Speaker 2 should be built in reverse order, and here are the key points to consider:

1. Check all the connectors. Make sure the speaker wires and antennas are tightly connected to the board.
2. Hold the battery. If it's soldered off, solder it back polarly, and the alternative is to use connectors (but it's less reliable).
3. Lay the wires neatly. They should not bend or touch the speakers - this can cause vibrations or short circuit.
4. Close the lid. Make sure all latches are in place. If the case has been glued, use double-sided tape or B-7000 glue.

After assembly, perform the test:

1. Connect the column to the charger and check the indication.
2. Turn it on and try to connect via Bluetooth.
3. Test the sound at different frequencies (use test tracks with bass and high notes).

If the column doesn't work after assembly, don't panic. Take it apart and check:

• 🔌 Correct battery connection (polarity!).
• 🎧 Integrity of speaker wires.
• 📶 The quality of Bluetooth antenna soldering.

Common Mistakes and How to Avoid Them

Even experienced wizards sometimes make mistakes when disassembling Xiaomi Bluetooth Speaker 2. Here are the most common of them and ways to prevent them:

Another common problem is the loss of screws or springs during disassembly. To avoid this, use a magnetic mat or a container of cells. If the screw is lost, do not replace it with the first one you find, which can damage the board when you tighten.

If you're in doubt, check out the Xiaomi Bluetooth Speaker 2 video tutorials on YouTube, and the visual guide will help you avoid many mistakes, such as Xiaomi Repair's regular, detailed guides to repairing the brand's equipment.

FAQ: Frequent questions about the dismantling of Xiaomi Bluetooth Speaker 2