Introduction: why you may need to disassemble Xiaomi MDG1
The Xiaomi MDG1 smart speaker (also known as the Mi Smart Speaker>) is a popular device for music playback, smart home control and voice assistant. However, over time, even such a reliable gadget can have problems ranging from the banal (dust in the speakers or a dead battery) to the serious (faulty board or microphones). Most of the time, it requires removing the back cover for diagnosis or repair – but the manufacturer has not provided an obvious way to do this without risk.
Unlike smartphones, where disassembly is often documented, Xiaomi’s smart speakers are more complicated: There are no official instructions, and improper actions can damage latches, break plumes, or even lose warranty. This article will help avoid typical mistakes and conduct disassembly as carefully as possible – whether it is for cleaning, replacing the battery or accessing internal components.
Before you start, consider that if your device is still warranty, you should contact the service center. Self-disassembly will void the warranty obligations of Xiaomi — this is prescribed in the terms of service. If the warranty has expired or you are willing to take a risk, read on.
Preparation for disassembly: tools and precautions
You won’t need professional tools to remove the MDG1 cover, but without proper preparation, the risk of damage increases.
- 🔧 Plastic mediators or shoulder blades (2-3 - for gently putting the lid on. Metal tools can leave scratches.
- 🧲 Suction cup (optional) – will help to lift the lid if the latches are too tight.
- 📸 Smartphone with camera – to fix the location of plumes and screws (useful when reverse-assembling).
- 🧴 Isopropyl alcohol (70%+) – for cleaning contacts if you plan to clean or repair.
- 🔋 Screwdriver T5 – You may need to unscrew the screws under the lid (if you have them in your modification).
Also prepare the workplace:
- 🪑 Work on a flat, stable surface (a table with a soft substrate so as not to scratch the case).
- ⚡ Turn off the power column at least 10 minutes before disassembly, and this will prevent short circuits.
- 🧹 Remove small items from the work area – a lost cog or spring may make it difficult to assemble.
⚠️ Warning: If your Xiaomi MDG1 speaker has been in contact with water or moisture, don't disassemble it immediately.Let the device dry for at least 24 hours in a dry place with rice or silica gel - moisture inside can cause the contacts to corrosion when disassembled.
Design analysis: where are the latches and fasteners
The Xiaomi MDG1 has two parts: a front panel (with speakers and touch buttons) and a back cover (with connectors and mounts), the lid is supported by plastic latches located around the perimeter, and sometimes on two screws under rubber legs (depending on the version of the device).
Exact locations of the latches:
- 🔹 The top (closer to the power connector) is 2 latches.
- 🔹 Side sides (left and right) - 3 latches on each.
- 🔹 The bottom (at the base) is 2 latches, often hidden under a sticker or rubber substrate.
| Fixing zone | Number of latches | Features |
|---|---|---|
| Upper (power connector) | 2 | The most fragile ones break when pressed hard. |
| Left side | 3 | One of the latches can be hidden under a decorative stripe. |
| Right side | 3 | Next to the reset button, be careful, don't press it. |
| Lower (base) | 2 | Often glued to bilateral tape |
Before you start removing the lid, check the case for screws. In some versions of the MDG1 (for example, for the European market), rubber legs or a sticker with a serial number may hide T5 screws. If they are not unscrewed in advance, the lid will not give in and the latches will break.
How to check for screws?
Step-by-step: how to remove the cover without damage
Now, to the most critical stage, follow the instructions strictly by the steps, so as not to damage the latches or plumes:
- Step 1: Turn off the power and prepare the tools. Make sure the speaker is off and disconnected from the socket. Put it down with the touchpad on a soft surface (like a towel).
- Step 2. Check for screws. As described above, check the bottom for screws. If you have any, carefully twist them out with a T5 screwdriver and fold them in a separate place.
- Step 3. Start at the top. Take a plastic pickup and insert it into the gap between the front panel and the back cover at the power connector. Carefully drive the pickup along the edge, trying to separate the latches. Don't put too much effort into it!
- Step 4: Turn the side latches off. Once the top is up, move the mediator to the left side. Smoothly walk around the perimeter, listening to the snaps of the latches that are coming out. If the lid doesn't respond, don't pull it by force, look for the areas that are not.
- Step 5: Remove the lid. When all the latches are free, gently lift the lid with the edges. Be careful, it may have a plume of a speaker or antenna attached to it (depending on the modification). If you feel resistance, make sure you have forgotten the screw or latch.
Power off for more than 10 minutes |
Screws (if any) twisted |
The mediator is inserted at the top |
No sudden movements - only smooth pressure |
The plumes are not stretched when removed-->
If the lid is removed with difficulty, try the following method:
- 🔥 Heat the bottom of the body with a hair dryer (at minimum temperature!) for 1-2 minutes. This will soften the glue if it is used.
- 🧲 Use a suction cup to evenly pull the lid up while the mediator is applied to the latches.
⚠️ Warning: If you hear a crack when you remove the lid, it means that the latch has broken. Stop disassembling, as further action may lead to permanent damage, in which case you should contact the service.
What to do after removing the lid: diagnosis and cleaning
When the lid is finally removed, the inside design of the Xiaomi MDG1 will open before you.
- 🔋 Battery (if portable) – usually located at the bottom.
- 🔊 Speakers and amplifier - can be covered by a metal screen.
- 📡 Board with Wi-Fi/Bluetooth module — often near antenna wires.
- 🎤 Microphones are small circular holes with a grid soldered to a board.
If the purpose of disassembly is cleaning, act as follows:
- Remove dust from speakers and vents with a soft brush or compressed air (canister).
- Wipe the contacts of the battery (if it is removable) with a cotton swab dipped in isopropyl alcohol.
- Check the plumes for oxidation or ruptures, if any, gently sweep with a pin (for contacts) or replace the plume.
For the diagnosis of malfunctions:
- 🔌 If the column does not turn on, check the integrity of the battery (blown, leakage of electrolyte) and the fuse on the board.
- 🔊 If there is no sound, inspect the soldering of the speakers and the integrity of the audio plume.
- 📶 If Wi-Fi is not working, check the antenna cable (it can move away from the connector).
💡
If you removed the cover to replace the battery, before installing the new completely discharge and charge it 1-2 times - this will prolong the service life.
Common Mistakes and How to Avoid Them
Even with careful disassembly, users often make mistakes that lead to breakdowns, and here are the most common ones and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Use of metal tools | Scratches on the body, damage to plumes | Use only plastic mediators. |
| Strong lid press. | Latches break, plastic cracks. | Act smoothly, alternately releasing the latches |
| Ignoring screws under the legs | Broken latches, bent body | Always check for screws before disassembling |
| Dramatic disconnection of plumes | Contact break, broken speakers/microphones | Carefully snap the connectors, do not pull the wires. |
Another common problem is losing screws or springs when you build them, so that you don't have to do that.
- 📦 Stack all small parts in separate containers (e.g., pills).
- 📸 Photograph the original location of each element before you take it.
- 🔍 Use a magnifying glass or flashlight to avoid missing small parts when assembly.
⚠️ Warning: If the Xiaomi MDG1 column fails to turn on or malfunctions after assembly, check: (1) Are all plumes properly connected (they should click when fixing). (2) Are there any foreign objects (screws, pieces of plastic) inside the housing. (3) Are all latches closed - loose fitting of the cover can cause a circuit.
💡
The most common cause of failure after disassembly is an incorrectly connected speaker plume, and always check its fixation before final assembly.
Building a device: how to return everything to place
Building a Xiaomi MDG1 after disassembly is often harder than disassembling. Here is a step-by-step algorithm that will help avoid errors:
- Check all the components. Make sure all the plumes are connected, the screws are in place, and there are no foreign objects inside the case.
- Lay the plumes. Carefully spread them so that they don't overburden or get caught in the latches of the lid.
- Line the lid. Put it on the body, aligning all the slots. Make sure the power connector and buttons match the holes.
- Hold the latches. Start at the bottom and smoothly press the perimeter until you hear the snaps of all the latches. Don't slap the lid with your palm, it can bend it!
- If your model has screws, twist them without undue effort - a pulled screw can crack the plastic.
After assembly:
- 🔌 Connect the column to the power and check if it is turned on.
- 🔊 Test the sound, microphone, and Wi-Fi connection.
- 🔄 If something doesn't work, disassemble the device again and check the plumes and contacts.
If the lid doesn't fit tightly or creaks after assembly, probably one of the latches has broken.
- 🔧 Use bilateral tape for fixation (temporary solution).
- 🛠 Replace the cover (it can be ordered on AliExpress or at service centers).