Smart tech owners often face the need to deep clean the device or replace worn-out components. Xiaomi Mijia Robot Vacuum G1 (also known as STYTJ01YM) has proven to be a reliable assistant, but over time requires maintenance. Disassembly of the case may be required if water gets inside, large debris is stuck or the battery fails.
Self-interference with the design of a device is always fraught with risks, so it is important to act consistently and carefully. Mishandling plumes or plastic latches can lead to electronics failure or leakage. In this article, we will discuss in detail the process of dismantling the main components of the robot vacuum cleaner.
Before any work begins, make sure that the device is completely switched off and disconnected from the charging station. This is a basic safety rule, ignoring which can lead to a short circuit. Also prepare the workplace: the desk should be clean, well-lit and free of unnecessary objects.
Tools and workplace preparation
You can't disassemble well without the right tool. The G1 doesn't require complex industrial equipment, but using the wrong items can damage the screws or the body. You'll need a set of precision screwdrivers, particularly a PH1 or PH0 cross.
Plastic body elements are often attached to latches that are easy to break with metal tools. So be sure to use plastic mediators or special blades to open. Metal blades will leave scratches and can damage internal cables.
Organize space for small parts. Robot screws can be long even within a single node, and to confuse them means to risk breaking the fee when you build them. It is recommended to use a magnetic mat or a container with cells.
☑️ Disassembly tools
Don't forget the light source. It's dark inside the case, and without a good lamp or headlamp, you can't see a thin plume or a microscopic connector, and you should also have a soft brush to remove dust during operation.
Initial inspection and dismantling of external elements
The process starts with exploring the bottom of the device, and that's where the main access points to the insides are located. Turn the Xiaomi G1 robot vacuum cleaner upside down, removing the side brushes and emptying the dust collector.
First of all, you need to remove the main brush. To do this, bend the locks off the ends and remove the shaft. Under it, often there is a wool accumulation that needs to be removed. Next, pay attention to the wheels: sometimes they require partial disassembly, but most often it is enough to remove the locking rings.
⚠️ Warning: Never pull the wires of sensors or wheels by force. All connections inside are fragile, and excessive force will lead to the break of contacts, the restoration of which will require soldering.
The main body is held on screws hidden under decorative elements or rubber linings. In the G1 model, the screws can be positioned under the bumper. Carefully remove the front bumper by pulling it upwards to access the hidden screws.
Unscrew all the visible screws on the bottom panel. The number can vary depending on the revision of the device, but usually there are about 6-8 pieces. fold them in a separate container and note that they belong to the bottom cover.
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Take a picture of the screws before you unscrew them, and this will help you remember which screw to twist when you reverse assemble them, especially if they are of different lengths.
Removal of the upper cover and access to the battery
Once the lower screws are removed, you can start separating the shells. The top cover of the Xiaomi G1 is fixed around the perimeter with plastic latches. Use a plastic blade to gently walk along the junction between the top and bottom.
Go around in a circle, gradually snapping the locks. Don't rush to tear the lid off, as it can be approached by plumes from control buttons or indicators. In this model, the buttons are often integrated into the top panel.
When the lid is lifted, you'll see the main battery pack. The G1 battery is a multi-cell unit connected to the motherboard via a connector. The connector must be turned off to replace it or inspect it.
Power outage is a critical step, and before you touch any other components, disconnect the battery plume, and this will protect the electronics from accidentally being pulled over by the tool.
| Component | Location. | Type of attachment | Risk of damage |
|---|---|---|---|
| Battery | Central part | Screws + connector | Tall (chemistry) |
| Turbine | Over the dust collector | Screws + plume | Medium (fragility) |
| Wheels. | Bottom panel. | Screws + connector | Low. |
| Maternity fee | Upper level | Lots of screws. | critical |
Dismantling of turbine and suction system
One of the most common causes of disassembly is contamination or turbine failure. The suction engine in the Xiaomi G1 is located directly above the dust collector compartment. To get to it, you often need to remove the top of the body completely.
The turbine is attached with a few screws to the plastic frame, and when you unscrew them, you gently lift the assembly, and you notice the corrugated tube that connects the turbine to the dust collector, and you have to disconnect it to take the engine out completely.
Fine dust can accumulate inside the turbine, causing imbalance and noise. Clean the blades with a soft brush. If the engine is rattling or humming even without a load, the bearings may have worn out and need to be replaced.
When installing a new or cleaned turbine, make sure the pipe fits tightly. Any leaky suction system will cause the cleaning power to drop and the engine to overheat.
Signs of turbine failure
Working with motherboard and sensors
The motherboard is the robot's brain, and in the G1, it's located at the top of the body, and it's accessible after the decorative lid is removed and the protection is removed.
The board is fixed with a lot of screws. Before you unscrew them, make sure that all the plumes from the battery, the turbine, the wheels and the sensors are turned off, and remember or photograph the location of each connector.
Pay special attention to sensors. The Xiaomi G1 uses a navigation system that depends on the purity of the sensors, the drop sensor and the collision sensor are located around the perimeter, you can gently wipe them with alcohol, but you don't need to remove them unnecessarily.
⚠️ Attention: Static electricity is dangerous to electronics. Before touching the board, touch a grounded metal object or use an antistatic bracelet.
If the board shows signs of oxidation (for example, after water is ingested), clean them with alcohol and a soft brush. However, if the oxidation is deep, professional repair or replacement of the board may be necessary.
Wheel and side brush maintenance
The wheels of the robot vacuum cleaner are the most heavily loaded, and they wind hair and thread, which leads to a jamming, and you often have to remove the wheels to clean the wheel deeply.
The wheel is screwed to the bottom panel, and once the screws are unscrewed, the wheel module is removed with the motor, clean the axle of the hair that has wound, and check the free ride of the wheel, which should rotate easily.
The side brush may also require attention, and the rotation mechanism is under the top cover, and if the brush is not spinning, check the gears of the gearbox, which are plastic and can break if hard objects hit.
When assembly, make sure that the wires from the wheel motors are not clamped by the body, a common error that causes the wire to break after several cycles of operation.
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Regular cleaning of the wheel axles prolongs the life of gear motors by 2-3 times and prevents navigation errors of the robot.
Assembly and initial launch
The assembly is done in reverse order. Start by installing the motherboard and connecting all the plumes. Make sure that each connector snaps to a characteristic click.
Set the turbine and check the density of the pipes, secure the top cover by snapping all the locks around the perimeter, and then screw the bottom panel with screws.
The last step is to install the battery, plug the battery connector into the board, and at that point, the robot can beep, or light up the lights, which is normal.
Turn on the power button. Check all the systems: brush rotation, turbine operation, wheel movement. If everything is working correctly, you can run a test cleaning.