Xiaomi’s modern smart home gadgets are pleasing with their design and functionality, but even reliable devices sometimes have operational problems. Xiaomi Mijia Automatic Soap Dispenser is no exception: over time, the nose can clog and the motion sensor can start working incorrectly. In such situations, owners often wonder whether it is possible to disassemble the device for cleaning or repair without damaging it.
Disassembling this device requires a certain amount of precision and understanding of the design, since the manufacturer does not provide easy access to the internal components for the average user. The main difficulty is hidden fasteners and using adhesives to provide moisture protection. However, with the right sequence of actions and the necessary tools, you can successfully dismantle the case.
In this article, we will look at the disassembly process in detail, identify hidden screws and explain how to safely access the pump system and electronic board. Remember that any interference with the design of the device can lead to a loss of warranty, so weigh all the risks before starting work.
Workplace preparation and necessary tools
Before you start dismantling, you need to prepare your workspace, you need a clean, well-lit surface, covered with soft material, so you don't scratch the glossy plastic of the case, and the absence of dust and moisture is critical, because there are sensitive electronic components inside.
You'll need a standard set of home craftsmen to work with, based on a set of precision screwdrivers, specifically a cross screwdriver (PH00 or PH0) and a flat one, and a mediation blade or a thin plastic card to open the latches.
- 🔧 Set of screwdrivers (cross and flat)
- 🧰 Plastic blade for opening the body
- 🔦 Lighting for the internal elements
- 🧤 Tweezers with dielectric sponges
Pay special attention to the choice of screwdriver. Too much sting can break the screws, which will make further assembly impossible. If you have a hairdryer at hand, it can be useful for softening the adhesive joints, but you need to use it with extreme caution to avoid melting the plastic.
Dismantling the external container and searching for hidden fasteners
The first step is always to remove the soap tank. In Xiaomi Mijia models, the bulb is attached with magnets or a tight fit, so just pull it down. Once the container is removed, you will see the bottom of the device, where the basic mounting elements are usually hidden.
Carefully inspect the bottom pad, and often you can see a decorative cap or rubber leg underneath which the screw is hiding. In some versions, the screws can be hidden under a logo sticker or specifications. Carefully tuck the edge of the sticker with a blade to check for the fastener.
⚠️ Warning: Do not attempt to force the sticker or rubber leg off without first heating.The adhesive can be very strong and a sharp movement will cause the material to rupture, which will violate the tightness during assembly.
Once you've found and unscrewed all the visible screws, take your time to disassemble the case further. Make sure you find all the attachment points. Sometimes a single screw can be located deeper in the niche or hidden by the structural elements of the platform. Using a magnetic screwdriver will help you extract the fastener without dropping it inside the case.
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Before removing any elements, take a photo of the location of the screws and their sizes - this will help not to confuse anything when the device is reverse assembled.
Opening of the main body and work with latches
When all the screws are removed, the most important step is to separate the halves of the body, and the dispenser is designed with a system of internal plastic latches that provide monolithicity and spray protection. To snap them, you need to use a plastic blade, inserting it into the joint between the top and bottom.
Move around the perimeter of the device, sequentially snapping the locks. You will hear the characteristic click when you release each latch. Do not use excessive force: if the body does not diverge, then there is an untwisted screw somewhere, or you missed a hidden latch. Xiaomi plastic is strong enough, but if you do not apply it correctly, it can crack.
Inside, you'll see the main board and the power supply, and it's important to immediately assess the condition of the plumes and the wires, they can be connected to the board through connectors or soldered, and if the wires are soldered, you need to be very careful when you separate the halves of the case completely so that you don't damage the soldering.
☑️ Procedure for opening the hull
Access to the pump system and feed mechanism
The central element of the dispenser is the peristaltic pump, which is the one that delivers soap through the tube, and when you disassemble, you get direct access to this unit, and often the dosing problems are related to contamination of the pump rollers or the soap in the pipes.
To clean the mechanism, you need to carefully disconnect the silicone tube, be prepared for the fact that there may be residues of soapy liquid inside, it is recommended to prepare wipes or a container for draining residues in advance, the pump mechanism is usually attached to the inner frame with screws or plastic locks.
- 💧 Disconnect the silicone hose from the pump
- 🌀 Remove the cover of the pump module (if provided)
- 🧼 Rinse rollers and hose with warm water
- 🔍 Check the elasticity of the tube for cracks
If you find that the tube has lost elasticity or has microcracks, it's better to replace it. Old rubber can collapse under the pressure of rollers, which leads to a decrease in productivity or a complete cessation of fluid supply. You can replace the hose with a similar in diameter, bought at the radio parts store.