Modern electric razors from Chinese giant Xiaomi are famous for their minimalist design and high efficiency of shaving. However, like any gadget, they require regular maintenance to maintain the sharpness of the blades and hygiene of use. Often users are faced with the need to deep clean the mechanism of accumulated bristles or replace blunted knife blocks, which can not be done without partial disassembly of the body.
The question of how to disassemble a Xiaomi Mijia or Enchen razor is not only for enthusiasts, but also for ordinary users who want to extend the life of their favorite device. Wrong actions can damage the moisture protection or break plastic latches, so it is important to understand the internal design of the device. In this article, we will look at the process of dismantling various models of electric razors, paying special attention to hidden screws and fragile elements.
Before you start active actions, you need to prepare the workplace and make sure that the necessary tools are available. dismantling Xiaomi equipment often requires a specific approach, as the company’s engineers strive to maximize the tightness of the case. Careful study of the sequence of steps will help avoid typical errors and maintain the warranty if it has not expired.
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Always completely discharge the battery before disassembling the electronics to minimize the risk of short circuit in case of accidental damage to the contacts.
Tools and workplace preparation required
The quality disassembly of any electronics begins with the right tooling. To work with compact personal care devices such as rotary or mesh razors, a standard set of screwdrivers may not be enough. You will need a set of precision screwdrivers, including the PH00 cross and PH0, as well as flat scissors for snapping the case.
Special attention should be paid to plastic mediators or thin metal blades, which often come with kits for repairing smartphones, they are necessary for tidy opening the case without damaging the glossy surfaces, and be sure to prepare a container with a magnetic lid or trays with cells for sorting screws, as their sizes can vary even within the same device.
- 🔧 A set of precision screwdrivers (cross and flat).
- 🛠️ Plastic mediators and metal spatula.
- 🧲 Magnetic tray for screw sorting.
- 🧤 Antistatic gloves and tweezers with thin tips.
The workspace should be well lit so you can see the fine details and the screw markings. It is recommended to use an adjustable angle lamp or headlamp to make light fall directly on the work area. Desktop cleanliness is also important, as a lost microscopic cog can cause the device to be unable to be reassembled.
☑️ Preparation for disassembly
Anatomy of Xiaomi razors: the differences between Mijia and Enchen models
Xiaomi’s range of electric shavers is quite extensive and includes devices under the Mijia, Enchen and Soocas brands. Despite the similarities, the design features of different models can differ significantly. For example, the popular Mijia Electric Shaver S500 series models have a modular design, while more budget versions are often assembled using ultrasonic welding or hidden latches.
The main difference is the way the knife unit is attached and the internal components are accessed. In most modern models, the head is removed by simply turning counterclockwise or pressing a special lock. However, the internal screws can be hidden under decorative linings, rubber plugs or even under a layer of glue, which requires special care when dismantling.
| Model | Type of knife | Head attachment | Waterproofing |
|---|---|---|---|
| Mijia S500 | Rotary (3) | Turning Castle | IPX7 |
| Enchen BlackStone | Rotary (3) | Latchers | IPX6 |
| Mijia S300 | Rotary (3) | Magnetic module | IPX7 |
| Enchen Hummer | Rotary (2) | On the screws. | IPX5 |
Understanding the type of device you have helps you predict where fasteners might be located. Modular design makes it easier to repair, allowing you to replace entire units, while monolithic housings require more in-depth intervention. Always check with a visual inspection of a particular model before applying the effort.
The secret of the durability of knives
Dismantling of removable knife block and net
The first step in disassembling is always to remove the outer working part of the device. In most cases, it does not require a tool, just perform certain manipulations of the hands. If your Xiaomi razor head is fixed by a rotating mechanism, turn the frame counterclockwise until the characteristic click or release of the locks.
Once you remove the outer frame, you will have access to the knives themselves and the pressing spring. Be careful: the internal parts may fall out if you flip the device over, carefully remove the knife block with the plastic base, and put it away to safety, and cleaning this area often solves problems with vibration and noise.
⚠️ Warning: Never use sharp metal objects to pick inside a removable unit so as not to damage the thin mesh or cutting edges.
Some models are equipped with magnetic fasteners that make it easier to replace, but require careful storage of removed parts. If you plan to deep clean, wash the removed unit under a stream of warm water using a soft detergent, making sure that this is allowed by the instructions.
Opening of the main body and access to the battery
If you need to change the battery or repair the engine, you have to go further and open the main body. Often the screws that hold the halves of the body together are hidden under a decorative insert at the bottom of the device or under the rubber plug of the charging port. Use a thin needle or scalpel blade to gently tuck these elements.
Once all the visible screws have been unscrewed, the body can remain connected by plastic latches around the perimeter, in which case you need to use a plastic mediator, running it along the seam and gradually breaking the locks. Don't use excessive force, the plastic in these devices can be quite brittle and prone to cracking.
- 🔍 Carefully inspect the perimeter for the presence of hidden screws.
- 🔌 Check the area around. USB-port-stamp.
- 🧩 Use a warm-up hair dryer if parts are planted on glue (rarely).
- 👐 Act slowly, listening to the sound of breaking latches.
Inside, you'll find a lithium-ion battery, a control board, and a vibrator. Xiaomi's razor battery usually doesn't have a connector and is soldered directly to the board, making it harder to replace it. It may require contact brazing to retrieve the battery, so without soldering skills, it's better to limit yourself to external cleaning.
Replacement of knives and maintenance of the cutting mechanism
The main reason for disassembling the razor is blunting of the blades. The life of the knife unit in Xiaomi devices is an average of 12 months with regular use. Signs of wear are pulling hairs instead of cutting, increased motor noise and heating the head during shaving.
To replace the old unit, you have to completely dismantle the old unit. In some models, the knives are held on plastic rails, in others, they are fixed with screws. When installing a new set, it is important to correctly combine the slats and make sure that the knives rotate freely after assembly. After replacement, you do not need lubrication of the mechanism, since modern materials work in dry.
⚠️ Warning: Do not try to sharpen disposable blades yourself - this will disrupt the geometry of the cutting edge and can lead to skin cuts.
Once you have the new components installed, put the device back together and run a test run, and if the motor is humming smoothly and the vibration is uniform, the procedure has been successful, and regular replacement of knives is a key factor in ensuring that shaving is hygienic and skin is not irritated.
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Timely replacement of the knife unit prolongs the life of the engine, as worn blades create increased resistance, forcing the motor to work with overload.
Assembly of the device and checking leakage
The final step is to assemble all the components into a single unit, make sure that all the screws are twisted with the same force, but without a drag, which can break the thread in the plastic case, pay special attention to rubber seals around the switch button and at the docking places of the halves of the case.
If you've removed the sealing rings, check their integrity and replace them with new ones if necessary or lubricate them with silicone lubricant to restore elasticity. IPX7, tap-washing.
Once assembled, visualize the gaps between the parts, they should be uniform throughout the perimeter, turn on the device and check all modes of operation, if the razor is working properly, you can consider the repair or maintenance completed.