Disassembly Xiaomi Mijia M365: Complete guide with photos, schemes and expert advice

Electric scooter Xiaomi Mijia M365 β€” It's one of the most popular and maintainable devices in its class, but disassembling it requires care and nuance: if you don't properly dismantle it, you can damage the control board, the battery, or even the body. This instruction will help to avoid typical mistakes and to carry out disassembly without consequences – whether it is a change of wheel, repair of brakes or diagnostics of electronics.

Many owners are faced with the need to disassemble M365 After falling, after wear and tear of parts, or just for preventive maintenance, like changing bearings or cleaning the controller, you can make a scooter much longer, but before you start screwdrivers, you have to understand the Mijia design. M365 It has its own pitfalls, for example, if you turn off the battery incorrectly, you can short circuit, and if you take the caps off excessively, you can crack the plastic.

In this guide, we will discuss:

  • πŸ”§ Required tools and their analogues (what to replace if there are no specialized devices).
  • πŸ“‹ Step-by-step disassembling photos of key stages and warnings about risks.
  • ⚑ Electrical work: how to safely turn off the battery and not burn the board.
  • πŸ”„ Building and Testing After Repair – What to Check First.
πŸ“Š Why do you understand Xiaomi Mijia? M365?
Repairs after the fall
Battery replacement
Bearing maintenance
Modding (tuning)
Other

1. Disassembly preparation: safety tools and measures

Before you start, make sure you have everything you need.Miljia's minimum disassembly toolkit M365 include:

  • πŸ”© Cross screwdriver (PH2) β€” corpus.
  • πŸ”§ torks T20 β€” for steering column anchorages and some internal parts.
  • πŸ—οΈ Plastic mediator or spatula - for careful opening of latches.
  • πŸ”‹ Multimeter – to check the battery voltage (optional, but recommended).
  • 🧀 Nitrile gloves - protection from dirt and accidental circuits.

If there are no specialized tools at hand, some screws can be twisted with a suitable bit (for example, instead of Torx). T20 occasionally T15 It's a little bit more accurate, or even a flat screwdriver, but it's risky! But for the battery compartment and the controller, it's better to use precise tools -- a mistake can be costly.

⚠️ Warning: Never disassemble Mijia M365 Even if the scooter is off, the capacitors in the control board can keep the charge).

Also prepare the workplace:

  • πŸ“Έ Take a photo of the scooter from all sides before disassembly - this will help with the assembly.
  • 🧹 Work on a clean surface (preferably on a table with a soft substrate).
  • πŸ“¦ Use the screw containers - in M365 There are many of them and they are easily lost.

πŸ’‘

If the screws are boiling or not twisted, moisten them. WD-40 Or kerosene for 10 to 15 minutes. Don't use excessive force, it can break the slime!

Removal of wheels and steering column: step-by-step instructions

So, starting with the wheels being dismantled, which is the simplest step that is often required to replace tires or bearings.

  1. Turn the scooter upside down (it is better to put on a soft stand, so as not to scratch the steering wheel).
  2. Remove the lids from the axis (they are attached to the latches - put them in a plastic spatula).
  3. Unscrew the axle nuts by a key of 10 mm (it will require effort, since they are tightened strongly).
  4. Remove the wheel along with the brake disc (if any). For the front wheel, you may need to remove the shock fork (4 Torx screws). T20).

For steering column:

  1. Unscrew 2 screws of the steering wheel mount (they are hidden under rubber plugs).
  2. Carefully remove the steering wheel, pulling it up - it sits on a slate connection.
  3. If the steering wheel is not removed, check if there is a locking screw inside (sometimes it is hidden under the sticker).

⚠️ Warning: When removing the rear wheel, do not pull the motor wires - they are fragile and can come off the board! It is better to first disconnect the motor connector (it is under the battery compartment cover).

How to remove the brake disc if it is stuck?
If the disc is not removed from the axis, spray it with penetrating lubricant and gently knock through a wooden slot. Don't use a metal hammer - it deforms the disk!

Disassembly of the body: access to battery and electronics

The Xiaomi Mijia case M365 It's made up of two halves, screws and latches:

  1. Unscrew all visible screws on the bottom of the case (there are 8-10 pieces, depending on the modification).
  2. Carefully separate the halves, starting at the back (there are fewer latches). Use a plastic blade to avoid breaking the clips.
  3. Disconnect the battery and motor connectors. They're usually marked in white or red -- remember where they are.

Inside the building you will see:

  • πŸ”‹ Battery (36V, 7800 mAh – the heaviest element.
  • πŸ–₯️ Control board (controller) - scooter brain.
  • πŸ”Œ Engine, display and brake connectors - they are easy to confuse when assembled.

Critically important: before disconnecting the battery, check with a multimeter that there is no voltage at the terminals (sometimes the residual current can damage the board when accidentally circuitd).

β˜‘οΈ Check before battery disconnection

Done: 0 / 4
ElementNumber of screwsType of screwdriver.Notes
Bottom lid of the hull8–10Cross (PH2)One screw is hidden under a sticker
Battery compartment4Torx T20Turn off the connector before you take off!
Management fee3Cross (PH1)Don't pull the wires - they're soldered
The wheel2Torx T20Rubber-stamped screws

4. Dismantling of battery and control board

Mijia battery M365 β€” This is the most dangerous element in disassembly, mishandling can lead to fire or explosion:

  1. Disconnect the battery connector from the control board (usually it is black with a red wire).
  2. Unscrew 4 battery mount screws (Torx) T20).
  3. Carefully remove the battery by pulling the plastic handle (do not take the wires!).

The control board is attached to 3 screws.

  • πŸ“Œ Remember the location of the connectors (take a picture or mark with a marker).
  • πŸ”§ Don’t lose small washers under the screws – they are needed for grounding.
  • 🚫 Do not touch the board elements with your bare hands - static electricity can damage the chips.

⚠️ Warning: If you notice swollen capacitors or traces of oxidation on the board, do not turn on the scooter until they are replaced.

πŸ’‘

Xiaomi battery M365 protection system (BMS), But it won't short if you don't handle it properly. Always keep it in a non-combustible container!

5. Typical Disassembly Problems and How to Avoid Them

Even experienced craftsmen face difficulties in disassembling Mijia M365. Here are the most common mistakes and ways to prevent them:

  • πŸ”§ Thrown screws - use high-quality screwdrivers and do not apply excessive force. WD-40.
  • πŸ”Œ Mixed connectors -- always take pictures of them before you disconnect!
  • πŸ’₯ Short circuit - never put the battery on a metal surface. Use a dielectric mat.
  • πŸ”Š Damaged hull latches -- don't use metal tools to open. Only plastic pickers!

Another common problem is the jammed bearings in the wheels, and if the wheel doesn't rotate smoothly, don't try to rock it with force.

  1. Remove the wheel (as described above).
  2. Remove the bearings with a removable or gently knock them out through the mandrel.
  3. Clean and lubricate bearings (use lithium lubricant, not lithium lubricant) WD-40!).

If the scooter is not activated after assembly:

  • πŸ”‹ Check the battery connection (the connector should sit tightly).
  • πŸ–₯️ Make sure all the plugs on the board are connected correctly.
  • πŸ”Œ Check the fuse (it is located next to the battery).

6.Assembly and test after repair

Assembling Xiaomi Mijia M365 It should be in reverse order, but taking into account a few nuances:

  • πŸ”© Tighten the screws cross-cross to avoid distortions of the body.
  • πŸ”Œ Check the connectors for the reliability of the fixation (they must click).
  • πŸŽ›οΈ Calibrate the brakes after assembly (instruction in the user manual).

Before first inclusion:

  1. Make sure nothing is forgotten inside the enclosure (screws, tools).
  2. Check the steering wheel - it should rotate smoothly, without backlash.
  3. Turn on the scooter and test all the functions: gas, brake, backlight, Bluetooth.

⚠️ Warning: If the scooter twitches when moving or does not gain speed after assembly, check: Connect the motor connector (it could have moved away), condition of the motor brushes (they could have worn out), settings in the Mi Home application (sometimes calibration is lost).

If everything is working normally, make a test run at low speed, checking:

  • πŸ›‘ Brake performance.
  • πŸ”Š Absence of extraneous noises (squeaking, knocking).
  • πŸ“Ά Stability of communication with the remote (if any).

πŸ’‘

After any repair of electronics (board, battery) the first 2-3 races should be short – this will help to identify hidden problems to serious breakdown.

7.Modding and upgrades: what can be improved in M365

Disassembling Xiaomi Mijia M365, Many owners decide to upgrade it:

  • πŸ”‹ A larger battery (e.g. 10–13 Ah instead of the standard 7.8 Ah) will increase the range to 40–50 km.
  • πŸ›ž Tread tyres (e.g, CST or Kenda) for better grip on wet roads.
  • πŸ”Š Reinforced shock absorbers (for example, from M365 Pro) for comfortable riding on irregularities.
  • πŸ’‘ LED-Lighting under the deck – improves visibility in the dark.

When upgrading the battery, remember:

  • πŸ”Œ The control board should support increased voltage (standard designed for the 36V).
  • πŸ”‹ The weight of the scooter will increase by 1-2 kg, which will affect maneuverability.
  • ⚑ The charger must match the new battery (usually required) 42V or 48V).

Replacement of the tyre will require:

  1. Remove the wheel (as described above).
  2. Carefully tamper with the sides of the tires with mounting blades.
  3. Install a new tire starting on the opposite side of the nipple.
  4. Pump the wheel to 40-50 pressure PSI (manometer).

Warning: If you install a motor with higher power (e.g., from a M365 Pro, make sure the control board can withstand the load, otherwise it could burn.

FAQ: Frequent questions about the Xiaomi Mijia disassembly M365

❓ How to remove the rear wheel if the nut is boiled?
If the nut of the rear wheel axis does not unscrew: Spray it with penetrating lubricant (for example, WD-40 Wait 10-15 minutes. Use a key extension cord (lever will help move the nut from the spot); if it doesn't help, gently tap the key with a hammer (not a nut!) Don't use a gas key, it will damage the nut edges.
❓ Can we make out? M365 toolless?
Yes, but with reservations: instead of Torx T20 You can use a suitable flat screwdriver, but the risk of screws being ripped is high. You can use a plastic card to open the case instead of a mediator. You can't check the battery without a multimeter, it's dangerous! If you're not sure, you'd better buy a scooter repair kit (costs a lot). ~500–1000 β‚½).
❓ What to do if the scooter does not turn on after assembly?
Check in order: Battery: is the connector tightly connected? Check the voltage with a multimeter (should be) ~36V). Safety: it is near the battery (sometimes burns out with KZ). Control fee: is there any visual damage (blackened cells, bloated capacitors)? On button: sometimes it sticks or the contact goes away. If nothing helps, perhaps the controller burned down – you will need a diagnosis in the service.
❓ How often should the bearings be serviced?
Recommended frequency: Every 500 to 1,000 km, bearing cleaning and lubrication; every 2,000 km, bearing replacement (if there is backlash or noise); Signs of wear and tear: πŸ”Š Screaming or hum when the wheel is rotated. πŸ›ž Luft wheels (checked by swaying in different directions) Use lubricant for high-speed bearings (for example, SKF LGHP 2).
❓ Can I wash the scooter after disassembly?
Yeah, but with caution: 🚿 Do not wash under the stream of water - only with a wet cloth. πŸ”Œ Avoid getting water on connectors and boards. πŸ”‹ Clean the battery with a dry wipe (moisture can cause corrosion). After washing, dry the scooter 1-2 hours before assembly.