Assembly of electric scooter Xiaomi 1S: Complete guide from unpacking to first launch

Introduction: Why collect a scooter yourself?

Electric scooter Xiaomi Mijia M365 1S It comes in disassembled form, which is standard practice for most models to reduce the risk of damage during transportation, and many users are afraid to assemble equipment with their own hands, fearing breaking fragile parts or connecting electronics incorrectly. The build process is actually simple if you follow a logical sequence and use the right tools.

In this article, we will take a step-by-step guide with photos of key steps, point out typical beginner errors, and give recommendations for post-assembly setup. How to avoid battery damage, tighten the mounts properly and check the health before the first trip. 1S b/u in disassembled state - this guide is also suitable, but with reservations on the possible wear of parts.

The average build time for beginners is 20 to 40 minutes, with experience, up to 15 minutes. The rule is, don't rush or put too much effort into tightening the bolts. Now let's get to the preparation.

Preparation: tools and workplace

Before you build, make sure you have everything you need. - Xiaomi 1S It is equipped with a minimum set of tools, but for convenience it is better to supplement it.

• 🔧 Key hexagon 5 mm (comes complete, but often of poor quality - prepare a spare).
• 🔨 Cross screwdriver (for adjustment of brakes and steering wheel, if necessary).
• 🧲 Magnetic bowl or pallet (so as not to lose small bolts and washers).
• 📏 Line or bar (to check the gaps of brake pads).
• 🧴 Lubrication for bearings (optional, if you plan to immediately service the wheels).

The workplace should be flat and spacious, a waist-high table is perfect, so it's easier to control the force of the puff. Never build a scooter on a soft surface (carpet, sofa), which will skew the frames and uneven load on the bolts. Many mounts and connectors on Xiaomi 1S located in remote locations.

⚠️ Note: If you are assembling a scooter at a lower temperature +10°C, plastic parts (especially clips of wiring) can become brittle.

Unpacking and configuration check

In the box Xiaomi Mijia M365 1S you will find:

• 📦 Main frame with battery and electronics (already partially assembled).
• 🚲 Front wheel with shock absorber and brake disc.
• 🔄 Rear wheel with motor and brake pad.
• 🎛️ Steering column (folding mechanism).
• 📄 Instructions in several languages (including Russian) and warranty card.
• 🔑 Set of bolts, washer and hexagon key.

Before assembly, be sure to check:

1. Integrity of the box – if it is dented or punctured, take a picture of the damage for a possible warranty case.
2. All bolts are included (should be 8 pieces: 4 for wheels and 4 for steering wheels).
3. Condition of brake discs – they should not have deep scratches or deformations.
4. Battery charge (indicator on the frame) If it is completely discharged, charge at least up to 20% before assembly.

If you notice a shortage of parts or damage, do not start the assembly - contact the seller or service center Xiaomi. For example, the absence of even one washer can lead to backlash of the wheel and rapid wear of bearings.

Turn-based assembly: from wheels to steering wheels

We start with the wheels, then we go to the steering column, and it's important to keep the sequence so that you don't have to redo it.

Installation of the front wheel

The front wheel is attached to the shock absorber plug.

1. Insert the wheel axis into the slots of the fork. Make sure the brake disc is located between the pads.
2. Put the puck on the bolt (convex side to the frame).
3. Roll the bolt in by hand, then tighten it with a hexagon. The moment of tightening is 40-50 Nm (don't pull it!).
4. Check the backlash: the wheel should rotate freely, without jamming.

Installation of rear wheel with motor

The rear wheel is more complicated, and there's the engine and the brake.

• 🔌 Connect the motor connector to the controller on the frame (it is one, it is impossible to confuse).
• 🔄 Set the wheel so that the brake circuit does not touch the tire.
• 🔧 Tighten the cross-cross bolts to avoid skewing.

After you have both wheels installed, turn the scooter over and make sure they are coaxial (not shifted relative to each other). If one wheel "goes" to the side, loosen the bolts and align.

Mounting of the steering column

The steering column is fixed to four bolts, and here, a common mistake is an uneven puff, which causes the steering wheel to dangle when driving.

Tighten the bolts in this sequence:

1.Upper left


2. Lower right.




3. Upper right




4. Lower left.

The moment of tightening is 25-30 N·m. After fixing, check that the steering wheel folds smoothly and does not have a backlash in the unfolded state.

⚠️ Warning: If the steering wheel is eating when you turn, it's likely that the bolts are pulled over or the folding mechanism is contaminated.

Electronics Connection and First Launch

After the mechanical assembly, you need to connect the display, check the brakes and charge. 1S connectors are protected from improper connection, but it is better to act carefully.

1. Display connection

The display connector is under the steering wheel, it has a key, so you can't insert it incorrectly, and if the contacts are oxidized (on used models), clean them with a stripe.

Brake check

Press the brake lever, the pads should be evenly pressed against the discs, if the brake is creaking or blocking the wheel is not completely:

• 🔧 Adjust the tension of the cable (screw on the steering wheel).
• 🧴 Apply lubrication to the guide pads.
• 📏 Check the gap between the pad and the disc (should be 0.3-0.5 mm).

3. First activation

Press the power button for 2 seconds. The display should show the inscription. MI, Then the charge level. If the scooter doesn't turn on:

If everything is fine, try driving a few meters at the lowest speed.

• 🔊 Extraneous sounds (squeaking, knocking).
• 🚦 Smooth acceleration and braking.
• 📶 Stability of communication of the display with the controller (there should be no “glitch” of indicators).

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After the first trip, check the temperature of the motor and controller. if they are hot (over 60).°C), this may indicate wheel strain or wiring problems.

Common Mistakes and How to Avoid Them

Even with careful assembly, beginners make mistakes that cause breakages.

1. Bolt tightening, especially on the steering column, which deforms the thread and leads to backlash, use a dynamometer key or tighten "with feeling" (no fanaticism).
2. Ignoring lubrication – if you do not lubricate the bearings of the wheels when assembled, they will begin to “crunch” after 100–200 km.
3. If you put the brake pads backwards, the braking distance increases by 2-3 times, and there's an arrow on the pads that indicates the direction of the wheel rotation.
4. Confusion with wiring, like connecting the motor connector to the display controller. All of the connectors on Xiaomi 1S They are unique in shape, but with strong effort they can be damaged.

Another common problem is the uneven wear of the tires after assembly, which happens when the wheels are not aligned. To check, put the scooter on a flat surface and look at the top: both wheels must be parallel to each other. If one "looks" away, loosen the bolts and align.

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The most critical mistake is ignoring the backlash in the steering column, and even a minimum gap of 1-2 mm will lead to the scooter waving at high speed and an increased risk of falling.

Customization after assembly: firmware and calibration

Mechanical assembly is only half the battle. 1S I worked well, I have to:

1. Update the firmware (if a new version is available).
2. Calibrate the brakes and the accelerometer.
3. Set up driving modes to suit your style.

1. Firmware update

To update, use the official Mi Home app (available for Android and iOS).

1. Connect the scooter to the application via Bluetooth.
2. Go to the Device. → Firmware update.
3. If a new version is available, click Update and wait until it is completed (don’t turn off the scooter!).

The latest firmware versions for Xiaomi 1S:

Calibration of brakes

If the brakes are not working uniformly, calibrate:

1. Turn on the scooter.
2. Press and hold the brake lever for 5 seconds until you hear the beep.
3. Release the lever - the pads will automatically be put in the optimal position.

3. Adjustment of driving modes

In the Mi Home app, you can choose one of three modes:

• 🐢 Eco - maximum speed of 15 km / h, soft acceleration (saves charge).
• 🏃 Standard – 20 km/h, balance between speed and power.
• 🚀 Sport – 25 km/h, fast acceleration (consumes the battery faster).

For beginners, we recommend starting with Eco to get used to the management.

FAQ: Answers to Frequent Questions