How to remove the speed limiter on Xiaomi M365: safe-ways

Xiaomi electric scooter M365 It has become one of the most popular modes of transportation in the city because of its reliability and affordability, but factory settings limit its top speed to 25 km/h, the standard for most countries with electric vehicle regulations. For many users, this restriction seems artificial, especially if the scooter is used in enclosed areas or outside the city, where it is safe to reach high speeds.

In this article, we will discuss all working ways to remove the speed limiter on Xiaomi. M365, It is important to understand that any changes in factory settings can affect the warranty, safety and life of the battery.

Not only will we explain how to do the technical acceleration, but we will also explain what physical limitations of the engine and battery can prevent you from achieving the desired speed. M365 designed for long-term operation at 25-30 km / h, and exceeding this threshold leads to overheating and accelerated wear.

Why Xiaomi M365 speed-bound?

The factory limit of 25 km/h is not a whim of the manufacturer, but a requirement of the legislation of most countries where scooters are equated with bicycles. EN 17128, which limits motor power (up to 500 W) and speed (up to 25 km/h) for devices that do not require registration, automatically transfers the scooter to the category of mopeds for which rights and license plates are required.

In addition to legal reasons, there are technical reasons:

• 🔋 Battery: Battery Xiaomi M365 (7800 mAh, 36 V) optimized for moderate loads, up to 35-40 km/h increases current consumption by 30-50%, which reduces battery life.
• 🔥 Engine: 250 W (500 W peak) motor has no active cooling. Long driving at high speed causes windings to overheat.
• 🛡️ Brake: Standard disc brakes are designed to stop from 25 km / h When accelerating the braking distance increases 1.5-2 times.

The manufacturer also takes into account the safety of the user: at speeds above 30 km / h, the risk of falls increases dramatically due to the small size of the wheels (8.5 inches) and the lack of cushioning.

Method 1: Firmware controller through the application (soft-mode)

The most common and relatively safe method is to flash the controller using specialized applications, which does not require disassembly of the scooter and is reversible (you can return the factory settings). M365 chip-based STM32 or NXP (Most models after 2018).

You'll need firmware.

• 📱 Android smartphone (iOS apps are not supported).
• 🔌 USB-Type-C Cable for Connecting to Scooter.
• 💻 DownG app (for firmware) or M365 Tools (for fine tuning).
• 📄 Firmware file with modified parameters (for example, CFW community).

Step-by-step:

1. Download and install DownG app (available on the 4PDA or GitHub).
2. Connect the scooter to the phone through USB and turn on Bluetooth.
3. In the application, select the Firmware section → Custom Firmware and download the firmware file (for example, M365_30kmh.bin).
4. Press Flash and wait for the process to be completed (3-5 minutes).
5. Check the new top speed in the Mi Home app or M365 Tools.

Download the original firmware (in case of rollback)|Check the battery charge (at least 50%)|Disable the antivirus on your phone|Backup current settings in Mi Home-->

⚠️ Note: Some firmware may contain errors that cause loss of communication with the controller or brakes to work properly. CFW forum-wise.

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If the scooter does not turn on after firmware, try resetting by holding the power button for 10 seconds. If this does not help, you will need to reflash the controller through ST-Link (hardware method).

Method 2: Hardware modification (replacement of gear)

If the software method didn't work, or if your controller doesn't support firmware, the other way to do that is to physically change the gear ratio in the gearbox, which requires you to disassemble the scooter and replace the gear with a smaller tooth, which increases speed by reducing torque.

For Xiaomi. M365 fitting gears with a number of teeth 36T or 34T (opportunistic 42T). This replacement allows you to accelerate to 30-35 km / h, but has a number of disadvantages:

• ⚡ Reduced thrust on the rises (scooter may not cope with the slides).
• 🔋 The load on the battery and engine increases, which reduces their resource.
• 🛠️ Requires disassembly of the wheel and the exact installation of the new gear (in case of error, a backlash or noise is possible).

Where to buy gears:

Instructions for replacement:

1. Remove the rear wheel by unscrewing 4 bolts of mounting.
2. Carefully disassemble the motor gearbox (requires a removable for bearings).
3. Remove the standard gear (42T) and install a new one (36T or 34T).
4. Collect the gearbox by lubricating the gears with lithium lubricant (do not use conventional oils!).
5. Set the wheel back and check the work at idle.

Method 3: Use of an external controller (for advanced ones)

For those who want maximum speed without restrictions, there is a radical method - replacing the regular controller with an external one with higher current characteristics. VESC or Kelly. KBS Allows you to adjust the speed to 50+ mileage per hour, but require major improvements:

• 🔌 Complete replacement of wiring (station wires) M365 not designed for high currents).
• 🔋 Installation of an additional BMS (battery management systems) to protect against overdischarge.
• 🛡️ Replacement of brakes with hydraulic (standard will not cope with braking at high speed).

The cost of such an upgrade starts from 15 000 ₽, The installation process requires soldering iron skills and an understanding of circuitry, and in most cases it is cheaper and safer to buy a more powerful scooter (for example, Xiaomi Pro 2 or Ninebot Max). G30).

If you do, we recommend using a controller. VESC 6.6 with settings:

// Example configuration for Xiaomi M365 (36V, 250W motor)


vesc_tool set current_max 30.0 // Maximum current (A)




vesc_tool set current_min -15.0 // Recovery Current




vesc_tool set speed_limit 45.0 // Speed limit (km/h)




vesc_tool set wheel_diameter 0.215 // Wheel diameter (m)

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Replacing the controller voids the warranty and can cause fire if set up incorrectly, a method only suitable for experienced users or professional workshops.

Method 4: Deception of the controller (connecting the resistor)

Less well-known, but working, is tricking the speed sensor by connecting the resistor to the controller board, which doesn't require firmware or cutting gear, but only gives you a speed boost of 3-5 km/h (up to 28-30 km/h), which is suitable for those who don't want to risk warranty.

What you need:

• 🔧 Resistor at 10 kΩ (power 0.25 W).
• 🔥 Stolen iron and solder.
• 📍 Exact controller diagram (can be found on Endless Sphere).

Algorithm of action:

1. Remove the bottom cover of the scooter (unscrew 6 screws).
2. Find the speed sensor contacts on the controller board (usually signed) HALL or SPEED).
3. Seal the resistor between 5V and SIGNAL (signaling).
4. Get a scooter and check the speed.

⚠️ Warning: Incorrectly connecting the resistor can disable the Hall sensor or the entire controller.Be sure to check the resistance with a multimeter before soldering!

Risks and consequences of removing the limiter

Any of these methods has a downside. Before you disperse the scooter, assess the possible problems:

In most countries, riding a scooter above 25 km/h is equivalent to driving a moped without a license, which can be fined (up to 15,000 in Russia). ₽ 12.7 of the Administrative Code, insurance companies may also refuse to pay in case of an accident if it is proved that the scooter has been modified.

If you are determined to disperse, follow the safety measures:

• 🪖 Use protective equipment (helmets, elbow pads, knee pads).
• 🚦 Avoid driving on public roads (especially in the city).
• 🔋 Control the temperature of the engine and battery (optimally up to 60).°C).
• 🔧 Regularly check the wheel mounting and brake system.

Alternative ways to increase speed without modifications

If you do not want to risk the warranty or technical serviceability of the scooter, you can try legal ways to slightly increase speed or improve dynamics:

• 🔋 Quality battery: Replacing a regular battery with a model with a larger capacity (for example, 10,000 mAh) will allow you to maintain a maximum speed without drawdowns for longer.
• 🛞 Larger diameter wheels: Installing 10 inches of wheels (e.g. from Xiaomi Pro 2) will increase speed by 5-10% due to changing gear ratio.
• 🧲 Magnets on speed sensor: Some users glue a small magnet next to the Hall sensor to trick the system, which gives a gain of 1-2 km / h, but can cause controller errors.
• 🏋️ Weight loss: Removing excess accessories (such as a trunk) or replacing plastic parts with carbon fiber will reduce engine load.

You should also pay attention to the settings in the Mi Home app:

1. Open the app and select your scooter.
2. Go to Settings. → Driving mode.
3. Choose Sport over Eco, which will increase engine efficiency by 10-15%.

These methods won’t give you as much gain as firmware or gear replacement, but they’re safe and won’t take away your warranty.

FAQ: Frequent questions about the overclocking of the Xiaomi M365