Xiaomi Firmware Reflashing M365 Pro: From Selection to Installation without Errors

Why do you need to check out Xiaomi? M365 Pro and when you really need it

Xiaomi electric scooter M365 Pro is one of the most popular in the brand’s lineup, but even it is not without factory restrictions: Stock firmware often blocks top speed (limiting it to 25 km / h), reduces engine power to meet local regulations or cuts functionality in the Mi Home app. Flashing allows you to remove these restrictions, improve accelerator responsiveness, add new ride modes, or even integrate support for third-party applications like ScooterHacking Utility.

But not every firmware is justified, and if your scooter is stable and the speed limits are fine, you don't have to risk it.+ Km/h (for experienced riders), fix the firmware bugs (for example, sudden engine shutdowns), or restore performance after a failure. It is important to understand that the wrong firmware can turn a scooter into a "brick" - without the possibility of recovery without a soldering iron and a programmer.

Before you start, answer three questions:

• 🔍 What is your goal? Overclocking, new functionality or repair?
• 🛠️ Is there a backup of the current firmware? Without it, error recovery will be extremely difficult.
• 📡 Are you ready for a possible loss of warranty? Xiaomi does not officially support custom firmware.

Preparation for firmware: tools and security

Xiaomi Firmware Reflashing M365 Pro requires not only a firmware file, but also specialized hardware:

• 💻 Computer on Windows 10/11 (for macOS/Linux Additional drivers will be required).
• 🔌 Cable USB-TTL (for example, FT232RL or CP2102) plug-in.
• 🔧 Screwdriver. T8/T10 hull-breaker.
• 📁.bin firmware (versions 1.5.5 or 1.6.1 are considered the most stable for the software). M365 Pro).
• 🛡️ Uninterruptible power supply (UPS) — Interrupting the process can damage the controller.

It is critical to check the firmware compatibility with your board review. M365 Pro three main:

To find out the audit, take apart the scooter and look at the label on the board under the battery. MINI16_C, Be careful: the firmware is older 1.5.0 They may cause conflicts with BMS.

⚠️ Note: Some firmware (e.g., 1.6.1 from ScooterHacking) require prior patching via DownG. Without this, the scooter may not turn on after the update.

Download the firmware from the official repository (not from the forums!)

Check the version of the payment and software compatibility

Charge the battery to 100% (risk of shutdown at 20% charge)

Connect USB-TTL port UART on board (not to charger!)

Shut down. Wi-Fi/Bluetooth on a scooter to avoid conflict-->

Step-by-step: how to flash Xiaomi M365 Pro through USB-TTL

The most reliable method of firmware is through direct connection to the controller.

1. Disassemble the scooter, removing the lower cover (4 screws) T8). The battery does not need to be turned off, but be sure to isolate the contacts to avoid short circuits.
2. Connect. USB-TTL port-adapter UART board-board: TX → RX, RX → TX, GND → GND). Nutrition (VCC) You can’t connect it, it can burn the controller!
3. Install the driver. CP210x or FTDI (There's a new device manager that needs to be installed. COM-port, COM3).
4. Download the ST-Link Utility or Flash Tool (for ScooterHacking firmware: COM3 (Your port) Speed: 115200 baht Protocol: STM32 File: Your firmware.bin
5. Press Connect, then Erase, and wait until it's done. Then click Write and download the new file, and it takes 3-5 minutes.
6. When you're done, turn off the adapter, assemble the scooter, and turn it on. If the light flashes green, the firmware is successful. Red or no reaction is a sign of error.

If the scooter does not turn on after firmware, try:

• 🔄 Reboot the controller (disconnect the battery for 10 seconds).
• 🔧 Repeat firmware with another version of the software (for example, roll back to 1.3.6).
• 📡 Check the connection. USB-TTL (common mistake - confused TX/RX).

Alternative methods: firmware via Bluetooth and mobile applications

For those who do not want to disassemble the scooter, there are firmware methods without USB-TTL, But they're less reliable, and they're only suitable for minor updates, like ScooterHacking Utility, which is available for Android:

• 📲 Update the firmware without disassembly (only for versions 1.4.0)+).
• 🔓 Unlock speeds up to 30-35 km/h (requires root rights on the phone).
• 📊 Configure the accelerator recovery and response parameters.

Instructions for ScooterHacking Utility:

1. Download APK from the official website (not from Google Play!).
2. Connect the scooter to your phone via Bluetooth.
3. In the application, select Firmware Update and download the firmware file.
4. Follow the instructions on the screen. Do not disable the scooter until the process is complete (about 10 minutes).

Cons of this method:

• ⚠️ High risk of “bricking” when communication is interrupted.
• 🔋 Requires a battery charge of at least 80%.
• 📵 It does not work on iOS and some Android models (for example, Xiaomi with the MIUI 13+).

⚠️ Note: Firmware via Bluetooth can cause you to lose communication with the original Mi Home app.If synchronization with the Xiaomi ecosystem is important to you, use only official updates.

💡

Before you run your firmware via Bluetooth, turn off the energy-saving mode on your phone and add ScooterHacking Utility to the battery optimisation exceptions, which will reduce the risk of connection breakdown.

Top.-5 firmware M365 Pro: Comparison and recommendations

The choice of firmware depends on your goals. Below are the proven options with a description of the features:

For most users, the best choice is ScooterHacking 1.6.1 or CFW by DRL 1.5.5 The first one gives maximum tuning options, the second one gives the best balance between performance and stability, ESC Custom) designed for experienced riders and require upgrade of the braking system.

Where do I download?

• 🌐 Official sources: ScooterHacking, GitHub OSF.
• 🚫 Not recommended: forums 4PDA, Telegram channels without verification (virus risk).

💡

Firmware with accelerations above 30 km / h requires mandatory check of brakes and tyres. At this speed, the standard 8.5" wheels. M365 Pro lose traction on wet road.

Frequent errors and their solutions: what to do if the firmware failed

Even with the exact following of the instructions, problems can arise. Let's consider typical scenarios and ways to eliminate them:

1. The scooter does not turn on after firmware (black screen, no indication)

• 🔋 Check the battery charge (minimum 30% required to start).
• 🔌 Repeat the firmware with another version of the software (e.g. 1.3.6 for recovery).
• 🛠️ If it doesn't work, it might be a damaged bootloader. Boot0.

2. The scooter is switched on but not driven (engine unresponsive)

• 🔧 Check the connection of the motor cable to the controller.
• 📝 Reset your settings in ScooterHacking Utility (Reset to Default).
• 🔄 Refuse with the battery turned off (sometimes helps in conflicts) BMS).

3. Communication error when running through Bluetooth

• 📱 Reboot the phone and scooter.
• 🔄 Try another Bluetooth adapter (some phones block low-level access).
• 📡 Use it. USB-TTL — It's more reliable.

4. The scooter brakes or twitches when accelerating.

• 🛠️ In the firmware, disable Eco Mode (if any).
• 🔧 Reduce Acceleration Strength in Settings.
• 🔋 Check the battery voltage (at <36V snatch).

If none of the methods worked, contact specialized services (for example, Scooter Repair Lab in Moscow or E-Scooter Service in St. Petersburg). The cost of recovery after a failed firmware is from 3 000 ₽.

Legal aspects: dispersal of the scooter and responsibility

In Russia and most CIS countries, scooters are equated to personal mobility (SIM). According to the traffic rules (paragraph 19.1), the maximum allowed speed for SIM is 25 km / h. Exceeding this limit can lead to:

• 🚔 Fine from 800 ₽ up to 1,500 ₽ (12.29 of the Administrative Code).
• 🚨 Removal of the scooter in case of repeated violation (in practice it is rare).
• 🚑 Responsibility for an accident: if the accident occurred on an accelerated scooter, the fault automatically falls on the owner.

In Europe, the rules are tougher: in Germany, for example, scooters with a top speed of 20 km/h require registration and insurance; in France, the legal limit is 25 km/h, but it is mandatory to wear a helmet and reflectors.

What to do if you still dispersed the scooter?

• 🛡️ Use turbo mode only in closed areas.
• 📱 Install the Strava or MapMyRide app to track speed and avoid being overstepped in the city.
• 🔧 Set up an automatic limit to 25 km / h when connecting to the firmware GPS (ScooterHacking Utility is available in ScooterHacking Utility).

⚠️ Note: Some insurance companies (e.g. AlphaInsurance or Ingosstrakh) refuse to pay in case of an accident if the scooter has been modified.

FAQ: Answers to Frequent Questions About Xiaomi M365 Pro