The package is a specialized recovery toolset used to unbrick and restore Xiaomi Mi3 e-scooters (and similar models like the Pro 2 and 1S) that utilize the GD32 microcontroller (MCU). Released by the developer Conejo within the scooter tuning community, it serves as a critical fix for "bricked" controllers—specifically the V3.1 controller —which often occurs when users attempt to downgrade firmware via Bluetooth on newer models. Core Functionality
In some cases, users must hex-edit the full_mi3_gd32.hex file to insert their specific scooter's serial number to ensure correct identification by apps after flashing.
Can be supported by manually replacing the recovery firmware file (e.g., DRV247 for Pro 2 or DRV319 for 1S) within the tool directory. gd32rec_by_conejo.7z
, the community has adapted the tool for other models using the same V3.1 controller architecture. Xiaomi Mi3 : Default support provided in the package.
Most users require an ST-Link V2 hardware debugger to connect directly to the controller's circuit board for the flashing process. The package is a specialized recovery toolset used
It supports both GD32E (Type 1) and GD32F (Type 2) microcontrollers found in newer Xiaomi ESCs. Type 1 usually requires this tool via ST-Link to recover, whereas Type 2 might sometimes still allow Bluetooth flashing. Usage Overview
Wiring the ST-Link pins (GND, SWCLK, SWDIO) to the corresponding pads on the scooter's controller. Can be supported by manually replacing the recovery
The package includes a batch script named "runme_mi3_reflash.bat" which automates the flashing process, requiring minimal user intervention once the hardware is connected. Compatibility & Variants While originally developed for the Xiaomi Mi3