ZSBand: Reverse Engineering of Xiaomi Mi Band
This project outlines a systematic approach to hack, reverse engineer, and eventually develop custom Zephyr RTOS based firmware for the Xiaomi Mi Band. It aims to understand the device’s hardware components and system overview to create an open-source alternative firmware.
Source code is available on GitHub.
Project Phases
Phase 1: Hardware Analysis
Map debug ports (SWD, UART) and test points
Document PCB layout and component connections
Extract firmware through debug interfaces if accessible
Phase 2: Zephyr Port Development
Create device tree source for Xiaomi Mi Band
Implement drivers for display and sensors
Legal and Ethical Considerations
Developing for personal use and research purposes only
Avoiding distribution of copyrighted firmware components
Focusing on interoperability and open standards
Documenting for educational purposes