Reverse-Engineering the Mi Band 10’s Bestechnic SoC to Run Doom
A Hackaday post details reverse-engineering the Mi Band 10, whose BES2700iMP/BEST1503 SoC lacks a public SDK. By using a leaked SDK from the similar BEST1306 BES2700 variant found with audio-focused development kits, the author assembles a BEST1503-compatible SDK and ports Doom to the band via the GBADoom project. The build reveals limitations: the display runs in single-bit SPI instead of quad-SPI and has limited color depth; the approach is likely to extend to Mi Band 9 as well.