Challenge accepted :D I wonder if anyone has thought about doing an open-source firmware replacement?
It seems like the development kits for the chip on the Mi Band are readily available. Maybe I’ll get started on something...
I would like to work on this as well. I am new to hacking on the Mi Band but if anyone has idea for how to implement color emojis let me know and I can look into it. I imagine it would require changes to the FW code that renders the text so that it would point to a different set of image files...