"firmware.bin" is on my SD card. Why isn't it updating its firmware?(YI 4K Action Camera) Format the SD Card, re-copy “firmware.bin” and try update again. Related articles How do I update the YI 4K Action Camera firmware version? How to update the firmware? (YI Smart Dash Camera) How do I restore my YI 4K Action Camera to factory settings? How come the YI 4K Action Camera will not turn on? What are the requirements for my MicroSD card? (YI 4K Action Camera)