"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 Where can I find and download the latest firmware? (YI Action Camera) Where can I download YI Action Camera App?(YI 4K Action Camera) How do I upgrade the YI LITE Action camera firmware version? How do I fix my app issue? Unable to Pair Camera