Here is how to flash new firmware to you BLHeli and BLHeli_S ESCs using the BLHeli Suite. The process is the same for both. I also add a few tips.
BLHeli Suite playlist – https://www.youtube.com/playlist?list=PLiYYhnH4BhI87HJXcyYui_Tzoc3bkcFhX
All my playlists – https://www.youtube.com/channel/UCObMtTKitupRxbYHLlwHE3w/playlists
great video! hey can you make a video showing all the steps on enabling
airmode? thanks