In this article we will show you how to flash/update firmware on your Frsky receivers such as D4R-II, X4R-SB, XSR and XM+. This is useful when you have mismatched firmware that prevents you from binding, or you might simply want to update to the latest firmware version.
In this article we will briefly explain the different flight controller firmware options available for mini quad (FPV Racing Drones). We will take a look at the background of these FC firmware, as well as what they were intended to do.
Here I explain how to flash/update BLHeli_S firmware on your ESC using Cleanflight FC Pass-through.