Raspberry pi 5 not supported in openhd either in air or ground unit

I tried flashing the air unit firmware on raspberry pi 5, however, my pi 5 cannot boot on the latest firmware, how do I flash firmware on raspberry pi 5

The pi 5 BCM2712 doesn’t have the hardware video encoder that all the previous versions had. I don’t think you’ll be able to use it with openHD. Atleast not with decent rates. Devs might be able to figure out a way to do it without hardware encoding