OK just spent hours finishing up my drone vtx, camera all that stuff. All was good, just flicking through settings changing the osd etc. Unplug. Come back couple minutes later and plug back in and bam. The fc shows a blank red light when plugged into my laptop and doesn't beep to confirm escs and motors are good. It still displays video through osd and my receiver still connects to my transmitter. This is the second one now that has done and I have no idea why????! Any help is much appreciated and if u can suggest any better more reliable fc boards. Cheers