Today, I crashed my Evo Lite heavily. Externally, nothing appears damaged. However, when I picked-up my drone, it had shut down. When I long-pressed the battery to restart it, the entire green LED ring momentarily lights up before only the top left quadrant stays on and flashes. The drone does not make its normal 'switching on' sounds nor does the drone's internal fan start. I tried all three of my (fully charged) batteries and the same thing happens. What is the issue and how can it be fixed?