So, while doing some testing with my P4 drone, things ended badly (only 3-4 feet off ground). Drone crashed, Broke one blade and now when I power on the drone, the gimbal does not do its diagnostics, it seems the motors do not self test, no light near the SD card slot, and no connection to controller. I tried connecting to USB for DJI Assistant 2 and no USB detection sound. I am leaning towards ESC boards, however may just be a loose cable(s) inside (need long shaft M6). Front LED on drone goes solid RED and rear flashes YELLOW quickly.