P4: Beeping and Hung on Startup ???

[DingleBerry]

P4 suffered a controlled flight into terrain event; after replacing the busted plastic prop mounts, when i turn the drone on, it just beeps as shown in the video ( Video of unhappy P4 ).

DJI Go says "Vision System Error". gimbal camera works ok, remote moves the gimbal no problem, and gimbal camera video is shown on the app just fine.


Any ideas ?? Help is appreciated.

 

[Capt KO]

No esc warnings in app? Incomplete motor startup, from video. All 4 motors should sing and dance on startup routine. Seems hungup one one. All motors spin freely?