Good doctors of the community,
I was hoping you could help me diagnose the issue with my stuttering motor. During my last flight, my quad just tumbled out of the sky with no warning at all. On trying to restart the quad, motor with the orange prop (motor 4?) now stutters on arming in air mode and stop spinning altogether. Video link below.
Does it look/sound more like an ESC or motor issue? I wanted to ask you all before I rush in to buy replacement parts.