title_body: Betaflight with Mamba F405 MK2 stack 40A ESC's and XING-E 2207 motors problem I build a quad using Mamba F405 MK2 stack 40A ESC's and XING-E 2207 motors.
  Here are some pictures of my configurations on Betaflight and BLHeli Configurator:
  https://imgur.com/a/mFLDiVp
  Also video of issue in Reddit:
  https://www.reddit.com/r/Multicopter/comments/inphxg/why_is_this_happening_with_my_motors/
  I used to have two issues:
  I set Bidirection Dshot with 4khz PID loop freq and because using F4 FC I had to change to Dshot300. Then when trying to set little bit the Throttle after arming the quad the motors suddently spin super mega fast (very dangerous).
  When I arm the quad the motors start spinning even that I have set not to spin when armed.
  What I did for the first issue is to remove bidirectional dshot. Seems that because the ESC only support Dshot 600 when I set Dshot 300 it start behaving pretty bad.
  Any clue if using F4 flight controller I can use Dshot600 with bidirectional dshot?
  Also any clue on how to solve the start spinning motors thing?
  Thanks
upvoted_answer: If you have airmode enabled as a feature then the motors will spin on arm no matter what other settings you have.
  It sounds to me like you may have accidentally set your ESC's to bi-directional in BL-heli configurator which is NOT the same as bi-directional DSHOT protocol.  Check out this video for explanation on the difference : https://www.youtube.com/watch?v=DXfAnCLr3q0&amp;t=65s