title_body: Drone tipping over when attempting to fly (possible accelerometer problem?)
upvoted_answer: Some simple things to look for before we go deeper:
  
  Did you check that all four props are mounted correctly? (CW on top left + bottom right, CCW on top right + bottom left)
  With your props off(!), your drone connected to the Betaflight Configurator, and your control inputs neutral, are all three control axes all centered (at $1500$) in the Receiver pane?