title_body: How to fix OSD displaying weird symbols
upvoted_answer: I fixed it by re-uploading the font to the flight controller.
  
  Some people report they need to power the quad with a LiPo for this to work. I did not need to.
  
  
  Go to Betaflight's "OSD" tab
  Click "Font Manager"
  Click "Upload Font"
  
  
  I'm now back with a normal crosshair.
  
  As @3k pointed out, 
  
  
    The reason for this is that the character set has changed between versions so it has to be updated on the copter.