Cannot enable video output on Hero 3+ Black

Joined: September 12th, 2017, 2:33 am

September 12th, 2017, 2:37 am #1

I'm trying to enable the analog video output of a GoPro Hero 3+ Black (pin 29 and 30). Using an Arduino Mini I'm able to:
  • power the camera
  • set video mode (DM0)
  • check I'm in master mode (ID = 4 in first eeprom location)
Issuing the SET_CAMERA_VIDEO_OUTPUT command (VO1) doesn't enable the signal. Is there something else I have to do before?