I use a gopro hero 3+ silver camera as a bike camera. It works moderately well for this role. Recently its started locking up and displaying this icon on screen.
Sorry for the potato photo, but to me that is a stylised icon of a bike riding away, from a low point of view.
Did the camera determine it was on a bike by vibrations?
Or am I seeing an image where its really something else unrelated to biking ?