Got an Osmo today, played with it a few times for maybe a total of 20 minutes. Tried to use it again, and the screen is black on the App as if the lens cap were on. This histogram is working and showing brightness changes when I move the camera, but the camera picture doesn't come through. I have re-installed the App, I had already successfully upgraded to the latest software.

Is there a fix for this?  Or do I have a defective unit to return to the store?

Thanks.

I'm sorry you are experiencing that.
How do the video/photos look on the SD card?