I have been coding for about a week. The h7 suddenly stopped working. Windows no longer picks it up. With some luck I got it programmed again after the 10th try using DFU. But now only one USB port is picking the device up, but then not for long. It seems the device no longer works.
I have not connected anything to the device only the global shutter camera and the micro USB plug.
It seems that once you have rebooted the device about 500 times or so, it stops working.