02-16-2019 01:52 PM
Sorry to know that your camera is not working properly.
Have you tried installing new firmware?
Please check this website and follow manual firmware update: https://gopro.com/help/articles/how_to/software-update-instructions-for-hero7-cameras
02-17-2019 12:42 PM
Which SD card are you using? During crashes, I found it helpful to force the camera to turn off by holding the side button for around 10 seconds. You should try doing the mentioned manual update and also factory reset the camera.