03-16-2019 02:39 PM
Sorry to hear about the trouble. The power issue in the camera is correlated to either the charging fault, USB-C cable, battery problem, or the camera itself. Here are some troubleshooting suggestions that will help resolve this issue: https://gopro.com/help/articles/solutions_troubleshooting/HERO5-Session-Will-Not-Power-On
If the issue persists, our Support team at https://gopro.com/help/ContactUs will be able to assist you with the next steps.
Hopefully this helps!