@atilay 

Hi,
If you're unable to power on a camera, follow these steps:
1. Check the tight connection between the camera and the power adapter.
2. Factory reset the camera for a try.
3. Plug the power adapter into another wall socket.
4. Use an alternate power adapter if available.

If the problem remains, it may be the camera has a hardware issue, and you can contact your retailer or local support to check if the camera is under warranty.

Best Regards