The Coolpix S7000 was released in 2015. The camera has 20x wide optical zoom, Wi-Fi capabilities, and Near-Field-Communications (NFC).
The green light shows briefly when turning on then goes off and camera does not open. a new battery has been installed with the same result.
Carefully inspect the contact surfaces of the battery connection in the camera. They may be corroded.
Otherwise, it is likely an internal issue.