I just recently got the new Note 4 and I am having an issue with my screen shutting down automatically. I have set the screen time out to 15 seconds, however I keep having to manually shut my phone off. It does this whether it is plugged in or not, and I have had to take the battery out several times to "temporarily" fix it. It works for a bit, but then it goes right back to the same thing. Anyone have any ideas on what the problem could be? Thanks in advance.