Black screen and blue blinking notification LED on a Galaxy S6

[AC Question]

I was on my phone at midnight, by 12:30am my screen would not turn on, completely black, and the notification LED blinks every 3 seconds. I have tried every method i could find on how to reboot my phone. Every single combination of the home, power and volume buttons possible. Is there anything else i can do? I dont want to lose my information and photos and videos. Please help!