Galaxy S6 :: Edge Screen Won't Turn On?

I've had my s6 for about 3 months now and this is the first problem that i have encountered. So i was using my s6 edge on the way to work and it was working fine as usual, got in and put my stuff in my locker and started work. When i had finished i went to use my phone and the screen stayed black but i have the blue LED blinking slowly so the phone must still have power.

I have tried holding the power button down for varying periods of time which done nothing also holding the power button home and volume down buttons done nothing. I have tried plugging The phone into the charger and the red LED indicating that it is charging does not turn on, it is the same result noi matter which phone charger i use or which socket i use. Also if i try plugging it directly into my pc it is not detected.