This morning my S6 edge was fine and it had about half charge. It was working normally and didn't show any signs of not working. A few hours later i went to use it and it wouldn't wake up. I tried holding down the power button and it did show signs of life and showed the "Samsung Galaxy S6 edge" logo as it normally does when you turn it on but then the screen just goes black and seems dead instead of going to the other start up animations. I tried charging it but instead of seeing the green battery charging icon it is a grey battery with a lightning symbol in it. I have also tried starting it in safe/ recovery mode by pressing power, volume up and home button but with no luck. Thanks in advance for any help or advice.