Yesterday night it was working fine. Now, Ive woken up to a Samsung note 4 that is completely dead.it wont turn on not even when its charging. Tried multiple famous tactics, pressing the power button and the + volume, holding the power button without the battery then try turning it on, left its charging for couple hours. nothing is working. im mostly worried about my Phots and videos stored in it but it wont appear when i plug it on the computer.