Same thing happened to me, it powered on, got stuck on the word SAMSUNG and the letters just stayed glowing. I plugged in my charger and left it on, stuck on Samsung, left it alone, came back the next day and it was on functioning as normal. Now, plug your charger into your computer though, if you use a usb charger, this way you don't have to worry about overloading anything, and messing up your bills too much, when I went to sleep, I just put my computer in sleep mode instead of shutting it down. Also it may only take a few hours, I was just too done to be bothered with it for the rest of the day.