Last night my battery hit 5%, so I put my charger in, but it said it wasn't charging. So I turned off the phone. But when I tried turning it back on a screen popped up and said something about Downloading something and to "not turn off the phone." I didnt know what to do so I assumed it was going to do whatever the phone needed to do, so i went to bed. When I woke up the phone was off, but now i cant turn it on. The phone is not rooted and I dont know what the problem is. I tried taking out the battery and putting it back in, but it did not work. Can someone help me??