RCA Opal M4208RD not turning on..

Question

I just got a new 8GB RCA player for Christmas but I had to wait until New Years to add any files to it. Once I finally got a chance to do so, I unplugged it to test it out. It wouldn't go on past the initializing screen at first so I let it sit for about 10 minutes to sort itself out. Still nothing. Eventually it lost its charge and so it won't turn on for me now. I thought maybe it was the firmware so I downloaded an upgrade but that's not it. I've tried several other USB connectors which haven't done anything. I assumed it was something to do with my computer because it usually is, but it's not because my sister just bought the same player and hers connects just fine and I've also tried connecting my player to other computers and that hasn't worked either.

So I would basically appreciate any kind of help that you can give me since I've been searching this site for tips for about a week and you're the only one I've seen who might know anything about helping me. And sorry for writing such a long message!