I had it plugged into my computer earlier to charge but when I unplugged it, it had turned off. I couldn't turn it back on so I thought it just didn't charge. So I plugged it into the wall charger but it wouldn't charge, or turn on, The orange light didn't even appear. Now I have it plugged back into my computer and the orange light is on but it won't turn on? HELP!??!?!?!