I recently purchased a used Blackberrery from Ebay, when I tried to turn it on it was non responsive, and I assumed that the battery was so low that It wasn't able to power on . When I tried to turn it on it showed a logo of a battery. I charged it, and when I turned it on I thought all my problems were gone. But now, it will do this thing where every time I turn it on, it will restore all its original settings. And every time i turn it on it shows the same 3 messages unread, even after I read them before.