So I finally bought a Lumia 920 today from a guy on craigslist and to clear all of his data, he did a factory reset on the phone. The gears were spinning and I figured they would eventually stop. I had to stop by the grocery store on the way home and when I get back to my car, the phone is off. I assumed that the reset had worked and it was ready to use. When I turned it on, there was a noise that sounded like a fan inside the phone stuttering to start and then the phone turned on, but displayed the empty red battery screen. So when I got home I put it on the charger and checked back on it a few minutes later and it continuously displays the charging battery screen. I waited for about an hour and nothing changed so I looked up if there was anything to do to fix it and I ended up getting it to go back to the spinning gears, but it just loops that screen. The fan-like noise keeps on happening every time I reboot the phone and I think that may be whats wrong. I don't know what exactly is wrong with it though. Does anyone have any info on what could be the problem and on how to fix it? Thanks guys!