I've had my note for 2 days now. I go to school the next day to show of my phone, so I turned it on and it started up saying SAMSUNG then the little AT&T animation pops up then; its just loops that over and over. After a while it went into odin mode, I took the battery out and put it back in turned it back on; it starts up and goes back to odin mode. My device isn't rooted and I didnt download anything off the Internet, so I dont know whats wrong with my phone, please help!