Bought a 3gs from somebody and they said they reset or restored it to remove their info and now it has been stuck on the apple logo and at times the loading symbol since I bought it which was Saturday night. I bought it to upgrade from my 3g and to get it unlocked/jb but don't know what to do now. Any help or suggestions? I held down the power button and the home for about 15 seconds and that didn't help. I don't think my first thread went through but, if this came up twice I apologize.