So I went into Apple last week because my iphone 3gs keeps randomly turning off and WILL NOT turn on even when I hold the power button OR when I hold the home and the power button together OR when I plug it into my computer. But when I charge it through the charger attached to the wall, it turns on but starts up like its a brand new iphone so anyways I went into the Apple Store last week and one guy inspected it and basically said the only thing he could do is to restore it or I could pay 160 to get a new iphone. I asked why he couldnt replace it because there is OBVIOUSLY something wrong with my phone. and he tells me its because there is a small crack in the front glass. so I went home, restored my Iphone and it worked fine for a couple weeks but now the same thing happened. So I am going into the store today to hopefully get it fixed but I was wondering is this a normal rule? that jusdt because i have a small crack in the bottom of my screen they refuse to replace it for free EVEN THOUGH there is a flaw in the phone itself? Also is there anything I could say to the genius bar workers to get them to actually help me and replace my phone? Thanks!