the iphone was dropped and now it will not sync to itunes, charge, and the home button is not working. how do i restore? i can't get get into DFU mode or restore. i can only go to the screen where it says connect to itunes. even when i do that, itunes does not recognize it. i've tried ziphone, iliberty, and quickpwn to try to put it in DFU mode but the computer doesn't see it at all so those programs will not either.