i keep trying to restore to the original 3.1.3 with itunes using and "signed" ipsw from ifaith. The iphone 3gs is in constant black screen(pwned DFU mode) and the apple logo/loading bar pops up when apple is "verifying". When the restore is complete, it tells me to leave it plugged in and that it should be restarting now. There's a little 10 second countdown then the pop goes away and im back where I started, itunes recognizes an iphone in "recovery mode". -_____- HELP.