My 3gs is stuck at apple logo. I had upgraded via Cydia the GNU
debugger and the phone wouldn't start normally. It actually
stays at apple logo for a few minutes and then self reboot. I
have tried to restore a virgin 3.0 but can't since Itunes
doesn't allow it. I have tried irecovery with auto-boot enable
but didn't succeed.  Bizarre enough Redsn0w 0.8 is working
perfectly with all steps but when its fully done the phone keeps
on rebooting after a while.  Seems that the boot / inittab or rc
files have been corrupted.  Is there a way to stop redsn0w just
after the filesystem sync and get access to a unix console? I
have tried diskaid but couldn't succeed in getting a connection.
If I could get redsnow to stop before reboot I'll be able to fix
it. Is there any option not documented?  I didn't have the
chance to have Cydia backup my ecid, nevertheless I have it
written. Is there a possibility to send to cydia my ecid from a
PC or MAC?  Last idea: what if I restore using iTunes 7.7 or
8.1?