Jailbreak does not work
On a 3G iPhone (using a late 2007 or early 2008 iMac with OS X 10.5.6), I have successfully entered DFU mode but as I do, while holding my iPhone power button, at the 9 second mark, my iTunes pops up, and tells me:
An iPod has been detected, but it could not be identified properly. Please disconnet and reconnect the iPod, then try again. An unknown error occurred (2001).
Now, while PwnageTool tells me I have successfully entered DFU mode, I have a black-screened iPhone (I know how to get it back to un-jailbroken, non-DFU mode state), and if I quit and restart iTunes, it does not recognize the phone.
Am I supposed to "Restore" from here? If I press the Alt/Option key when iTunes is up and running, I get nothing. If I re-try and press it when I am opening iTunes, I get a chance to build a new iTunes off a new Library (not what I am trying to do). I have not been able to find a "Restore" button to click.
Any help available?