I was installing "Breezy" and was going through Jailbreaking but it froze. Now it will not connect to itunes or stay on for more than a few minutes. How can I restore the firmware?
Disconnect the dock from the Mac. Press and hold the Home and sleep buttons UNTIL A YELLO TRIANGLE appers. About 25 secs. Then Fire up iTunes THEN plug the dock back in. iTunes should say "found an iPhone in Restore Mode...." You will likely have to re-unlock after the Restore.
Dock your iPhone and then hold the home + power button for 25s and you will see the yellow triangle. You have to be docked to make this work. Good luck.