I've got an urgent problem which needs sorting out asap.
I'm currently on 1.1.4 and i want to go onto 2.1 using Quickpwn.
I've updated to iTunes 8 and when i press shift-restore in iTunes i select the 2.1 restore file and it extracts the file. After the phone goes into DFU mode and in iTunes its trying to be it into restore mode but its already doing that and i receive an error
'The iPhone could not be restored. An unknown error occurred (1602)'.
Then im forced to hold the home and power button for 15 seconds to get back to square one.
I've tried it 6 times and the same problem.
I've installed iTunes again and rebooted the machine a number of problems.
Need help big time - anyone been in this situation before or know the solution.