Yeah, 2.2 Firmware may disable ability software unlock.
http://blog.iphone-dev.org/page/3
Being that you have a phone already upgraded to 2.2, I think you are SOL. Sorry.![]()
iPhone 2G (1st Generation)
No problems i have done well over 20 now no issue's
The 2.2 firmware for 2G (1st gen iPhones) doesn’t contain a baseband update and the baseband is still at 04.05.04
Update or Restore your iPhone 2G with iTunes then run QuickPwn, you don’t need to worry about anything.
If you need to unlock
Download http://www.enkrypted.com/bootloaders.rar
Then select unlock and run with bootloaders
If it does not work try again a couple i have done i have had to do twice but still ok.
Also some had been unlocked from ZIPhone updated with Quickpwn with no issue's