iPhone unlock and jailbreak

Well, the folks have finally figured out how to unlock an iPhone 3G. You just have to make sure you *do not* upgrade to 2.2.1. You need firmware 2.2 with baseband 02.28.00. The source is at dev-team blog. The short notes are that it only works with the baseband you get with 2.2, so *don’t* upgrade and there is a bug with the most recent OS X 10.5.6 that you have to work around.

You basically use PwnageTool on the Mac as explained by intomobile.com

  1. Fix 10.5.6 with the 10.5.5 USB drivers by using a script that installs the old USB drivers by running Fix_DFU_10_5_6 which installs two drivers or .kext files
  2. Download and install iPhone 2.2 software (not 2.2.1!!!)
  3. Download PwnageTool 2.2.5 or later
  4. Run it in expert mode and find the iPhone 2.2.1 OS firmware called iPhone1,2_2.2.1_5H11_Restore
  5. Uncheck the Activate if you have an AT&T contract already (like me!)
  6. Change root partition to 1000MB and choose Build
  7. Save the new file as iPhone1,1_2.2.1_5H11_Custom_Restore.ipsw
  8. Select No if you have an iPhone 3G and never been Pwned and go into restore mode and now quite Pwnage and start iTunes
  9. Option click on Restore and find that Custom_Restore file

For first generation iPhones, these are still easily unlocked.