Jailbreaking the 3G iPhone
intel Mac & PPC
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Step 4.
Launch iTunes, if it is not already open. You will get a pop up about the iPhone being in recovery
mode.
You should be at this screen.
Press Option and click the Restore button. In the pop up window that opens, navigate to the custom
.ipsw file that was saved to your dekstop by PwnageTool at the end of Step 3.
You will see various status bars, while the restoring process continues.
The iPhone will reboot at this point. iTunes should prompt you to set up the iPhone.
Then this screen will appear, confirming you are on 2.0 firmware.
Here's the first screen you'll see. There's the App Store, and Cydia. No Installer yet...
You can check your firmware and baseband versions here. And here is the App Store.