Learn how to jailbreak iOS4 and unlock iPhone. The guide contains the following:

• Jailbreak iOS 4 Firmware on iPhone 3GS with PwnageTool 4.0
• Jailbreak iOS 4 Firmware on iPhone 3GS for Windows
• Jailbreak iOS 4 Firmware on iPhone 3G with Redsn0w 0.9.5
• Verified iOS 4 Firmware File Download Links for all Devices
• Unlock iOS 4 Firmware on iPhone 3G, 3GS with Ultrasn0w 0.93

and some fixes.

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