Download iOS 4.0
Apple has released final iOS 4.0 firmware for iPhone 4, 3GS, 3G and iPod Touch 3G, 2G. You can Download iOS 4.0 from the links below. Jailbreakers and unlockers must avoid iOS 4.0 firmware. Updating may result in losing the jailbreak or unlock. We strongly recommend you to stay away from iOS 4 firmware and wait for the new jailbreak and unlock tools like PwnageTool, Sn0wBreeze, RedSn0w, UltraSn0w, Blacksn0w to come out. RedSn0w 0.9.5 b5-3 is available now. iPhone 3G and iPod Touch 2G users can go for iOS 4.0. For now the iOS 4.0 is available for iPhone and iPod Touch only. iPad users will be getting iOS 4.0 update later this year. iPhone 2G and iPod Touch 1G users are not getting iOS 4.0 update.
Download iOS 4.0 from below:
If you do NOT care about your iPhone/iPod Touch jailbreak or unlocking iPhone and want to go for iOS 4.0 firmware right away, here are the download links: