iPhone Dev Team is well known to release tools for jailbreaking and unlocking iPhone. redsn0w is the most popular tool released by the team to jailbreak iPhone. Recently, redsn0w 0.9.5 has been released which will jailbreak iPhone 4.0. It is currently in beta stage and is intended for developers only which can use it modify their apps for jailbroken iPhone 4.0 as Apple has made some useful modifications in iPhone OS 4.0. It will assist app developers to make their iPhone apps ready before stable iPhone firmware 4.0 is available for public download.
According to team, redsn0w 0.9.5 uses same old exploit which injects payload into the device as ramdisk by reading the stock firmware from Apple. During the jailbreak, it enters DFU mode and installs Cydia and let you enjoy a whole new world of apps and utilities developed by the community. It has been released for MAC only as it is beta version. redsn0w 0.9.5 beta does not hacktivate iPhone 4.0. Therefore, you must have developer UDID with Apple to get through activation screen. Here is a preview of the redsn0w 0.9.5 in action which ultimately results in jailbreak 4.0. It can be anticipated that redsn0w 0.9.5 will also jailbreak iPod Touch 4.0.
If you want to Jailbreak 3.1.3 or Jailbreak 3.1.2, you can read our guide to accomplish the task with Spirit.
Download reds0w 0.9.5 [MAC]
Update 1: limera1n jailbreak may be the next tool by GeoHot. It is expected that it will be jailbreak 4.0 for iPhone and iPad 3.2 but nothing can be ensured till limera1n download is available or any official information is released.
Update 2: Step by step instructions to jailbreak iPhone 4.0 on 3G with redsn0w 0.9.5.
Update 3: You can watch a working demonstration of exploit which can jailbreak iPod Touch 4.0
Update 4: Kaatje has managed to jailbreak 4.0 on iPhone 3GS. It may be released by iPhone Dev Team as Pwnage Tool 4.0 but nothing can be assured until Pwnage Tool 4.0 download is available
Update 5:Unlock iPhone 4.0 is discussed with some expected tools to achieve the task.
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I need to know how to jailbreak iPad 3.2.2 please help me I bought with the 3.2.2 w