Jailbreak iOS 4 iPhone 3G, iPod Touch 2G Using Redsn0w 0.9.5 Beta
Now that iOS 4 GM is available, the iPhone Dev team has updated Redsn0w 0.9.5 Beta to support the new iPhone OS. Currently this new Beta works only for Mac OS X, and for iPhone 3G and iPod Touch 2G. iTunes 9.2 is required to activate your iPhone, which again is currently available only for Mac OSX. Only developers with UDID can activate their iPhone using iTunes 9.2.
The steps to jailbreak iOS 4 on iPhone 3G are similar to the ones given for the earlier redsn0w 0.9.5 Beta. The current version redsn0w 0.9.5b1 added support for iPod Touch 2G, which was missing earlier, and also allows you to enable multitasking and homescreen wallpapers during the installation.
Note: iPhone unlockers should stay away from redsn0w 0.9.5 beta. The jailbreak process involves an update to iOS 4.0, which in turn updates your baseband thus resulting in loss of unlock.
Steps To Jailbreak iOS 4 On iPhone 3G, iPod Touch 2G Using Redsn0w 0.9.5 Beta
1. First activate your iPhone 3G using iTunes 9.2 and a developer UDID.
2. Download iOS 4 IPSW file and save it to your desktop.
3. Run redsn0w 0.9.5 Beta. Browser and select the ipsw file.
4. Click Next to go to the next screen.
How To Enable MultiTasking And HomeScreen Wallpaper
5. In the next screen, select ‘Install Cydia’. Also select ‘Enable multitasking and wallpaper’ if you like to enable these two features.
6. Make sure your device is OFF and Plugged in to your PC and then click Next again.
7. Now use DFU mode (first hold down the POWER and HOME buttons for a few seconds; later release the POWER button, still holding the HOME button till the installation begins) to finish the installation.
8. When your iPhone or iPod Touch reboots, you have a brand new jailbroken iOS 4.
Download Redsn0w 0.9.5 Beta To Jailbreak iOS 4.0 On Mac OS X