Jailbreak iPhone iOS 4.0.2 with Redsn0w

JailbreakMe is not compatible with the latest iOS 4.0.2 software update, however, the iPhone Dev Team said that it’s possible to jailbreak iOS 4.0.2 on iPhone 3G and iPod Touch (non-MC models) 2G with Redsn0w 0.9.5b5-5.

Apple released iOS 4.0.2 to address and patch a security problem found on iOS 4.0 and 4.0.1 created by JailbreakMe.

Now, to jailbreak iPhone 3G and iPod Touch, first, you would need to download iOS 4.0.2 for your version of iPhone and iPod touch. Update to this latest firmware using the IPSW file you downloaded via iTunes 9.2.1.

Start Redsn0w 0.9.5b5-5 and point it to iOS 4 Final Version (not iOS 4.0.2 firmware). After this, select “Install Cydia” and click “Next”.

This action will take you to a screen with a message that says: “Please make sure your device is both OFF and PLUGGED IN to the computer. If it is not off, plug the device into the computer FIRST. Then hold down the Power button (on the edge of the device) until ‘Slide to Power Off’ appears, and then slide to power off. Click next ONLY when your device is BOTH off and plugged in.”

After clicking next, you will be presented with a screen where you would need to quickly hold the “Power” button, and then while holding the “Power” button, you will also need to hold the “Home” button at the same time. After a few seconds, release the “Power” button but keep holding the “Home” button until installation begins.

Redsn0w should now be doing the rest of the job for you. Once done, your iPhone and/or iPod Touch will restart automatically and you will find it jailbroken on the latest iOS 4.0.2 firmware.

iPhone 4 Unlock | Unlock iPhone 4.0.1