iPhone 4 on iOS 4.3

Your State of Jailbreak:

Ready to Jailbreak

Good news! There is a jailbreak available for your iPhone 4.

JailbreakMe 3.0:

JailbreakMe 3.0 is the easiest jailbreak ever. It’s a browser based jailbreak meaning that no computer is required. Just go to the site and install Cydia.

JailbreakMe 3.0 Tutorial