What is jailbreak iphone 4?

Jailbreak Your iPhone 4 and Start Tweaking

With a new super easy jailbreaking took from JailbreakMe.com, you can have your iPhone 3G, iPhone 3GS, iPhone 4, or iPad jailbroken in just under two minutes. After you jailbreak, it's time to tweak! Here we show you a variety of cool tweaks to make. You can use IntelliScreen to place widgets on your lock screen, SBSettings to launch a super handy toggle menu for WiFi, 3G, and more, MiWi to turn your iPhone into a wireless hotspot, Five Icon Dock to add a fifth icon to your program dock, and WinterBoard to install a wide variety of themes to your device.

The tweaks that we mention, however, are ones that can be huge boons to your iOS 7 experience, and they fix real issues that have annoyed iOS 7 users since day one. So here are five iOS 7 Cydia tweaks that can breathe new life into your iPhone 4.