Jailbreak iPhone 4 iOS 5.1.1 Using RedSn0w
These are instructions on how to jailbreak your iPhone 4 on the 5.1.1 iOS firmware using RedSn0w for Windows & Mac version.
Upgrading your iPhone to iOS 5.1.1 through iTunes will update your baseband, potential removing or ruining your chances for an unlock. Please follow this tutorial on how to update to iOS 5.1.1 using a custom ipsw if you need an unlock. The jailbreak is also tethered which means you will need to connect your device to the computer each time you reboot. Finally, it may be prudent to save your SHSH Blobs by following this tutorial before continuing.
If you want to jailbreak a lower firmware version you can find the appropriate tutorial here. If you are on iOS 5.1 and want to stay on that firmware you can still use these instructions by performing the same steps with the iOS 5.1 firmware.
Upgrading your iPhone to iOS 5.1.1 through iTunes will update your baseband, potential removing or ruining your chances for an unlock. Please follow this tutorial on how to update to iOS 5.1.1 using a custom ipsw if you need an unlock. The jailbreak is also tethered which means you will need to connect your device to the computer each time you reboot. Finally, it may be prudent to save your SHSH Blobs by following this tutorial before continuing.
If you want to jailbreak a lower firmware version you can find the appropriate tutorial here. If you are on iOS 5.1 and want to stay on that firmware you can still use these instructions by performing the same steps with the iOS 5.1 firmware.
Step One
Create a folder on your desktop called Pwnage
Create a folder on your desktop called Pwnage