iPhone | How to Jailbreak Your iPhone 4 Using RedSn0w (Windows) [5.0]
These are instructions on how to jailbreak your iPhone 4 on the 5.0 firmware using RedSn0w.
This procedure will cause you to upgrade your baseband potentially ruining your chances for an unlock. Please wait until we have posted a Windows tutorial on how to update to iOS 5 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.
Step One
Create a folder on your desktop called
Pwnage
Download RedSn0w 0.9.9b6 from
here and place it in the Pwnage folder. Likewise, download the 5.0 firmware from
here and place it in the Pwnage folder. (Note: you do not need to download the 5.0 firmware if you are already on iOS 5.0)
Extract the RedSn0w zip file by double clicking it.
Step Two: (You can skip this step if iOS 5 is already installed on your device)
Connect your iPhone to the computer and launch iTunes.
Select your iPhone from the list of devices on the left. Now hold down
Shift and click the
Restore button. Restore is preferred as it won't create any wasted space on your iPhone.
Navigate to the Pwnage folder on your desktop and select the 5.0 firmware ipsw. Click the
Choose button to continue.
iTunes will now update your iPhone to the new firmware.