Step Eleven Your device will be detected once in DFU mode and exploited with Limera1n. Step Twelve Redsn0w will now restore the device to the new firmware.Step Thirteen Red Sn0w will tell you when the restore has been completed successfully.To make sure that your i Phone is running the latest version of i OS, you'll need to connect it to your computer and download the update using i Tunes.
You can download it if you like, but you don't need it to update i Tunes.
Once the i Tunes update has downloaded, it will begin installing itself automatically.
ANSWERS: If you need help with this tutorial please post a question in the comments or submit a question to the i Clarified community using our Answers section.
Then I come up with a question: Since Pwned DFU mode allows the i Phone to download an customized ipsw created from sn0wbreeze, does it mean that Pwned DFU mode allow an i Phone 4 to install(upgrade or downgrade) any version of offical i OS without requiring an SHSH blob for the corresponding i OS?
Likewise, download the firmware you would like to upgrade to from here and place it in the Pwnage folder.
Extract the Red Sn0w zip file to the Pwnage folder. Step Five Click the Restore button from the Even More menu. Choose the firmware you would like to update to from the dialog box that appears and click the Open button.
You'll have to review and accept the i Tunes Software License Agreement before the new version will launch.
When you have i Tunes open, connect your i Phone to your computer using its USB cable.
Step Two Right click or control click the Red Sn0w application that you extracted in Step One and click Run as Administrator from the popup menu that appears. Step Seven You will be asked if you would like to Prevent baseband update. Step Eight You will be told that Pwned DFU mode is required. Step Nine Connect your i Phone to the computer, turn it off, and click Next Step Ten Red Sn0w will now guide you through the steps to get into DFU mode. Hold down both the Home button and the Power button for 10 seconds.
Release the Power button and continue holding the Home button until Red Sn0w detects the device.
When the installation is complete, you may need to restart your computer in order to run the new version of i Tunes.