Please make sure your iDevice is in KDFU mode, then continue to downgrade. Only when your iDevice is in KDFU mode, you can downgrade to iOS 6.1.3. Step 1 Launch Cydia and add repo: to enter KDFU mode (Please check the detailed tutorial). You are suggested to backup your device before you downgrade. This downloading would not save any data. You can check the product type of your device on 3uTools, then download the corresponding firmware. This downgrading tutorial only applies to iPhone 4s and iPad 2 (Product type: iPad2.1, iPad 2.2, iPad 2.3 and iPad 2.4). Jailbreak your iDevice: Please update your iDevice to iOS 9.3.5 to jailbreak.Ĥ. Download the corresponding custom firmware for your iDevice Download and install the latest version of 3uTools.Ģ.
Now V2.17 3uTools supports downgrading iPhone 4s and iPad 2 to iOS 6.1.3 after jailbreak without SHSH.Īfter you downgrade to iOS 6.1.3, you can check iOS software update on your iDevice to upgrade to iOS 8.4.1.ġ.