Updating i touch
With this, lots of people will want to make sure they remain on whichever i OS 11 version they are currently running. Once you jailbreak your device, it becomes much more difficult to safely restore it to factory settings without updating.This is due to modifications that are made by jailbreak apps/tweaks that won’t be undone simply by using ‘Erase all content and settings’ in the settings app. Prometheus (AKA futurerestore) is a tool created by tihmstar which allows you to restore to unsigned i OS versions as long as you have SHSH2 blobs saved for them.
Click on i Tunes in the menu bar and then click on “Check for updates.” You can also go directly to Apple’s i Tunes download page, which is now allowing you to download i Tunes 11.1, the most recent version of the media manager.
If you are currently running i OS 10 jailbroken, and want to update to i OS 11 to jailbreak, you can follow the guide linked here.
This tool is quite complicated to use, but as long as you do everything correctly, you can restore an i OS device to an unsigned i OS version.
Go back to Settings Software Update and then tap Install Now to install the now downloaded i OS update file.
A note to Jailbreakers: if you’ve used evasi0n, OTA updates will be disabled, which is convenient if you plan to delay updating.