Updating ipod without losing prior
Be sure to backup your device, as this will delete all settings, apps, and contents.
You can also disable passcode security, but we highly advise against doing so.
Head into Settings - Another useful tip is disabling Erase Data from within the Touch ID & Passcode preferences.
In this video tutorial, I’ll show you how to revert back to stock i OS and remove your jailbreak without updating your i OS version.
Note: This tool is in beta for i OS 8.3 and i OS 8.4, so your mileage may vary.
(Call me old-fashioned, but I tend to mistrust the cloud -- and i Cloud always strikes me as a little piecemeal.)Step 1: Connect your i Phone to your computer via USB sync cable.