You can download any i OS software updates for i Pad, i Phone, and i Pod touch without using i Tunes.
There are actually two ways to do this, the first is using the i OS device itself but there are caveats and limitations with that, and then there is the traditional method of downloading the update files directly from Apple without i Tunes, which is particularly helpful for those who rely on download managers or who are just encountering trouble with i Tunes automatic updates.
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In that case, you can move ahead with the assurance that you can restore your i Device from an i Cloud backup and be up and running with almost everything.Here's some of them: THE GROUND REALITY OF RESTORING WITHOUT A BACKUP If you have never backed up your i Device in i Tunes, it will not let you backup the device when it's locked.Unfortunately, in this case, we've only got a locked and disabled i Phone that can only be restored as new via i Tunes. This will be apps, app data, contacts, photos, music and most of everything that resides on your i Phone/i Pad.This is often a more reliable way to get an i OS update immediately, sometimes i Tunes will time out during the download when an i OS update has just been released, this is probably due to server overload.Frankly, it’s often faster to just download the update files directly from Apple since they are delivered through a CDN they tend to go at or near your maximum download speeds.