There are plenty of reasons to consider installing i OS 10.3.3 on your device (particularly if you skipped i OS 10.3) but there are also some reasons why you might be better off waiting a few days before installing i OS 10.3.3 on your i Phone, i Pad, or i Pod.
See: The i OS 8 update can be installed on the i Phone 5S, i Phone 5C, i Phone 5, i Phone 4S, i Pad Air, i Pad mini Retina, i Pad mini, i Pad 4, i Pad 3, i Pad 2, and i Pod touch 5. Tap on the available update and hit Install—all you'll need is a strong Wi-Fi connection.
But, given Apple's previous history with server overloads and millions of people downloading the update at the same time, it's always more reliable to update via i Tunes.
If you’re coming from an older version of i OS, your i OS 10.3.3 update will actually be much bigger thanks to i OS 10.3.2 and any other i OS updates you skipped along the way.
You’ll get features and fixes from those older i OS updates baked into your version of i OS 10.3.3.
i Pad, i Phone, and i Pod touch owners: it's that time again.
i OS 8 has been released to the public, and those who have been eager to update since Apple's WWDC announcement won't have to wait any longer.
Just make sure to create a list or take a screenshot of all your jailbroken apps and Cydia downloads so you can go back and get them once a i OS 8 jailbreak method is released.
Also, OTA updates are usually not available for jailbroken phones, so you'll have to update via i Tunes.
:) Is there a way to preserve data while upgrading?
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I am still on i OS 4, and I understand that I need to erase my i Pad before upgrading.