You can choose to use i Tunes or i Cloud to get them backed up.
In this way, some settings will also be backed up and restored to your i Phone later.
With this tool you cannot upgrade or downgrade to any given i OS version.
If you have important data on your i Phone, you're suggested to back them up first.
I refer to those cases where, for example, you are using a jailbroken i Phone and you don't want to lose the ability to jailbreak.
Or you are using i Phone 4s and don't want to upgrade it to i OS 9. If you find yourself in such a situation too, don't worry!
If you can’t update wirelessly on your i OS device, you can update manually using i Tunes on a computer that you trust.
Once the phone is connected you should automatically see it appear in the i Tunes application.
Using Recovery Mode (i Phone 7)Using Recovery Mode (i Phone 6S and Older)Using Cydia on a Jailbroken i Phone Community Q&A This wiki How teaches you how to restore a previous backup on your i Phone without updating it to the latest version of i OS in the process.
While that is not a big issue for normal i OS users it is a big concern for those who jailbreak their device because i OS 7.1 jailbreak hasn’t been released yet.
Since Apple is not signing i OS 7.0.6 or earlier any more you cannot restore to these versions of the operating system even if you want to.