No Backup Option in iTunes Fix

If you have a jailbroken or modified device and a newer version of iTunes, you may not have the option to enable backups at all. Let's fix that!

Windows PCs:

Ensure iTunes is closed.

You want to edit the iTunesPrefs.XML file with an XML editor (I used notepad ++). Make sure you make a backup of the file (right-click/copy and right-click/paste) before editing just in case you accidently delete something important. Find this file:

Windows Vista and 7:
C: \Usersusername\AppData\Roaming\Apple Computer\iTunes

Windows XP:
C: \Documents and Settings\username\Application Data\Apple Computer\iTunes or
C: \Documents and Settings\username\Local Settings\Application Data\Apple Computer\iTunes

In iTunesPrefs.XML, search for "backup" it will come to a section that displays:

<key>DeviceBackupsDisabled</key>
<data>
dHJ1ZQ==
</data>

Deleted the above lines. Save and close the file.

Open iTunes and resynch. Step 1 should be a backup. If you do not see your device backup, right click it in the left column and select backup.

Mac PCs:

Ensure iTunes is closed.

Open Terminal and type the following commands in:

defaults write com.apple.iTunes DeviceBackupsDisabled -bool false
defaults write com.apple.iTunes AutomaticDeviceBackupsDisabled -bool false

Open iTunes and resynch. Step 1 should be a backup. If you do not see your device backup, right click it in the left column and select backup.