Once the i Tunes update has downloaded, it will begin installing itself automatically.
When the installation is complete, you may need to restart your computer in order to run the new version of i Tunes.
When the update process is complete, i Tunes may not give you any notification.
Some of these processes run quickly, while others take a few minutes. Do not disconnect your i Phone during any of these processes.
The new i OS update will then begin to install on your phone.
Apple delivers its i Phone software updates through i Tunes, so the first thing you should do is make sure you have the most recent version of i Tunes running on your computer.
To update i Tunes, go to the "Help" menu, and select "Check for updates."If i Tunes says you have the most recent version, you're all set to move on to Step Two.