Apple MC136LL/A Manuale Utente

Updating and Restoring iPhone Software

You can use iTunes to update or reinstall iPhone software, restore default settings,  
and delete all data on iPhone.

• 

If you update, the iPhone software is updated. Your downloaded applications, 
settings, and data aren’t affected.
Note:  In some cases, an update may also include restoring iPhone.

• 

If you restore, the latest version of iPhone software is reinstalled, settings are restored 
to their defaults, and data stored on iPhone is deleted, including downloaded 
applications, songs, videos, contacts, photos, calendar information, and any other 
data. If you’ve backed up iPhone with iTunes on your computer, you can restore data 
from the backup at the end of the restore process.

Deleted data is no longer accessible via the iPhone user interface, but isn’t erased from 
your iPhone. For information about erasing all content and settings, see “Resetting 
iPhone” on page 149.

  Make sure you have an Internet connection and have installed the latest version of 

iTunes from www.apple.com/itunes.

  Connect iPhone to your computer.

  Select iPhone in the iTunes sidebar and click the Summary tab.

  Click “Check for Update.” iTunes tells you if there’s a newer version of the iPhone 

software available.

  Click Update to install the latest version of the software. Or click Restore to restore. 

Follow the onscreen instructions to complete the restore process.

For more information about updating and restoring iPhone software, go to 
www.apple.com/support and search for HT1414.

Troubleshooting