You can back up your iOS 5 based iPhone in different ways, including iPhones 4 S and iPhone 3GS, iPhone 4 that has been updated to iOS 5. You can use iCloud or iTunes to automatically back up iPhone. If you choose to automatically back up using iCloud, you can’t also automatically backup to your computer using iTunes, but you can use iTunes to back up manually to your computer.
If you like to know how to update to iOS 5, here is the URL: How to Update iPhone to iOS 5?
Backing up iPhone with iTunes
iTunes creates a backup of photos in your Camera Roll or Saved Photos album, and in text messages, notes, call history, contact favorites, sound settings, and more. Media files, such as songs, and some photos, aren’t backed up, but can be restored by syncing with iTunes.
When you connect iPhone to the computer you normally sync with, iTunes creates a backup each time:
Sync iPhone with iTunes:
iTunes syncs iPhone each time you connect iPhone to your computer. iTunes won’t automatically back up an iPhone that isn’t configured to sync with that computer.
You can sync by connecting iPhone to your computer using the Dock Connector to USB Cable, or you can set up iTunes to sync wirelessly using Wi-Fi. You can set iTunes to sync music, photos, video, podcasts, apps, and more.
To set up wireless iTunes syncing for iPhone, you can connect iPhone to your computer using the Dock Connector to USB Cable. In iTunes, turn on “Sync over Wi-Fi connection” in the device’s Summary pane.
Back Up iPhone when Update/restore iPhone:
Each time you go to update or restore iPhone, iTunes will automatically backs up iPhone before updating and restoring as part of the update and restore process.
Encrypt iPhone backups
iTunes can also encrypt iPhone backups to secure your data. Connect iPhone to your computer, click to select your iPhone from the left device panel, select “Encrypt iPhone backup” in the iTunes Summary screen.
For more information about backups, including the settings and information stored in a backup, go to support.apple.com/kb/HT1766.
Backing up iPhone with iCloud
iCloud automatically backs up iPhone daily over Wi-Fi when it’s connected to a power source and iPhone is locked. The date and time of the last backup is listed at the bottom of the Storage & Backup screen. iCloud backs up your:
Purchased music, TV shows, apps, and books
Photos in your Camera Roll album
iPhone settings and app data
Home screen and app organization
Messages (iMessage, SMS, and MMS)
Note: Purchased music is not backed up in all areas and TV shows are not available in all areas.
If you didn’t enable iCloud backup when you first set up iPhone, you can turn it on in iCloud settings. When you turn on iCloud backup, iPhone no longer backs up to your computer automatically when you sync with iTunes. But you can still use iTunes to back up iPhone manually to your computer.
You can go to Settings >> iCloud, then log in with your Apple ID and password, if required. Go to Storage & Backup, then turn on iCloud Backup. From the Storage & Backup section, you can tap Back Up Now to back up your iPhone immediately. To manage your iPhone backups or view the devices being backed up, tap Manage Storage.
Music that isn’t purchased in iTunes isn’t backed up in iCloud. You have to use iTunes to restore and backup that content.
Backups for music or TV show purchases are not available in all areas. Previous purchases may be unavailable if they are no longer in the iTunes Store, App Store, or iBookstore.
Purchased content, as well as Photo Stream content, doesn’t count against your 5 GB of free iCloud storage.
For those iPhone users who might be affected, please refer to Backing up iPhone with iTunes as mentioned above.
Now you know how to back up your iOS 5 based iPhones, iPhones 4 S and iPhone 3GS, iPhone 4 that updated to iOS 5.
If you like to restore your iPhone, here is the URL: How to restore iPhone using iTunes and iCloud?