You can copy and save the data on your iPhone, iPad, or iPod touch by backing up your device in iTunes or iCloud. If you replace your device, or your device is lost or damaged, you can restore your device from an iCloud or iTunes backup.
Restore from iTunes backup file
1. Connect your device to the computer that you stored your backup on.
2. Open iTunes. If iTunes tells you there’s an iOS update, get the latest version.
3. Go to File > Devices > Restore from Backup. If you’re using Windows and don’t see a File menu, press the Alt key.
4. Look at the date and size of each backup and pick the most relevant.
5. Click restore and wait for the process to finish. Your device will restart and then sync with your computer. Stay connected until the sync finishes.
Restore from iCloud backup file
1. Turn on your device. You should see a Hello screen.
2. Follow steps in the iOS Setup Assistant. Join a Wi-Fi network and follow steps until you see the Set Up Device screen.
3. Tap Restore from an iCloud Backup. Then sign in to iCloud.
4. Choose a backup. Look at the date and size of each and pick the most relevant. After you choose a backup, the transfer starts.
5. If you’ve purchased iTunes or App Store content using multiple Apple IDs, you’ll be asked to sign in to each. If you can’t remember a password, you can tap Skip this Step and enter it later.
6. Stay connected. If you disconnect from Wi-Fi before the process completes, the restore process pauses until you reconnect. Give the process time to finish. Restoring from a backup can take a while, depending on the size of the backup and the network speed.
Restore from an iCloud backup to a device you already set up
The only way to restore from an iCloud backup is through the Setup Assistant. To get to the Setup Assistant on a device you already set up, you’ll need to erase all the content on your device and set it up again.