How to Back Up and Restore your iPhone/iPad/iPod using iCloud

Back up to iCloud

-  iCloud can back up your iDevice automatically. Just make sure you set this option up as below:

1. Tap Settings > iCloud > Storage & Backup.
   
2. Turn on iCloud Backup if it's off.
3. Tap Back Up Now.

Restore from an iCloud backup

If you have a new iOS device, or if you need to restore your iOS device to resolve an issue, follow these steps.

1. Follow the initial steps in the iOS Setup Assistant (select your language, and so on).
2. Select Restore from iCloud Backup when the assistant asks you to set up your iPhone (or other iOS device).
   
3. Select the backup you created earlier.
   

You can restore a backup only by using the iOS Setup Assistant.
If you've already set up your device, you can erase all current content to go through the iOS Setup Assistant again. Tap Settings > General > Reset > Erase All Content and Settings. Do this only if you already have a backup, because this step will remove all current content from your device.