How to | set up and restore with iCloud
1 Restore from iCloud
If you’ve got into the habit of backing up your iPhone or iPad to iCloud, you can safely reset your device and restore the data at a later date, which might resolve problems. However, you can also use your backup to transfer everything to a brand new device if you’re upgrading. Tap through the set-up screens and when you get to Set Up iPad (or iPhone), simply tap 'Restore from iCloud Backup'.
2 Sign in to iCloud
Naturally your iOS device doesn’t know who you are yet, so enter your Apple ID and password. These must be the same as the ones you used on the device from which the backup originates, or iOS won’t be able to find your stored data. You’re effectively setting up iCloud on a new device at this point (even if it’s been used on it before) so you’ll need to agree to the terms and conditions again.
3 Restore your data
iCloud can store multiple backups, allowing you to roll back devices to various states. The setup process will show you the most recent backup from each device, but if you want to roll back further, tap the link below the list to dig deeper into your history. When you’ve found the backup you want, tap it and wait for the data to download from Apple’s servers and install on your device.