Backup and iOS device
If you back up your iOS device, you will have a copy of your information if your device is replaced, lost, or damaged. See How to back up your iPhone, iPad, and iPad touch for instructions on how to back up your device using iTunes and iCloud.
Restore an iOS device
See Restore your iPhone, iPad, or iPod touch from a backup for instructions on how restore your device from a backup in iTunes or iCloud.