If you’re setting up a new iOS device, or to update to the latest version of iOS, go to the Settings menu, tap General and tap Software Update to see if there’s an update available.
When you turn on a new iOS device or after you’ve completed the update to the latest version of iOS, follow the instructions in the setup assistant to activate your device and set up iCloud.1
If you skipped the setup process, tap the Settings icon on the Home screen, select iCloud, then enter your Apple ID.
Want to use a different Apple ID for iTunes?
To enable automatic downloads for your music, apps and books, tap the Settings icon on the Home screen and select App and iTunes Stores.2