From the home screen, tap Settings.
Scroll to and tap iCloud.
Tap Account for iCloud personal account details.
From the Account screen, key details for the account are displayed.
iCloud can be customized to synchronize only specific information.
To change the settings, scroll to each application and tap the switch to enable or disable iCloud synchronization as desired.
Scroll to and tap Storage & Backup.
The current iCloud capacity is displayed, as well as how much space remains.
Tap Manage Storage to view the details of what is being stored on the handset, as well as when the last backup was performed.
Tap Buy More Storage and follow the prompts to increase the maximum storage space allowed.
Scroll down to view BACKUP options.
Tap the iCloud Backup switch to ensure the feature is active and that photos, accounts, documents and settings are saved automatically.
Tap Back Up Now to create a new back up and restore point at any time.
Tap iCloud when finished.
The iCloud options are now changed.