1. You can use Android Backup Service to back up data connected to one or more of your Google accounts.  If you replace your device or erase its data, you can restore your data using the account(s) that you backed up.
   Note: For more information, including what data and settings are restored, please see Back up or restore data on your device.
   
2. From the home screen, drag down the notification bar and tap Settings.
   
3. Scroll to the Personal tab and tap Backup & reset.
   
4. Make sure that Back up my data and Automatic restore are checked.
   
5. If desired, tap Backup account to ensure extra redundancy for backing up your data on the cloud.
   
6. Select the desired backup account or tap Add account to add a new backup account.
   
7. When you add your Google account to a device, the data that you previously backed up for that Google account is restored to the device.
   
8. To restore the device, add your Google account by going to Settings > Personal > Accounts > Google and follow the on-screen prompts.