How to Backup and Restore your Data

Using the Android system, you can automatically back up your data, such as a list of apps you've installed, the words you've added to dictionary, your Wi-Fi passwords, Browser bookmarks and other settings via your Google account on the servers.

Run the app Settings, tap 'Backup & reset' under PERSONAL.
Check both 'Back up my data' and 'Automatic restore' if they're unchecked.

When you need to reset your device or re-install an app which makes use of the backup service, you can then restore your data and settings from your Google account.