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Verify apps
Some apps can harm your phone. You can choose to verify apps in order to
help prevent harmful software from being installed on your phone.
Back up and reset your phone
Go to
Settings
>
Backup & reset
.
Back up my data
Select this option to back up your app data, WLAN passwords, and other
settings to Google servers.
Backup account
Specify a Google account you added on your phone as your backup account.
We strongly recommend not selecting the
Unknown sources
option. Apps from
sources other than
Play Store
may contain malicious content to harm your phone
or steal your personal data.