LG G3 -D855 User Manual page 342

Backup account – Set to backup your account.
Automatic restore – Set to restore your settings and application data when the
applications are reinstalled on your device.
Network settings reset – This will reset all network settings, including Wi-Fi and
Bluetooth.
Factory data reset – Reset your settings to the factory default values and delete all
your data. If you reset the phone this way, you are prompted to re-enter the same
information as when you first started Android.
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