Device settings > Personal
Personal > Backup & Reset
—
Touch this tab to change options for backup
and restore of your application data, also to
erase all personal data.
Personal > Backup & Reset > Backup & Restore
If you check the Back up my data option, your
application data, Wi-Fi passwords and settings
will be backed up to Google’s servers.
You can also choose to restore application data.
Personal > Backup & Reset > Personal Data
—
Touch the Factory data reset tab to erase all
data from the internal memory.
This will include: Google accounts, System
and app data and settings, downloaded apps,
music and photos.
Caution
This operation cannot be undone.
