LG VS660 - Manual (Page 275)

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For Google Accounts, it lists the kinds of data you can
synchronize to the phone, with checkboxes so you can turn
synchronizing on and off for each kind. You can also press the
Menu Key and touch Sync now to synchronize data. Touch
Remove Account to remove the account along with all its data
(contacts, mail, settings, and so on). You can’t remove the first
Google Account you added to your phone except by resetting
your phone to the factory defaults and erasing all of your user
data.
Privacy
Personal data
Factory data reset Erases all of your personal data from internal
phone storage, including information about your Google Account,
any other accounts, your system and application data and settings,
and any downloaded applications. Resetting the phone does not
erase any system software updates you’ve downloaded or any
files on your microSD card, such as music or photos. If you reset
the phone in this way, you’re prompted to reenter the same kind
of information as when you first started Android.
SD card & phone storage
Use the SD card & phone storage settings to monitor the used and
available space on your phone and on your microSD card, to
manage your microSD card, and if necessary, to reset the phone,
erasing all of your personal information.
SD card
Total space and Available space Lists the amount of space on
any microSD card installed in your phone and the amount you
have used to store photos, videos, music, and other files.
Settings