LG LGL85C - Manual (Page 101)

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The Data and synchronization screen will open, displaying a list of the
types of data the account can sync.
3. Tap the items you want to sync (A green checkmark indicates that
synchronization has been enabled).
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By disabling synchronization for an item, it will not remove the previously
synchronized data from your device, it will simply stop future synching. To
remove the information previously synced for the account, you must
remove the account.
Device Settings