About backing up and restoring data
You can back up and restore most of the data on your BlackBerry® device, including messages, organizer data, fonts, saved searches, and browser bookmarks.
Research In Motion recommends that you regularly create and save a backup file on your computer, especially before you update any software. Maintaining an up-to-date backup file on your computer might allow you to recover device data if your device is lost, stolen, or corrupted by an unforeseen issue.
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