Depending on your BlackBerry smartphone model, you might not be able to format your
smartphone's built-in media storage.
If you format your media card or built-in media storage, all of the data that's saved to your media card or built-in media storage is deleted. Research In Motion
recommends that you regularly create and save a backup file on your computer,
especially before you update any software. Maintaining a current backup
file on your computer might allow you to recover smartphone data if your smartphone is
lost, stolen, or corrupted by an unforeseen