Format your media card or built-in media storage
Depending on your BlackBerry smartphone model, you might not be able to format your smartphone's built-in media
Storage space and media cards
CAUTION: 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 issue.
On the home screen or in a folder, click the Options icon.
Click Device > Storage.
key > Format.
Complete the instructions on the screen.