DXG Technology DXG-517V HD - Manual (Page 64)

If you select Delete All, press the scroll wheel inwards to
display the submenu.
3. Use the scroll wheel to select √ and then press the scroll
wheel inwards to delete.
4. Press the MENU button again to exit the menu.
• Note: Once deleted, files cannot be recovered so make sure
you have a backup before you delete. Files that have
been protected will not be deleted. You have to unlock
the files first before deleting them.
54