there are no updates in the catalog for the r320 at this time. There may be some on the support site, but those havnt been added to the catalog that LC2 uses. yet. 
I just got R320. it has lifecycle controller 2. tried update platform. after few different popup windows got: "no update is available. make sure that the windows catalog and update packages for windows used." network test works fine. windows 2008 r2 is installed. help please
LC2. Fails to update platform using ftp.dell.com