I'll be glad to help with your LCC update question. You may use the LifeCycle Platform Update menu (press F10 during post). See the link below to our DellTechCenter guide. Ensure your network is setup first within the LifeCycle Controller network setup section.   Let us know if that works for you.    
Trying to upgrade the Lifecycle Controller software on an R320 with no OS installed.  Only options I can find for download are DUPs for Win and Linux.  How would I go about updating the LCC with no OS installed?  Have LCC version 1.4.0.128 and trying to go to 1.4.2.12.
How to upgrade Lifecycle Controller with no OS