[REQUEST] Whitelist Removal Lenovo ThinkPad T420 4180-BC7 (BIOS ver 1.46)

Hi there, total nubie on mods for Lenovo,

Have a Lenovo T420 4180-BC7 with the latest BIOS 1.46
Model: 4180-BC7
Current Bios: 1.46 BIOS Version/Date LENOVO 83ET76WW (1.46 ), 7/5/2013
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/83uj28us.iso

Current WWAN:Intel Wifi Link 5300 AGN

Installing: Intel 7260HWN AC

I've seen a few threads here but not sure what to do....SLIC2.1, UEFI, etc....

so far, i've seen that all that needs to be done is run the modified 83ET76WWbios as Admin, but nor sure what the other SLIC, UEFI, and such are for...

Thanks for the help,