I did put step by step on there, but qbking77 did have a video doing this on his YouTube channel.
edit: went onto my pc because i was right there and was using it while writing my previous post:
How to Root Samsung Galaxy Note 2 [ALL VARIANTS] - YouTube
qbking77's video on how to root the phone. if you're running MA7 (4.1.2), the LJC option SHOULD work just fine, i've used it once. (option 42 on main screen)
and of course, you WOULD WANT TO CHOOSE A ROOT OPTION THAT INCLUDES A CUSTOM RECOVERY, so you can put the Revert to LJC files on your SD card, go into recovery mode (easiest way, from power off, hold volume up, home button, and power at the same time... with TWRP, it'll start with the normal Samsung Galaxy Note II screen, followed by a "TEAMWIN" blue screen. You would want to choose the "WIPE" option, Factory Reset (will clear all data, so if you have anything on your phone you want to keep, i suggest saving it to your PC before doing this step). use the back button in the bottom right, go to install, navigate to the Revert to LJC zip (wherever you put it on your SD card - make sure you save it to your external SD card, or else you are in for problems here) and let it do its thing. Step by step instructions are in the download thread.)
~swyped from my galaxy note 2 on the now network