All the tools and exploits used throughout this video belong to their respective developers. I'm in no way taking credit for their work, more so spreading the work with which they have done.
Downloads. for this tutorial- https://drive.google.com/drive/folders/0B7cx0_dck_JdenJmX2RoMGViU0E?usp=sharing
Backup Downloads if G-Drive is having issues-
Main page with all the information- http://forum.xda-developers.com/v20/development/h918-recowvery-unlock-v20-root-shell-t3490594
Page with know how onto run exploits- https://github.com/jcadduono/android_external_dirtycow#running
ROM for you to try- http://forum.xda-developers.com/v20/development/h819-nrd90m-modded-stock-rom-t3503658