A lot of people have been hard bricking their device, a lot more than usual, probably because Kit Kat touches the bootloader, so i'm simply asking to you prevent and keep and image of your system dump on your SD card using this tool.
In case of a hard brick, this will allow you to restore your system image and potentially save you big $$$.
This only works if you are already on 4.4
Simply flash this in recovery, save it on internal SD then copy to external SD and keep a copy on your PC
Dropbox link: https://dl.dropboxusercontent.com/u/...or_debrick.zip
Thanks to ValenteL for modifying this tool to work on our Note 3