How to install TWRP on note 3 without triggering the verizon unauthorized software?

I tried installing TWRP using flashify, but when I try it fails to boot, giving a message saying "system software not authorized"

But I need TWRP to install custom ROM's like
http://forum.xda-developers.com/veri...build-t3364382

So how do I install TWRP properly?