I can't root a (At&t) Samsung Galaxy S4 as usual

[EpsilonS4]

Hey guys so I just recently joined to the forums, nice to meet you all.

The point of my post is to ask for help. For some reason I can't root this Samsung Galaxy S4 I got a few days ago doing the usual method I always use and by that I mean following this guy's tutorial,
https://www.youtube.com/watch?v=jgsaf8xeMI4

I was able to successfully root 2 Galaxy S4 androids previously with his method but for some reason I keep getting 'FAIL' from Odin with this one.
Anyone know what the problem is?

Carrier is At&t
It is unlocked.
Model is a SAMSUNG-SGH-I337
Baseband is I337UCUAMDL

Thank you

 

[Obsidian Lover]

If its running 4.4.4 Thats probably why; i'm having the same issues.