updating to 4.4 or later

[AC Question]

I have a S4 SM-S975SL and I want to update from 4.3 to anything 4.4 or later. I'm pretty technically inclined but there are so many different things out there. If anybody could help me out that would be great.

 

[VW Maverick]

Welcome.
What carrier do you have?

Mav.

 

[neowurm]

Straight talk. I tried to use towelroot and it said it wasnt compatible.