I want to update my phone but I am rooted, how can I move forward?

[AC Question]

I want to update my phone but i am rooted

Hello,
Ive seen that superuser app has a "uninstall root", does it work? Can i update my phone if i use it? Currently im not even allowed to search for updates!

Or else, how do i unroot my phone? I installed my root 2013 with odin,

I have a note 2