Question [Q] Right software/rooting

So I wanted to upgraded to 4.4.2 and had trouble so I went and installed stock rom that had 4.4.2. Is the software for sprint note 3 suppose to be N900PVPUCNAB ? And I tried rooting it with the previous method of cf auto root. I saw the orange pirate when it restarted but it did not install super su so I was unable to root. So do I have the right software...and was it on upgrading like this to 4.4.2 and how do I root now?