Default Updated 4.3 without trippin knox counter.

I want to update to 4.3 or 4.4. I also don't want to trip the knox if I don't have too. Am on jellybombed and I like it but there are a lot problem I don't like. There are two thing I want to do. First I want to uodate and second I want keep my external sd as my internal. I have read a couple a threads but I want make sure I do anything. I can flash 4.3 rom but there few problem with it. That fine. If I update and root. I will trip the knox.

So my question is how do I update without trippin knox. Which rom let me swap extsd to my internal.

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