NAE is the new 4.4.2 TOUCHWIZ update that just came out for the phone. That's what I thought you meant. To go back to stock, if you mean stock unroofed. It would depend on what version of touchwiz you were on before. If you were on 4.2 then Odin a 4.2 tar. If you were on 4.3 with Knox then Odin MK2 kernel.
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