Here is a site I found that appears to be able to root to 4.4.4 NH7 by swopping kernels without tripping KNOX. The DL's for Sprint devices are on the bottom of the site. I have not tried it yet, but it's worth a look here is the link http://www.w0lfdroid.com/2014/09/To...4-S5-and-Note3-Android-4.4.2-NF-or-Later.html
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