[Q] Rooting without warranty voiding ? Possibility of knox counter resetting ? topic

As topic says. I've tried to root my samsung galaxy s3 LTE (GT-i9305) using towelroot with various modstrings and using compiled c source of towelroot (tr_c). But it didn't worked.
So im wondering if it is possible to root my phone and then reset knox counter or to root phone without tripping knox counter.

My phone specs are:
GT-I9305 (Orange branding)
Android 4.4.4
Modem version: I9305XXUFNJ1 (or is that baseband?)
Kernel: 3.0.31-2918012
dpi@SWDD6006 #1
Wed Oct 1 20:31:28 KST 2014

Version number: KTU84P.I9305XXUFNJ1


Would appreciate any help.