SM-920T How to Unlock without Rooting

i been unlocking a few SM-G920P and they unlock just fine same with SM-N920P but I can not get the same results with the T-Mobile version G920T which i don’t understand since they are pretty much the same phone yet it state I need to root it to do so. My boss does not wish to do that as some of these are still withing the manufacture warranty unless there is a way to root it without tripping KNOX

I remember i had a similar issue with N910T and you guys recommended download a modem for unlock oct file that you have on the support site and it worked wonders. If you have something like that for the G920T it might work again right? I tried that SBOOT file but that didn’t do anything.

Platform: Samsung Android
Selected port: COM1
Selected model: SM-G920T
Detected phone model: SM-G920T
Firmware compiled date: Mon Nov 30 10:58:17 KST 2015
PDA version: G920TUVS3DOJC
CSC version: G920TTMB3DOJC
SW version: G920TUVS3DOJC
Phone SN: R58G70KKWYV
Android version: 5.1.1 (LMY47X)
Country: USA
HW platform: exynos5
HW Chip: exynos7420
HW Modem: SHANNON333
Codename: zerofltetmo
Checking Root:
Phone is not Rooted.
Phone unlocking failed
Performed by 2.2.6 software version