For many models, if the carrier didn't push out the upgrade you have to do it yourself. You research XDA Forum where you find tools and ROMs to go off the reservation.
That's it. It's that simple.
model # - SM-G935V
Android verzion - 6.0.1
baseband version - G935VVRU4AP13
build # - MMB29M.G935VVRU4AP13
i cant seem to find where in my phone that i can upgrade the software version. I have received any OTA for a software upgrade too