No Mobile Network option on Samsung Galaxy S6 Sprint SM-G920P

I rooted the galaxy and unlocked it with idoneapps. It was successful, but now I can not get to Mobile network option. There is no option in the connections list. I also tried to edit quick settings and I see the option. I tick to enable it, yet it is not there either. I have tried a few random fixes like the dual view fix or whatever that is called.
Does anyone have a solution for this? Thanks.