I just downloaded the UK(BTU) version for SM-G965F. No worries just back up your data with smartswitch it'll back up everything except whatsapp. And use csc not home csc for a clean and fresh install
yes it does there's no problem as long as the model is same like I have the SM-G965F. and also you need to check your csc if it contains oxm in the version check it by typing +#1234# in your dialer, there check csc number and see for oxm if u got oxm...