Mi5 Locked No Updates

Oct 1, 2016
Hi guys , i have a problem.
Mi mi5 came with locked Bl and fake Rom. I deepflashed intl dev rom and got rid of the fake rom. I still dont get updates in updater app. If i download latest rom from miui site, rename as update.zip i can flash the rom with no problems (did it twice already) but when i hit the check for update button ... No update available... Point me in a direction pls thanks