Can't turn off lock screen.

[SirMcParty]

Hi guys. Just bought xperia xz premium and updated to oreo 8.0, and I can't seem to turn off lock screen. Options are always gray, even after I clear credentials. Any ideas? 

[Trane]

I don't have this problem 

Do Reset factory and check it

[najodleglejszy]

@SirMcParty does the same thing happen when you're in safe mode?

[Leona_1]

Does not have the Option "NONE"  on "Choose screen lock"... How to get option NONE,please ??