Samsung Galaxy S6 Active why isn't the lock screen working?

[AC Question]

Samsung Galaxy s6 active why isnt lock screen working

I've tried to set a lock screen up on my phone, I went to settings tried a pin it set then I locked my phone and it didn't even ask for my pin it just unlocked, I've tried to reset my phone but it just won't work

 

[belodion]

Re: Samsung Galaxy s6 active why isnt lock screen working

Welcome.

Try Safe Mode, to test whether a third-party app is causing trouble.