How do I completely remove a lock from my lock screen?

[AC Question]

I have an Alcatel one fierce Xl.

I set a pin lock on my phone but I an trying to remove it. Once I go back into my settings>lock screen, and try to take it off the option of no password is grayed out?

 

[Javier P]

Have you already tried clearing credentials in your security settings?

 

[dpham00]

If that doesn't work, try to backup your data and do a factory data reset