Originally Posted by UberSlackr
Only company email account used on the account is accessed through Gmail.
The "Lock Screen" was the selected option, until I tested out the PIN. But then when I went back into setting, Lock Screen and the other two were greyed out. So I can't remove the PIN now.
So I had this problem but only after this most recent update beginning may. And what I did was go to setting, then security, there should be a credential storage area. I cleared the credentials went back to lock screen and it wasn't greyed out anymore. I don't even know what activated this because all I did was add a pin just like you and then wanted it off and I couldn't. But I solved it. Hope it works for you. Good luck