I have enabled password protection on the lock screen on my Nexus 5 Lollipop device:
After enabling password, I can't seem to be able to cancel it. Any idea how to go back to None or Swipe?
This works at my device:
Settings -> Security -> Deactivate Administrators. Deactivate anything listed.
Settings -> Security -> Clear credentials.
You can simply erase you security credentials in security and this will automatically allow you to remove the lock screen on 5.0
Check if your credentials in security, if you have an application that requires you to have a password and delete that.
Did you encrypt the phone ? That requires a password.
Also if you are a guest you cant, but i think you already are an administrator of your own device.
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