Turn off Smart Lock
Swipe down from the top of the screen once using two fingers, or twice using one finger.
> Security > Smart Lock.
Enter your password, pattern, or PIN, and then tap Next.
Do any of the following:
• Tap Trusted devices. Tap a device, and then tap Delete.
• Tap Trusted places. Tap a location, and then tap Delete.
• Tap Trusted face. Tap Remove trusted face, and then tap Remove.
• Tap Trusted voice. Turn off the Trusted voice switch.
• Tap On-body detection. Turn off the switch.