Smart Lock automatically unlocks the device when trusted locations (work, home) or other devices (Bluetooth® headset, NFC tag) have been detected.
A secure lock type (PIN, pattern, etc.) must be configurar for Smart Lock to be available. Turning off the secure lock also turns off Smart Lock.
Desde la pantalla de inicio, ve hasta: el ícono Apps>Settings > Security (Personal section).
From the Screen security section, tap Smart lock.
Enter the current unlock method (e.g., PIN, pattern, etc.).
If prompted with 'What is Smart Lock?', tap GOT IT (located on the bottom-right)
Select any of the following available options then follow the onscreen prompts to set up a trusted unlock:
For more info on Smart Lock (editing, removing settings, etc.), refer to the Google support page.
Keeps your phone unlocked while you're carrying it on you (pocket, purse, etc.)
Set locations (home, work, etc.) to keep your phone unlocked whenever you're there
Set Bluetooth or NFC devices to keep your phone unlocked when that device is connected