How to Setup Bluetooth Unlock Lockscreen on Sony Xperia Z3

One of the Lockscreen features on Sony Xperia Z3 is Bluetooth Unlock. This is somewhat secure but if your device is disconnected from other Bluetooth® devices, then you need to unlock the screen using a PIN or a Pattern. So it doesn't really make a difference when you have a PIN or a Pattern unlock lockscreen. Anyway, below is the steps on how to setup the bluetooth unlock.

To change screen lock type

1. From your Home screen, tap Apps icon.

2. Find and tap Settings > Security > Screen Lock.

3. Follow the instructions in your device and select another screen lock type.


To unlock the screen using the Bluetooth unlock feature

Warning: Make sure that your device and other Bluetooth® devices are paired before you use the Bluetooth® unlock feature. For more information about pairing, see To pair your device with another Bluetooth® device on page 110.

1. From your Home screen, tap Apps icon, then find and tap Settings > Security.

2. Tap Screen lock > Bluetooth unlock.

3. Tap Continue and select the device that you want to use to unlock the screen, then tap Continue.

4. Choose an option as the backup lock to unlock the screen when no Bluetooth® devices are connected.

5. In other Bluetooth® devices, find and tap the name of your device under Settings > Bluetooth > Paired devices. When Connected appears on the Bluetooth® devices, press the power key on your device immediately.