Learn how to set a Screen Lock on your Sony Xperia Tablet Z. There are several ways to lock your device screen. For example, you can use the Face Unlock feature, which uses a picture of your face to unlock the screen. You can also set a screen unlock pattern, a number-based PIN lock, or a text-based password.

To set a screen lock

• From your Home screen, tap Apps icon > Settings > Security > Screen lock.
• Select an option.

Note: It is very important that you remember your screen unlock pattern, PIN or password. If you forget this information, it may not be possible to restore important data such as contacts and messages. Refer to Sony Customer support for more information.

To set up the Face Unlock feature

• From your Home screen, tap Apps icon > Settings > Security > Screen lock.
• Tap Face Unlock, and then follow the instructions on your device to capture your face.
• After your face is successfully captured, tap Continue.
• Select a backup lock method and follow the instructions in the device to complete the setup.

Note

• The Face Unlock feature is less secure than a screen lock pattern, PIN, or password. Someone who looks similar to you could unlock your device.
• For best results, capture your face in an indoor area that is well lit but not too bright, and hold the device at eye level.

To unlock the screen using the Face Unlock feature

• Activate the screen.
• Look at your device from the same angle you used to capture your Face Unlock photo.

Note: If the Face Unlock feature fails to recognize your face, you need to draw the backup pattern or enter the PIN to unlock the screen.

To disable the Face Unlock feature

• From your Home screen, tap Apps icon > Settings > Security > Screen lock.
• Draw your backup screen unlock pattern or enter your PIN.
• Tap Slide.

To create a screen unlock pattern

• From the Home screen, tap Apps icon.
• Find and tap Settings > Security > Screen lock > Pattern.
• Follow the instructions in your device. You are asked to select a security question that will be used to unlock the device if you forget your screen unlock pattern.

To unlock the screen using a screen unlock pattern

• Activate the screen.
• Draw your screen unlock pattern.

Note: If the unlock pattern you draw on the screen is rejected five times in a row, you can select to either wait 30 seconds and then try again, or to answer the security question you have selected.

To change the screen unlock pattern

• From your Home screen, tap Apps icon.
• Find and tap Settings > Security > Screen lock.
• Draw your screen unlock pattern.
• Tap Pattern.
• Follow the instructions in your device.

To disable the screen unlock pattern

• From your Home screen, tap Apps icon > Settings > Security > Screen lock.
• Draw the screen unlock pattern.
• Tap Slide.

To create a screen unlock PIN

• From your Home screen, tap Apps icon > Settings > Security > Screen lock > PIN.
• Enter a numeric PIN.
• If necessary, tap V view icon to minimize the keyboard.
• Tap Continue.
• Re-enter and confirm your PIN.
• If necessary, tap view icon to minimize the keyboard.
• Tap OK.

To disable the screen unlock PIN

• From your Home screen, tap Apps icon > Settings > Security > Screen lock.
• Enter your PIN, and then tap Next.
• Tap Slide.

To create a screen lock password

• From your Home screen, tap Apps icon > Settings > Security > Screen lock > Password.
• Enter a password.
• If necessary, tap view icon to minimize the keyboard.
• Tap Continue.
• Re-enter and confirm your password.
• If necessary, tap view icon to minimize the keyboard.
• Tap OK.

To disable the screen unlock password

• From your Home screen, tap Apps icon > Settings > Security > Screen lock.
• Enter your password and tap Continue.
• Tap Slide.