Use a Screen Unlock PIN

If you fail to draw the correct unlock pattern on the screen after five attempts, you will be prompted to wait for 30 seconds before you can try again.

Note: Tap Secure lock settings > Make pattern visible and tap the On/Off slider to Off if you do not want the unlock pattern to display on the screen when you unlock it.

Note: To change your unlock screen pattern, from home, tap Apps > Settings > Lock Screen

and Security > Screen lock type.

Use a Screen Unlock PIN

1. From the Screen lock type menu, tap PIN.

2.Enter a PIN, tap Continue, re-enter your PIN, and tap OK to save the setting.

 The screen lock is set

If you fail to enter the correct PIN after five attempts, you will be prompted to wait for 30 seconds before you can try again.