Samsung SM-T377P User Manual - Page 262

 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 and tap ON/OFF next to Make pattern visible 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 and Security > Screen lock type. Use a Screen Unlock PIN 1. From the Screen lock type menu, tap PIN. > Settings > Lock Screen 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. Settings 254