Samsung UN60ES7150F - To Use the Lock Function

steps:
1.
Select an application, and then open
the Tools menu using your remote.
2.
Select Lock. The Security window
appears.
3.
Enter your security PIN using the
remote. If you have not created a
PIN, enter “0-0-0-0”.
4.
A confirmation message screen
appears. Select OK. The message
screen closes and a lock symbol