To Use The Lock Function - Samsung UN60ES7150F E-Manual

steps:
1. Select an application, and then open
the Tools
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
menu using your remote.