Samsung PN51E6500EFXZA - Manual (Page 135)

and Security Key to establish the
connection.
4. If the Enter security key screen
appears, go to step 5. If you selected
a wireless router that does not have
wireless security, go to step 7.
5. To set up wireless security, enter the
Security Key or a WPS PIN using the
keyboard on the Enter security key
screen.
N To enter letters, highlight and