
You can use the Samsung service menu, for such things as resetting the digital tuner, a total factory reset and enabling/disabling hotel mode. In this mode you must be careful as you can cause irreparable damage to your set.
In order to be able to access the service menu, you will need to have a Samsung Basic/Full Remote rather than the Samsung Smart remote which comes with some UHD TVs.
Method 1
Put TV on standby and then push in series these buttons on the remote: 'info, menu, mute, power' the TV will then turn itself on and display the service menu.
Method 2
Turn the power off. On the remote, press Mute followed by 1, 8, 2, Power in sequence.
Method 3
With the TV in standby, press the {DISPLAY} {P.STD} {MUTE} {POWER} on the remote.
Method 4
With the TV in standby, press the {SLEEP} {P.STD} {MUTE} {POWER} on the remote.
Method 5
With the TV in standby, press the {DISPLAY} {MENU} {MUTE} {POWER} on the remote.
Method 6
With the TV in standby. On the remote, press Mute followed by 1, 1, 9, Enter in sequence.
Samsung LCD Monitor Service Menu
Power on the lcd monitor and open the OSD menu.
Set the Brightness and Contrast to 0.
Then press and hold the "SOURCE or ENTER" button for 5 second until the
"SERVICE FUNCTION MENU" pop-up.