Dell S2425HS User Manual page 55

To unlock the button(s).
Press the left directional navigation of the joystick for four seconds until a menu
appears on the screen. The following table describes the options to unlock the front-
panel control buttons.
Options
1
Menu Button unlock
2
Power Button unlock
3
Menu and Power Button
unlock
Select Option:
Description
Use this option to unlock the OSD menu function.
Use this option to unlock the power button to turn
off the monitor.
Use this option to unlock the OSD menu and power
button to turn off the monitor.
Operating the monitor | 55