ViewSonic VA2456-MIKU User Manual page 24

Key Description
2 + 4
Press and hold the keys to lock/unlock the
When the menu appears on the screen, continue holding both keys
for 10 seconds to lock/unlock the
If the Power
screen:
3 + 5 Press the keys to display/hide the boot up screen when the device is
turned on.
Power Lock/Unlock
Locking Power Button
Press and hold for 10s
button is locked, the below message will appear on the
Power Lock/Unlock
Power Button Locked
Boot Up Screen On/Off
Press to turn on
24
Power
Power
button.
3
to lock power
Off
button.