LG UltraGear 27GK65SB Owner's Manual page 29

OSD Lock
General
Information
Reset to Initial
Settings
This feature disables the configuration and adjustment of menus.
On Enables OSD Lock.
Off Disables OSD Lock.
NOTE
• All features are disabled except Brightness,Contrast in Picture Adjust, Input, OSD Lock and Information in General.
The display information will be shown Total Power On Time, Resolution.
No Cancel the select.
Yes Returns to the default settings.
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