Diagnosis
The white/blue power indicator LED on the front-bottom bezel has no dedicated hardware switch to disable it.
How to Fix It
The LED can only be controlled through the On-Screen Display (OSD) settings menu. Press the joystick button to open the OSD. Navigate to the 'System' or 'Setting' menu (represented by a gear icon). Look for the option 'Power Indicator' or 'LED Indicator'. Select it and change the setting from 'On' to 'Off'. This action only affects the front power LED, not the backlight.
If That Didn't Work
If the 'Power Indicator' option is missing or grayed out, perform a factory reset on the OSD. Navigate to 'System' > 'Reset' (or 'Factory Reset') and confirm. This will restore all OSD menus, including the LED control option.
Heads Up
Disabling the power LED does not affect the monitor's operation or its power-saving features. The monitor will still enter standby (orange LED on the power button itself, if visible) when the signal is lost.