![](/images/new-backgrounds/1169312/16931221x1.webp)
Option 2: OSD & Power button lock – all 5 buttons including the “POWER” button are locked. Press and hold the 1 button and the ▼ button for 3 seconds to lock all 5 buttons.
The LED LCD monitor will show an “Lock Out” message for 5~10 seconds and the message will disappear automatically.
Repeat this step to unlock.
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