OPTOMA PROJECTOR CONTRAL PANEL KEY LOCKED AND REMOTE CONTROL IR FUNNCTION DISABLED RESULT CANNOT MODIFY ANY FUNCTION HOW TO UNLOCK CONTROL PANEL KEY AND UNLOCK REMOTE CONTROL
Your problem same like me,just hold on the ENTER button 7 second and than press the SOURCE button,the projector will auto reset.
SOURCE: how to reset sony projector vpl-es2 without remote
Turn the projector on and leave in standby mode. To do this press the power on button for 10 seconds until the projector comes on.
To unlock the main panel keys, press the MENU button for 10 seconds.
SOURCE: my projector says all keys are locked.
Just hold the "ON" key for 3 seconds until it frees up the keyboard. Then hit the "standby" button twice to shutdown.
SOURCE: keys mounted on projector got locked accidently
With System-Lock input window onscreen, press the "MENU", "ENTER", "ENTER", "MENU", "ENTER", "ENTER" and "MENU" keys, in this order,
on the remote controller.
SOURCE: When I use the remote to power on the Dell 4610X
Hi there this mean you remote "power on button" is not working you need to get it fix or if you prefer you can replace the remote.
press the "Enter" key on the control panel for 7 seconds.
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