philips monitor The Main Menu displays OSD MAIN MENU LOCKED . Pressing the front control panels has no effect. How can I unlock this function?

 

The Main Menu displays OSD MAIN MENU LOCKED . Pressing the front control panels has no effect. How can I unlock this function?

https://www.philips.co.nz/c-f/XC000007452/the-main-menu-displays-osd-main-menu-locked--pressing-the-front-control-panels-has-no-effect-how-can-i-unlock-this-function

Press and hold the OSD menu key for about 15 seconds until picture displays “OSD MAIN MENU UNLOCKED”.

when this happens , the power button may not work

I just fixed my monitor

dad should be proud of me