How to lock - unlock the OSD menu of an MDSC-8255 and MDSC-8231 | Barco
Philips Monitor controls locked/not receiving video input (monitor is plugged in and gpu works with different monitor, trying to unlock controls doesnt work) : r/pcmasterrace
Lock/Unlock,Burn - Philips 150S6FB/27 Service Manual [Page 9] | ManualsLib
Amazon.com: Philips Computer Monitors Philips 271B8QJEB 27" monitor, Full HD 1920x1080 IPS, HDMI/DisplayPort/DVI-D/VGA, speakers, USB 3.0 hub, SoftBlue, Flicker-Free, Ergonomic base, VESA, TCO Edge : Electronics
LCD Monitor Service/Factory Menus | Gough's Tech Zone