Dell LCD Monitor Service Menu Instructions
- Press and hold the "AUTO" & "+" button some model use "ENTER" and "+" button, then power on the lcd monitor. #Then Press the "MENU" button to open the osd menu.
- In the bottom of OSD menu, you will notice an extra selection called "FACTORY".
- Select "FACTORY" and press the "ENTER" button and you're login to the dell factory service mode.