How do I clean Quartet's OLED display screen? Chris February 24, 2021 00:51 Updated To clean Quartet's screen, power down your Mac, disconnect the Quartet from the Mac and power source. Use a dry, soft, lint free cloth to gently clean the OLED display. Do not moisten the cloth or use any liquid. Related articles Quartet: Is the long thumb screw on the back an earth ground connection? How to change Analog Level via TouchScreen of Quartet Does Quartet work with Skype? Is Quartet USB Core Audio Class Compliant? Can the brightness of Quartet's Touchpads or OLED screens be adjusted? Comments 0 comments Article is closed for comments.