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? Is Quartet USB Core Audio Class Compliant? When updating Quartet's firmware, application is stuck on 100% It says “No Apogee Systems Found” in Apogee Maestro or Control software and my interface is not recognized Comments 0 comments Article is closed for comments.