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 Is Quartet USB Core Audio Class Compliant? When updating Quartet's firmware, application is stuck on 100% Quartet: Is the long thumb screw on the back an earth ground connection? 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.