Zia-Ur-Rehman Posted June 12, 2021 Share Posted June 12, 2021 I have successfully installed macOS Big Sur on my dell optiplex 3060 every thing work's except the mic it has ALC255 codec the internal speakers and front combo jack earphones speaker works but the mic of earphone does not work the back LINE IN port does nothing. I am using layout id 11 I have also installed the combo jack app but no luck, there is no pop up screen when plugging in the earphones. My EFI.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted June 12, 2021 Moderators Share Posted June 12, 2021 Try layoutid 13 or 27 Link to comment Share on other sites More sharing options...
Zia-Ur-Rehman Posted June 13, 2021 Author Share Posted June 13, 2021 When using id 13 I get the combo jack pop up but the mic still didn't worked I tried all 3 options Headphones,Headset and Line In. With id 27 there was no pop up and the mic also didn't worked of my earphones. Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted June 14, 2021 Administrators Share Posted June 14, 2021 try id 66 Link to comment Share on other sites More sharing options...
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