Hi Guys here is my Bootpack - I Installed HighSierra 10.13 and Update to 10.13.4 with this EFI Folder
to FIX Audio:
Install with Kexttool Apple_HDA_293Fix and EAPDfix.kext from /EFI/CLOVER/KEXT/OTHER/LE Reboot and
Have fun :)
Internal Mic works
Internal Speaker works
3,5" works with Headphones
https://www.file-upload.net/download-13151997/EFI.zip.html