This really worked, nice!Hey buddy while I remember I thought I would tell you how to get your ethernet working as somebody just told me a new method so I thought I would pass it on to you.
all you got to do is go into the config.plist and add the following to your boot arguments.Then save and restart and your ethernet should come to life.Code:
BTW, I got Big Sur fully running now. I somehow had a problem (Don't know what exactly) and installed Catalina first and upgraded from there. Then I used the EFI you provided me with and everything works perfectly! Thanks again. Gotta wait for the new wifi adapter now and then my build is finished.