AMD EFI testing platform： CPU：AMD 3700X MotherBoard:ASUS TUF B450 TUF PRO Gaming GPU： ASUS STRIX 5700XT SSD：WD SN750 500GB
MacOS：10.15.7 （EFI） 11.0.1（EFI2） EFI3 updated Opencore 0.6.4 to better adapt to Macos 11.0.1.
EFI2.9.7 update is Opencore 0.6.7 version. Support Big sur. EFI4 is update,but I have sold my 5700xt,I can't test the EFI4. After my personal test, the audio that comes with the motherboard can be output from the I/O on the front of the chassis. I haven’t debugged the input yet. The system recognizes it as Intel i5 and the graphics card recognizes normally. I haven’t tested the edited video yet.

If you encounter problems, please leave your valuable comments Supported the big sur support, audio, start-up no problem. In EFI2 and EFI, it can be used as long as three codes are injected. HFUT（合肥工业大学）

I have update the latest EFI for MacOS,which I packed in .ZIP files.If your AMD card is not 5700XT series .please choise the EFI without 5700XT series.

because I am a student ,and I am preparing for the exam. I don't have enough time. But I will try my best to update the EFI.thank you for your apply.