- Joined
- Feb 10, 2019
- Messages
- 324
- Motherboard
- Gigabyte Z390 Designare
- CPU
- i9-9900K
- Graphics
- RX 580
- Mac
- Mobile Phone
Please try the attached EFI. This is taken directly from my working EFI folder. Serial numbers need to be added as shown. Also check that you are running Big Sur build 20A5395g.
View attachment 492220
All is well after i regenerated the SN!
Thanks!