- Jul 3, 2010
- Gigabyte Z390 Designare
- RX 5700 XT
- Mobile Phone
I actually tried that yesterday, even went back to BIOS f9i because of the Thunderbolt/USB issue. Same effect. I think I'll just stay on OC 0.6.5 for now. It's extremely stable for me. Maybe OC 0.6.7 will be the ticket later. Thanks!Bootstrap folder and Bootstrap.efi have been deleted in OC 0.6.6. Their functionality has been replaced by LauncherOption within Opencore.efi.
Anyway, please try a CMOS Reset and configure BIOS parameters again, starting with F7 (Load Optimized Defaults). Then see if Big Sur can reboot properly with OC 0.6.6.