how to get macos big sur on unsupported mac

Note 2: Mac Pro users with NVMe drives should be wary of installing 11.3 as well due to the device being present resulting in boot issues.

We highly advise users to stay on 11.2.3 or older until we've resolved the issue.

Note 1: with macOS 11.3 Beta 2 and newer, there is heavy display artifacting on AMD GPUs during sleep wake, display resolution changing and connecting external displays.

And building off the foundation ASentientBot had laid with their Nvidia Acceleration Patches, we were able to get AMD's TeraScale 1 series, Intel's IronLake and Sandy Bridge series all working fantastically! However please keep expectations low, as these patches are still in beta and are under heavy development. Overall we're insanely impressed with the progress made regarding acceleration support and have to give a huge round of applause to our very own While not perfect, these acceleration patches are very much usable and even daily drivable for those willing to tolerate the odd visual glitches here and there. You all are doing an amazing job with this patcher, thanks a lot for your immense efforts to keep old machines like mine in touch with 2021 ^^ I've got no problem staying on 0.0.22, but I reported my case hoping it can be helpful for future developments

I assume for some reason OCLP after 0.0.22 doesn't create ist correctly for my machine for some reason, or I'm doing something wrong. I've tried 0.0.23, 0.1.0 and 0.1.1, none of them gave me brightness control so I reverted back to 0.0.22 and now everything works fine, even in macOS 11.3. Previously I had macOS 11.2.3 installed with OCLP 0.0.22 over a pre-existent 11.2.3 partition installed with barrykin's big-sur-micropatcher.Įverything there worked absolutely fine AND I had brightness control perfectly working too. When I build OpenCore it detects my card and says that it installed the relative patches, but when I reboot (with or without SMC/PRAM resets), I always have brightness at full tilt. In 'Patcher Settings' I disabled point 12 'Set Acceleration Patches' and even set point 4 'force iMac Metal Patch' to 'NVIDIA GPU', as I have a K1110M. Today I installed macOS 11.3 from full USB stick installer on my iMac11,2 21.5' Mid-2010 with i7-860S, flashed K1100M and upgraded BCM94360CD (see photo attached), using OCLP 0.1.1 on internal SSD EFI.Įverything works perfectly fine, except for one thing: brightness control.

How to get macos big sur on unsupported mac