- Jul 25, 2017
i have same model but i have intel hd 4000did not find if the MBP mid 2012 non retina works... so I tried my self.
My steps: MBP mid 2012 with BigSur (patched) SSD with BigSur (cloned for installation)
Download InstallAssistant Package from post#1
open terminal type:
sudo /Applications/Install\ macOS\ 12\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/USBNAME
Download and open Nightly OpenCore-Patcher
#1 build OpenCore
#2 Install OpenCore to internal Drive
reboot and choose opencore boot
start installation MacOS 12 beta over MacOS 11 - after a while it's done and works. BUT only with the Nvidia GPU even if I disconnect the external Display - GPU is still active.
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