Select the patched USB drive (often labeled "EFI Boot" or similar). Install macOS:
The (specifically OpenCore Legacy Patcher) is a miracle of reverse engineering. It allows a 2012 MacBook Pro to run software designed for a 2020 M1 MacBook Air. Macos Big Sur Patcher
: They modify the macOS installer to ignore the hardware identification strings that would otherwise trigger a "This version of macOS is not supported" warning. Kext and Driver Injection Select the patched USB drive (often labeled "EFI
The existence of these patchers challenges the concept of planned obsolescence. Many machines, like the mid-2012 MacBook Pro, are notoriously modular and easily upgraded with 16GB of RAM and SSDs, making them more powerful than some of the entry-level Macs that officially supported Big Sur. By utilizing a patcher, users can extend the life of their devices, reducing e-waste and saving significant financial resources. Furthermore, these patchers grant access to critical security updates that would otherwise be unavailable on older OS versions like Catalina. Risks and Considerations : They modify the macOS installer to ignore
Launch the Patched Sur app. It can help you download the official installer directly from Apple. Create the Patched USB: