Apple makes some of the most durable hardware in the tech industry. It is common to find a 2012 MacBook Pro or a 2013 iMac that physically runs as well as the day it was unboxed. However, Apple regularly cuts off software support for older models, leaving perfectly capable machines stranded on older operating systems.
Input your Mac’s admin password to allow the tool to write the installer files.
Alternatively, the (by Ben Sova) includes a detailed README that serves as a thorough technical piece.
: The "full" patching process requires a technical comfort level that the average consumer may not possess. Conclusion: A Statement on Ownership
Patching your operating system carries inherent risks. Do not skip these preparatory steps: macos big sur patcher full
Modifying system files carries inherent risks. Use Time Machine or an external drive to back up all your critical files before starting.
Patched Sur was a highly popular, user-friendly graphical interface tool specifically designed for macOS Big Sur. It simplified the command-line process into a beautiful, easy-to-use application wizard. Late 2012 to 2014 Macs. Pros: Beautiful user interface, very easy for beginners.
Apple makes some of the most durable hardware in the tech industry. It is common to see a MacBook Pro or an iMac from 2012 or 2013 running perfectly fine on a hardware level. However, Apple regularly cuts off software support for older machines, leaving perfectly functional hardware stranded on outdated operating systems.
Not every old Mac works. The rule of thumb is: Apple makes some of the most durable hardware
Close Disk Utility, select , and follow the on-screen prompts. Your Mac will restart several times during this process. Phase 5: Post-Installation Root Patches
Apple officially restricted macOS Big Sur (version 11) to most Mac models released after 2013, effectively orphaning a decade’s worth of still-functional hardware. To bridge this gap, community-driven tools—popularly known as "patchers"—were developed to modify the installer and boot environment, allowing Big Sur to run on Macs as old as 2008.
Your Mac will restart several times during this process. The boot sequence must route through the USB drive's EFI bootloader until the installation finishes. Post-Installation Requirements
Back in the main menu, select "Build and Install OpenCore." This installs the necessary booting EFI to your USB. Phase 2: Installing Big Sur Input your Mac’s admin password to allow the
Open the app. If it’s your first time, it may prompt for administrator permissions. 2. Download macOS Big Sur In the OLP app, click "Create macOS Installer" "Download macOS Installer" macOS Big Sur from the list. The app will download the full InstallAssistant.pkg directly from Apple's servers. 3. Create the Bootable USB Insert your USB drive. In OLP, select "Create macOS Installer" again, then "Use existing macOS Installer" if the download is finished. Select the Big Sur installer and then your : This will erase all data on the USB. 4. Build and Install OpenCore to USB Go back to the OLP main menu and click "Build and Install OpenCore" Once built, click "Install to disk" Select your , then select the EFI partition on that drive. 5. Boot and Install macOS Restart your Mac while holding the Option (Alt) key Select the icon (with the OpenCore logo). You will then see the standard Apple picker; select Install macOS Big Sur Follow the prompts to install. You may need to use Disk Utility to erase your internal drive to format if performing a clean install. 6. Post-Installation Patches
: Since the hardware was never intended to run the software, minor glitches in graphics acceleration or sleep/wake cycles are common.
Select your (not your internal hard drive yet) as the target. This places the custom bootloader onto the USB stick. 3. Boot and Install Shut down your Mac. Power on while holding the Option (Alt) key . Select the EFI Boot icon (the one with the OpenCore logo). From the next menu, select Install macOS Big Sur .
This guide explains what the patcher does, which Macs it supports, and how to use it safely.