Reboot your Mac while holding the Option (Alt) key, then boot from the USB drive. Install macOS as normal. After installation, open OCLP again and click "Post-Install Root Patch" → "Start Root Patching", then restart your Mac.
To avoid malware, always download OCLP directly from its official development source.
It is crucial to download OCLP only from official sources to avoid malware. The only official repository is the Dortania GitHub page . Steps to Download and Install open core legacy patcher download
OCLP supports a massive array of vintage Apple hardware, generally spanning from 2008 to 2017. This includes: 2008 and newer iMac: 2007 and newer Mac mini: 2009 and newer Mac Pro: 2006 and newer Preparation Checklist
Click , but this time choose your internal storage drive and its EFI partition. This allows the Mac to boot modern macOS without the USB drive attached. Reboot your Mac while holding the Option (Alt)
After installing any macOS system update, your custom hardware drivers may be overwritten. OCLP will usually display a notification upon reboot offering to re-patch your system. If it doesn't, simply open the app manually and run Post-Install Root Patch .
Inside the OCLP interface, click on the button. Select Download macOS Installer . To avoid malware, always download OCLP directly from
Within OCLP, select "Create macOS Installer". Choose the macOS version you wish to install—Big Sur, Monterey, Ventura, Sonoma, or Sequoia are all supported. The download may take 30–60 minutes depending on your internet connection.