If you want to downgrade your MacBook Air 2017 from macOS Sequoia to Sonoma without using OCLP, and then update your iMac 2017 from Ventura to Sonoma with a fresh start using OCLP, follow this structured guide to ensure a smooth and safe transition. Step 1: Downgrade MacBook Air 2017 to macOS Sonoma Without OCLP Since the MacBook Air 2017 natively supports macOS Sonoma, you can completely remove OCLP and reinstall Sonoma. 1. Backup Your Data Use Time Machine or another backup tool to save all important data. Confirm your backup is complete before proceeding. 2. Create a macOS Sonoma Installer USB On a working Mac, download macOS Sonoma from the App Store . Use the createinstallmedia command in Terminal to create a bootable USB: bash Copy code sudo /Applications/Install\ macOS\ Sonoma.app/Contents/Resources/createinstallmedia --volume /Volumes/YourUSBDrive Insert your formatted USB drive, replacing "YourUSBDrive" with the USB name. 3. Erase and Reformat the Drive Insert ...
SOLUTION: Reverting and Updating MacBook Air 2017 and iMac 2017 – Using OpenCore Legacy Patcher (OCLP) for macOS Sonoma