![]() Choose to boot from USB Key - On this attempt, there was a message stating "A software update required to use this startup disk".Press Option Key as soon as u see the Mac apple. ![]() Create USB boot stick with free program DiskMaker X.Download Catalina from Apple Store to a working Mac.Either way, the main disable happen from recovery mode. ![]() It used a USB for fresh install but the process may also work with a recovery mode configuration on a mac that is running already. ![]() This process worked to get a 2018 mac from eBay working with fresh install Catalina. ![]()
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