![]() Booted again to USB and continued like usual. With a wifi or ethernet connection it went through the installer update and was happy. ![]() ![]() It failed until the internet connection was established. Apparently the installer needs to peek at Mac server to see if it knows the Mac is enrolled in a management scheme and update, or it may be confused by mac T2 chip. 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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