This error typically appears when trying to install or update macOS on a Hackintosh. It means the macOS installer attempted to update the firmware (EFI) of a real Mac, failed because you don’t have Apple hardware, and then aborted the installation.
If you need help with specific SMBIOS values or your config.plist , post your hardware details (CPU, motherboard, GPU) in a Hackintosh community (r/hackintosh, InsanelyMac, or AMD-OSX). a required firmware update could not be installed hackintosh