How to Use Mac EFI Unlock Service to Remove Password on Mac?ĭo not worry that you cannot restore a macOS device with enabled EFI firmware passcode because you forgot it. During such a recovery, users often come face to face with the protection through the EFI firmware password.ĭownload The problem comes when a user wishes to reinstall the operating system on a Mac computer, erase the hard disk, repair, or restore the device using Time Machine. Users choose to enable the EFI password on T2 computers to protect their devices from untrusted firmware loads during startup.

UEFI stands for Unified Extensible Firmware Interface.

Every time a macOS device boots, it uses the Extensible Firmware Interface right before booting.Īs your computer is booting, it uses the memory-mapped from the T2 security chip to fetch the UEFI firmware. This system partition also includes your hardware's driver files. Your computer's operating system bootloader is contained in the EFI.

By this abbreviation, you can guess that the EFI firmware passcode is not the same thing as your regular computer password used for logging in or Mac Activation Lock. What Is EFI firmware password protection on Apple T2 security Chip?īefore you use Mac EFI unlock service, you should learn what EFI is and how this passcode protection works on Apple devices with the T2 security chip.ĮFI stands for the Extensible Firmware Interface.

Best mac cleaner software 2018