: Apple technicians generate a unique hash from your machine (using a specific key combination like Shift-Control-Option-Command-S ) and use a proprietary tool to create a removal file tailored to your specific serial number. 2. Method by Mac Generation
Lenovo utilizes a "Supervisor Password." efi firmware passcode remove
It sounds like you’re referring to a review or comment about removing an EFI (Extensible Firmware Interface) firmware passcode — a security feature on Macs and some PCs that locks the boot firmware. : Apple technicians generate a unique hash from
Some manufacturers maintain a list of "master passwords" generated based on the serial number or the "System Disabled" code displayed after failed login attempts. This is common with older Dell, HP, and some Acer laptops. Some manufacturers maintain a list of "master passwords"
The safest and only official way to remove a forgotten EFI password is to visit an Apple Store or an Apple Authorized Service Provider.
Select (or Firmware Password Utility on older systems). Select Turn Off Firmware Password . Enter the existing firmware password to confirm the change. 2. Official Assistance (Password Forgotten)