Unlock Efi Password Top
Unlocking an EFI (firmware) password on a Mac is a high-level security procedure that varies significantly based on the device's age and hardware security (e.g., whether it has a T2 security chip or Apple Silicon). Executive Summary
Precautions
The Last Resort: If the Apple ID is unknown and you have no receipt, these devices effectively become "parts only" machines. Summary: Which Method Should You Choose? If you have the receipt: Go to Apple. If it’s an old Mac (Pre-2012): Try the RAM trick.
If the above method doesn't work, you can contact the device manufacturer's support team for assistance. They may be able to provide you with a reset code or help you reset the EFI password.
To avoid getting locked out of your computer due to a forgotten EFI password, make sure to:
If you are the legal owner, Apple can remove the lock for you.