Remove Efi Passcode Lock

: On some older models, you can bypass the lock by changing the RAM configuration. Remove one stick of RAM.

Many laptops store the password at a known offset (e.g., Dell Latitude: offset 0x1D in the variable store). Search for PASSWORD string in hex editor and replace with FF (null). remove efi passcode lock

The only officially supported way to remove a forgotten EFI lock is through Apple. : On some older models, you can bypass

On many 2012–2017 MacBook Pros and Airs, the EFI password is stored on a physical SOIC-8 chip on the logic board. WARNING: This requires micro-soldering skills. : On some older models

Here is the comprehensive guide on how to address a locked EFI. Understanding the EFI Lock