If you are on an Intel-based Mac (T2 chip or older), Apple has a specific trick.
Before attempting to remove the EFI firmware password, keep in mind:
So, how do we get rid of it? Let’s look at the methods, from the legal to the physical. remove efi firmware password
There is a persistent myth that removing the CMOS battery removes the password.
If none of the above methods work, you can contact the manufacturer's support team for assistance. They may be able to provide you with a master password or help you reset the EFI firmware password. If you are on an Intel-based Mac (T2
Manufacturers like Microsoft (Surface) and Apple (Apple Silicon M1/M2/M3) have fused the EFI lock to the SoC. The only "fix" is replacing the entire logic board, which usually costs more than the device is worth.
: Click Turn Off Firmware Password , enter the existing password when prompted, and then restart your Mac normally. If You Forgot the Password There is a persistent myth that removing the
: Once the Utilities window appears, click Utilities in the menu bar and select Startup Security Utility (or Firmware Password Utility on older models).