For all Macs (2011 and newer), Apple’s official stance is that only they can reset a forgotten firmware password. mac-efi-firmware-password.md - GitHub Gist

Many manufacturers (Lenovo, Dell, HP, Acer) generate "backdoor" master passwords. These are calculated based on the "HASH" code displayed after three failed password attempts.

Removing the EFI firmware password can be a bit tricky, but it's doable with the right methods. If you're not comfortable with the process, it's always best to contact the manufacturer's support team for assistance. Remember to take necessary precautions and be aware of the potential risks involved.