How to Remove a Firmware Password from a Mac

If you've set a firmware password on your Mac and now need to remove it, here's a comprehensive guide to help you through the process.

1. Start by turning off your Mac completely.

2. Press the power button and immediately hold down 'Command' + 'R' keys until the Apple logo appears to boot into macOS Recovery.

3. In the macOS Utilities window, go to the top menu and open 'Utilities' and then 'Terminal.'

4. In the Terminal window, type 'csrutil disable' and press Enter. This will disable System Integrity Protection (SIP).

5. Restart your Mac and boot into Recovery Mode again by pressing 'Command' + 'R.'

6. In Terminal, type 'nvram -d fmm-pref' and press Enter. This command will remove the firmware password.

7. Restart your Mac, and the firmware password should now be removed.

Remember to re-enable SIP after removing the firmware password by booting into Recovery Mode, opening Terminal, and typing 'csrutil enable.'

Following these steps should successfully remove the firmware password from your Mac. Keep your Mac secure by managing your passwords effectively and staying informed about cybersecurity best practices.