I have a firmware on my computer and I need it reset

Forgotten Firmware Password

If you lost or forgot your firmware password - Apple Support.

If you forgot your firmware password, schedule an appointment with an Apple Retail Store or Apple Authorized Service Provider. If you plan to visit an Apple Retail Store then make an appointment at the Apple Genius Bar for service. If needed find an Apple Store - Find a Store - Apple.

Set a firmware password on your Mac - Apple Support

Scroll to the bottom of the article to the section "If you forgot your firmware password".