Issues from S command

[J80]

Hello, I was given a password protected MacBook that I am trying to factory reset. previous owner does not have the password.
after I get to the s+command screen I get this (HID: Legacy shim 2) and (-sh-3.2#) when I press enter. please help!

 

[Cory Cooper]

Hello and welcome.

• Which exact model Mac?
• Which version of OS X/macOS?
• Is it an account login password or a firmware password prompt at startup?

C