reset nvram on old macbook
how do i reset nvram on old macbook
MacBook
how do i reset nvram on old macbook
MacBook
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart or follow the steps here: https://support.apple.com/en-mide/HT201255
reset nvram on old macbook