Hi there, New here, so bare with me if I don't get the right words out at first!! I have a macbook which I'm trying to reset to factory settings, everything is fine apart from the letters p and u are broken on my keyboard. So when I hold ctrl+s on startup and begin typing commands i can't fully type some of them due to these letters being broken on the keyboard. My question is- 1. can i use an external keyboard for typing commands into the boot screen and how would I go about this? is there a certain command that would enable a wireless keyboard for example? 2. are there any other commands I can use that don't require the letter 'u' 'p' to reset the laptop back to factory settings? Thanks in advance - Ad.