How to connect my nexus 4 to my mac and my screen isn't working to put the pin!

[AC Question]

Hey Guys!
My nexus 4 dropped in water and i putted in Rice like i found on the web! But i am terrified that the phone won't work anymore! Its turning on but i can't type the PIN! Well what to do, i don't wanna loose my file! Any idea like logging in with my email or something else!