Question: how to fix the screen on a keurig 2.0?
Answer: Unplug it.
Wait 30 seconds.
Plug it in.
If you see the digital image of the power button, choose the menu and set the clock to the correct time. ... 
Reset your personal preferences in the various menu options.
Return to the main screen.
Lift the brew handle.
You should now see a prompt to start a new brew.