Keyboard not working at all, powerbutton/trackpad works
I have a MacBook Pro 13" mid 2010 with a faulty keyboard. Not a single key is working. I'm almost certain it's the keyboard itself. The trackpad is working, but the weird thing is that the power button also is working fine. The power button is connected to the keyboard and goes through the same ribbon to the motherboard. If I fiddle the ribbon around a bit, strings of text are appearing on the screen.
What could cause this issue? And more importantly, how can I fix it?