Comment 17 for bug 774089

Sorry for not being able to provide the logs, but ubuntu never booted and the disk was already reformated...

It seems there is a better solution then logic board replacment :)

I'm probably going to try this guide to reflash the efi firmware:

http://pubmem.wordpress.com/2011/04/09/flash-efi-firmware-update-manually-on-a-macbook-51/

wish me luck