Thats sucks. Its Apple's responsibility to ensure their firmware updates dont cause any damage.
I'd call them for support directly/start a support ticket rather than just leave a message on their forums. If its still under warranty, I'd even take it back to point of purchase if it was bought from a store.
Support provided by apple differs depending on where you are - if youre in finland, best dig around on the finnish(suomi) support page and see what it says.