Wow...I took out al the parts, and reassembled the chip, and it told me it couldn't even detect it.
But then i disassembeled it, and reassembeled it AGAIN and it gave me the 09 00 error (never thought i would be happy to see it)
But then i tried the 4 switch trick, and it worked ... ?
In the tutorial though it says that other errors may be cause by the ribbon cable or bad soldering. (i hate that damn ribbon cable :|)