I was trying to update from firmware version 2.04.72 and boot block 2.04.10. I started by updating to firmware using instructions from EFI live dated March 12 2010. But I could not find all the previous firmware’s and boot blocks to follow the sequence of updates listed in the instructions. So I jumped to firmware v 2.07.140 and when I went to do the boot block the FSv2 was unresponsive. So I figured I needed to do what Blacky said in post #155.