It didn't worked for me, Macbook Pro 5,5. It needs to boot 4 times, and then in the 5th boot apple's EFI works. Of course I tried with my macs version, but nothing... :(
Maybe installing another EFI like rEFIt ?? I can't afford now buying new logic board...
Thanks guysm, I thought i was the only one with this problem...
I have the same problem as you.
I've just tried the tutorial on http:// pubmem. wordpress. com/2011/ 04/09/flash- efi-firmware- update- manually- on-a-macbook- 51/
It didn't worked for me, Macbook Pro 5,5. It needs to boot 4 times, and then in the 5th boot apple's EFI works. Of course I tried with my macs version, but nothing... :(
Maybe installing another EFI like rEFIt ?? I can't afford now buying new logic board...
Thanks guysm, I thought i was the only one with this problem...