+Well, here's a test, folks. Today, EFI 1.8 was released (
http://support.apple.com/kb/DL975), and it does not appear to be targeted at this issue.+
+In fact, it does not even apply to the same set of machines -- EFI 1.7 applied to mid-2009 13" and 15" MacBook Pros, while EFI 1.8 applies to 15" and 17" MacBook Pros from 2008 and 2009 (MacBookPro5,1 and MacBookPro5,2).+
+My experience with replacing my hard drive cable is leading me to believe this is a hardware issue, not a firmware issue. But regardless, if you needed to roll back to EFI 1.6 to get your 15" machine to work, it appears that you are now frozen in time with that version of firmware.+
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Ok, strike all that, people... I misread the model break-down information.
(
http://www.everymac.com/systems/by_capability/mac-specs-by-machine-model-machine -id.html)
_*This release of EFI 1.8 is not targeted toward the machines affected by this issue.*_
The 13" and 15" MacBook Pros with an SD card slot (machines possibly affected by this issue) are designated
MacBookPro5,3,
MacBookPro5,4, and
MacBookPro5,5.
This firmware release only applies to those designated
MacBookPro5,1 and
MacBookPro5,2 (earlier 15" and 17" models).
I'm going to play a little game, though... as this post appears near the bottom of a page and we'll soon be moving on to a new page, I figure at least 10 people will come in here over the next few days and ask about EFI 1.8 anyway.
This will be entertaining.
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Message was edited by: fishbert