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error 5530

  1. fhturner

    MP 1,1-5,1 MP 2009 B08 >> 2010 Firmware...Error 5570 death match

    Hey Everyone— Sorry to start a new thread on this, but I wasn't sure which old one to tag onto, and most of them are, well, old. And I'm in a time crunch. I've got a 2009 Mac Pro 4,1 that I need to upgrade to 5,1 firmware, but it just isn't having it. I've upgraded probably a dozen machines in...