Does a MacPro 6,1 qualify as #VintageApple yet? 😜
All jokes aside..serious question:
I’m trying to upgrade a MacPro 6,1 trashcan with a new 4TB SSD. I updated the machine to 10.14 while the original Apple SSD was installed so it updated the firmware to recognize non-Apple SSDs. After installing the new SSD, the OS I want to use (Yosemite 10.10) no longer recognizes the SSD. Later OSes will.
Is this a firmware issue, but in reverse?