Guest LA_Surfer Posted July 20, 2022 Posted July 20, 2022 I have an older mac pro desktop that I gave to my son. I think its a 2012 model that I did the OS hack upgrade to I think EL Capitan. My son was on it and hit the upgrade button not knowing it was a hack and now I just get a black screen of death on it. It also has an upgraded graphics card so you cant see the boot up screen to start in safe mode. Any help is appreciated. Source: MacRumors
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