The problem is: What about ME region after replace CPU. I was replaced CPU, board are start, but I can't open OS (ME corrupt, and just think what must to do to reset / replace the ME.) ? Just read 32mbit rom ic and have no found any signs of ME
Update: After replace cpu (with integrated pch) we must put Mac in dfu mode and restore the system. The ME is stored in flash memory or t2 ic. All data will be lost off course. In 15" and 16" there is no problem with ME after replace cpu.
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