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Ursprünglicher Beitrag von: freerol ,

Text:

it may happen[br]

have to respect all the steps.[br]

Make sure that you have the [br]

MacPro EFI Firmware Update 1.5   package from Apple OPEN  (just Open in the background but the .pkg file not clicked)[br]

then run the    Mac Pro 2009-2010 firmware Tool [br]

[br]

hrutkay’s video is perfect:   https://youtu.be/nwxxjmthRbs

Status:

open