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Apple Computing Products:
macOS - Operating System
Trying to update EFI and SMC versions
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<blockquote data-quote="harryb2448" data-source="post: 1656654" data-attributes="member: 42497"><p>Tarek what operating system came with the computer? If OS X.6 or ealier you have to use the oriiginal DVD that came with the computer ~ that is the greay colored discs, disc two that contains AHT. For later systems you can use the Boot + D procedure.</p><p></p><p></p><p><a href="https://support.apple.com/en-au/HT201257" target="_blank">https://support.apple.com/en-au/HT201257</a></p></blockquote><p></p>
[QUOTE="harryb2448, post: 1656654, member: 42497"] Tarek what operating system came with the computer? If OS X.6 or ealier you have to use the oriiginal DVD that came with the computer ~ that is the greay colored discs, disc two that contains AHT. For later systems you can use the Boot + D procedure. [url]https://support.apple.com/en-au/HT201257[/url] [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Trying to update EFI and SMC versions
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