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소개

I had to make a separate guide for this Mac as this Mac has the new T2 chip and requires a different procedure then the other Mac Desktops.

  1. Choose Apple menu > Shut Down.
    • Choose Apple menu > Shut Down.

    • After your Mac shuts down, press and hold its power button for 10 seconds.

    • Release the power button, then wait a few seconds.

    • Press the power button again to turn on your Mac.

    • If that did not solve the issue, move on to Step 2

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  3. Choose Apple menu > Shut Down.
    • Choose Apple menu > Shut Down.

    • After your Mac shuts down, unplug the power cord.

    • Wait 15 seconds.

    • Plug the power cord back in.

    • Wait 5 seconds, then press the power button again to turn on your Mac.

  4. Shut down your Mac.
    • Shut down your Mac.

    • Then turn it on and immediately press and hold these four keys together: Option, Command, P, and R.

    • You can release the keys after about 20 seconds, during which your Mac might appear to restart.

    • You can release the keys after the Apple logo appears and disappears for the second time.

    • You must have a wired keyboard made by Apple in order for this to work.

    • You can buy one from Amazon here.

결론

If you have tried all of these resets and still have problems, head on over to our Answers Forum!

다른 2명이 해당 안내서를 완성하였습니다.

Aaron Cooke

회원 가입일: 2018년 08월 28일

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NIWOTech NIWOTech 회원

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one of my thunderbolt ports stopped working. I used the SMC and PRAM reset and they all worked afterwards. thanks!

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