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正翻译步骤 1

步骤 1
Start with your laptop off with the case & hinge open
  • Start with your laptop off with the case & hinge open

  • Turn on the laptop. After this point be very careful not to touch the board especially with anything conductive.

  • Once your Mac has booted, carefully navigate the OS to play a long audio track that will keep playing for the remainder of this guide.

  • If you experience the issue this guide is intended for, no sound will play but a red light will turn on in the headphone port.

  • This silent audio will be used to find the source of the problem later on.

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