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2011년 10월 24일 출시 / 2.2, 2.4, 또는 2.5 GHz 쿼드-코어 Intel Core i7 프로세서

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Why can't I start up after top case replacement?

I replaced my top case and it seemed to go smoothly. The only issue was that I may have initially reconnected the keyboard ribbon incorrectly by sliding it under the connector rather than into it.

Upon my first attempt to power up, I got to the login screen with the keyboard back light on but the keyboard was unresponsive so I could not log in (the trackpad did work, though).

I examined the keyboard ribbon connection and reconnected it in the way that seemed correct this time. When powering on this time, the process got stuck at the gray, spinning wheel screen. I've tried several times with the same results. Disconnecting the keyboard ribbon altogether and powering up that way still produces the same gray screen result.

Any ideas?

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

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선택된 답변

Try an SMC reset and a safe boot (shift boot). If neither one works try booting from your Hardware Test disk.

If this answer is acceptable please remember to return and mark it.

해당 답변은 도움이 되었습니까?

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dave21 님은 대단히 고마워 할 것입니다.
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