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6MB 공유 L3 캐시 2.2 GHz (Turbo Boost 최대 3.4 GHz), 2.5 GHz (Turbo Boost 최대 3.7GHz) 쿼드-코어 Intel Core i7 프로세서.

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Working machine no image no chime

2015 MacBook Pro that was bought last year in excellent condition. Took fall damage on the left corner and broke the display, but I could power it on, made a time machine backup, and the insides operated just fine. I did a total transplant into a refurbished display and used upper case assembly. Now, it won’t turn on, no chime, no image, but the fan spins. I get a green light on the charger, battery is connected. I double checked my cables, but I’m at a total loss.

This is not my first repair, I’ve successfully replaced other MacBook elements (display, keyboard, battery). I feel like I may have given this board static shock, or perhaps I was too rough on one of the elements. I made sure to touch my metal chair often. I’d hate to have to spend another $200 for a board repair after I made it this far. ?

Is there something I’m missing?

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

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What was the source of the part? Give us as much detail on what you got and how you transferred things.

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선택된 해법

I did some troubleshooting and discovered that my replacement screen had a dead backlight. As for the chime, a PRAM reset did the trick (Opt + CMD + P + R).

Replacements were from eBay. I have a new part coming in the mail now.

해당 답변은 도움이 되었습니까?

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Great work!

That makes sense.

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Austin McNair 가/이 대단히 고마워 할 것입니다.
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