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モデル番号A1502/2.6GHz（Turbo Boost使用時最大3.1GHz）もしくは2.8GHzTurbo Boost使用時最大3.3GHz）デュアルコアIntel Core i7、4MB共有L3キャッシュに変更可能

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MacBook Freeze, then Question Mark Folder and now it Won't Turn On?

So I was working on my perfectly fine macbook pro when suddenly it froze. Nothing was working and the cursor wasn’t moving. I pressed the power button for 10 seconds but it refused to restart. So I closed the lid and opened it again and I was greeted by a black screen which eventually turned into a question mark folder and then it shut itself down. I tried to power it up again using the power button and it just won’t power up. No matter what I try. Magsafe shows it was yellow for charging initially since it was a little less than full and now it’s green but it still won’t power on. I even checked to see if the fan was working when I pressed the power button but it isn’t.

Any help is appreciated. I had important work documents I was working on when it died. I had them saved though.

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If you need to salvage your data you’ll need to try setting up your Mac in Target Disk Mode and then connect your system to a second Mac treating your Mac as if it’s an external drive How to Boot a Mac in Target Disk Mode or get an external case to hold your drive OWC - Envoy

From the sound of it your drive is failing so you want to first safe what ou can before you try fixing it or you may need to replace it.

Update (02/13/2019)

OK, so lets move on,

From what you are describing your logic board has failed.

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This is my first mac ever so I'm not really aware of how to diagnose it but is it normal for the mac to not power on at all if the hard disk is failing or failed? Right now my biggest issue that it just won't power on

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Is there anything I can do on my end to diagnose the logic board?

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The problem is you need to have a glimmer of life. Clearly you don't. From your symptoms " I was working on my perfectly fine MacBook Pro when suddenly it froze" tells me the logic board has failed.

I was hoping you would have tried getting Target Disk Mode going to at least saliva your data but also offer a clue. Clearly thats not going to work with no reaction.

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Viren さん、ありがとうございました！
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