Why is my MacBook Air 2014 not powering up?

Question

MacBook Air 13" Early 2014

Apple의 MacBook Air 13" 2014년 4월 업데이트에는 참신한 듀얼-코어 i5 및 i7 프로세서와 더불어 배터리 성능을 약간 향상시켰습니다.

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Donald @advocate050

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게시일: 2021년 7월 24일

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Why is my MacBook Air 2014 not powering up?

I decided to restore my MacBook Air 2014 few hours ago, after wiping the HDD through the Disk Utility, I tried to re-install the OS X and it started the update for a while and all of a sudden the screen just went black and it didn’t come back up again. I tried to press down the power button for it to power on but nothing seems to be working as the system refuses to power up at all since. Please has anyone ever encountered this issue before?

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Mohamad Amin @nox4ever 평판: 11 3 1 · Answer 1 · 2021-07-24T14:03:53-07:00

Mohamad Amin @nox4ever

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Hi press the pwr button and hold down the Option button

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Tried that just now and it still didn’t power up

Donald 의 2021년 7월 24일

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Dan @danj 평판: 479k Self employed contract worker 35 329 970 · Answer 2 · 2021-07-24T16:17:37-07:00

Dan @danj

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Lets give this a try, follow this guide to disconnect the battery stopping at Step 3 MacBook Air 13" Early 2014 배터리 교체

Now with nothing plugged in, press the power button for a good 15 sec to fully discharge the system. Now plug in the MagSafe charger (don’t connect the battery) your system should spontaneously restart, did it? The MagSafe charger LED should be Amber if not you’ll need to clean and inspect the MagSafe charger contacts.

Make sue your cable doesn’t look like these!