MacBook Air suddenly dead, charger is also dead.

Question

MacBook Air 13インチ Early 2017

2017年Appleは13インチMacBook Airに新Broadwell Intl Core i5プロセッサを搭載して登場させました。バッテリー寿命の改善とパフォーマンスがわずかに向上しました。

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Mitra Animesh @mitranimesh

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投稿日: 2020年5月29日

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MacBook Air suddenly dead, charger is also dead.

I bought this Mac two years ago, so it is not covered under warranty.

Few days ago, in the morning when I opened the laptop I found that it is completely dead, plugged the charger.

Charger was also dead. No indicator was glowing, neither on the jack of the charger nor on the laptop. Kept for sometime to see whether there was any heating. But I found that it was not even heating.

But the previous day of its death, it worked completely fine, both the charger and the laptop.

As our country is in lockdown, I could not even move to the nearest service centre, as all are closed.

So, is it a problem of both the I/O board and logic board? Or something simple? If the boards are gone then it will cost huge I think. And now I can not spend that much.

Could anyone please help me estimating the cost of repair of the laptop?

Specification of the Mac:

MacBook Air, 2017.

Problems in short:

Laptop is completely dead.
Charger is completely dead.

Thanks.

Images are added.

Magsafe is attached when the electricity on. No light is glowing.

Health of the ports.

There is slight yellow coloration on the cable near the magsafe jack. I don't know whether it is identifiable in the attached picture or not.

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Dan @danj 評価: 479.3千 Self employed contract worker 35 329 971 · Answer 1 · 2020-05-30T07:34:42-07:00

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Dan @danj

評価: 479.3千

Self employed contract worker

35

329

971

投稿日: 2020年5月30日

オプション

Lets see if we can see something physically wrong here with the MagSafe charger and its connection to your system. Review this Apple T/N Apple Portables: Troubleshooting MagSafe adapters as an example here’s one thats really bad!

This was caused by using a knockoff charger so do make sure you have a REAL Apple charger not a fake.

Take a picture if it looks damaged and post it here for us to see iFixitでの質問に画像を追加する方法

At this point you'll either need to get a replacement MagSafe charger to test your system or you will need to pop off the bottom cover so you can then test the connection using a DVM to check the voltages of the MagSafe. Depending on what you find you either have a bad MagSafe charger (they do fail over time) or your logic board has a failure of a component.

Make sure you get a REAL Apple unit! There are just too many knockoffs now to trust anything at a non-Apple store or online (even if they state its OEM - which its not!)

Here’s the one you need directly from Apple: Apple 45W MagSafe 2 Power Adapter for MacBook Air

● Don't Replace Your MacBook Charger With a Cheap Knockoff

● OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth

● Lacking safety features, cheap MacBook chargers create big sparks

● FAKE Magsafe MacBook Chargers on eBay - Watch before buying a Mac Charger

To open your system follow this guide: MacBook Air 13インチ Early 2015の下部ケースの交換

ガイド

iFixitでの質問に画像を追加する方法

難易度：

とても簡単

—

2 - 5 minutes

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MacBook Air 13インチ Early 2015の下部ケースの交換

難易度：

中レベル

—

5 - 10 minutes

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Thanks for your reply. Please check. I have added the images. Apparently health of the ports are good. Only there is a slight yellow coloration at the charger cable's end.

The charger is original. It showed no problem since I bought the mac. Only sometimes the charger and magsafe got heated during charging. That's all.

Mitra Animesh さんによる2020年5月30日

Thank you again, Dan.

So the problem may come from the charger or the logic board.

I checked that if I need to buy a new magsafe original (from the link of apple store you gave) it will cost $79.

But if I need to change the logic board how much will it cost approximately?

Thanks for helping.

Mitra Animesh さんによる2020年5月30日

@mitranimesh - Around $500 ~ 600 USD Depending if its new or used.

Dan さんによる2020年5月31日

Thanks a lot.

Mitra Animesh さんによる2020年5月31日