How can I revive a dead laptop for a friend

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MacBook Pro 13インチ Unibody Mid 2012

2012年半ばモデル、A1278/2.5 GHz i5または2.9 GHz i7プロセッサー。

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John Serrano @stealth576

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投稿日: 2019年11月25日

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How can I revive a dead laptop for a friend

Over the weekend a friend of mine and his son decided to upgrade Mom’s laptop. They installed Crucial MX 500 1TB SSD and 16 GB of Crucial memory. After completing the upgrade the laptop failed to restart. They tried everything at the Apple support site, and nothing . They undid the upgrade, reinstalled the old parts and the laptop was still DOA. Mind you the laptop was working fine before the fiasco took place.

Now it’s in my hands. I really don’t want to let them down as they can’t afford a new laptop. Any help would be greatly appreciated.

P.S. The light on the charger is barely lit when plugged in and charging.

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arbaman @arbaman

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投稿日: 2019年11月25日

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To answer your main question, that depends on your skills when it comes to logic boards repair, a faint green magsafe light points to a board issue that may easily involve shorted components and/or a faulty first stage power rails or charging circuit.

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@stealth576 Did you disconnect the battery before the upgrade???

If not then i think you shorted a compontent

Ben Capehart さんによる2021年12月1日

@arbaman yeah, turns out he and his dad decided to DIY a hard drive and memory upgrade. Had never repaired a laptop or anything electronic before. End result was a fried mainboard among other things. Was able to repair it with spare parts I had lying around.

They didn't learn their lesson though, had to repair two more macbooks they tried to upgrade several week later.

John Serrano さんによる2021年12月3日

@beanman56 You didn't read the question correctly. I received the laptop after the Macbook owners failed upgrade attempt. It's common sense to disconnect the battery prior to working on any laptop.

I was able to repair the laptop and complete the upgrades for him.

John Serrano さんによる2021年12月3日

@stealth576 So what do you need help with now??? :|

(By the way i know what i am talking about i am on the same kind of MacBook pro)

Ben Capehart さんによる2021年12月3日

@stealth576 - If you're set don't forget to score the answer and accept it, I'm sure @arbaman would appreciate it!

Dan さんによる2021年12月4日

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@stealth576 Did you disconnect the battery before the upgrade???

If not then i think you shorted a compontent — Ben Capehart
@arbaman yeah, turns out he and his dad decided to DIY a hard drive and memory upgrade. Had never repaired a laptop or anything electronic before. End result was a fried mainboard among other things. Was able to repair it with spare parts I had lying around.

They didn't learn their lesson though, had to repair two more macbooks they tried to upgrade several week later. — John Serrano
@beanman56 You didn't read the question correctly. I received the laptop after the Macbook owners failed upgrade attempt. It's common sense to disconnect the battery prior to working on any laptop.

I was able to repair the laptop and complete the upgrades for him. — John Serrano
@stealth576 So what do you need help with now??? :|

(By the way i know what i am talking about i am on the same kind of MacBook pro) — Ben Capehart
@stealth576 - If you're set don't forget to score the answer and accept it, I'm sure @arbaman would appreciate it! — Dan

MacBook Pro 13インチ Unibody Mid 2012

How can I revive a dead laptop for a friend

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