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모델명 A1707. 2017년 6월 출시, 이 MacBook Pro는 Kaby Lake 프로세서 최대 2.8 GHz 쿼드코어 Intel Core i7 프로세서와 Turbo Boost 최대 3.8 GHz를 사용합니다.

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MacBook not turning on after screen flex cable repair failed

First of all sorry for my bad English (bc I'm korean)

Recently I bought a1707 macbook with screen flex cable problem and bios locked

I thought I could fix it but I failed (the flex cable is cutted) plus I tried to fix bios with ch341 but I guess this failed too (ic not responding error)

But after reassemble macbook it's not turning on

Did this repair while battery cable is unplugged so think is not shorted

USB meter says 19.6v 10~20w 0.5~1a and no keyboard or track pad respond or light

Plus I assume display will not work bc of cutted flex cable

Tried:smc reset/unplug charger and press power button for 10sec and plug/nvram reset

If have any kind of solution pls tell me

Thank you for reading long text :)

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Sometimes we have to throw in the towel as the costs and risks are too great. Sadly, I think that’s the case here.

A bad display and a deeper logic board problem doesn’t make economical sense to fix.

You clearly need a new display and as the logic board was locked (likely both user account and iCloud), it will require a new board. As the seller failed to clear the user account and break the iCloud ownership so it could be sold as a clean system a new clean logic board is needed to resolve these and that still doesn’t deal with the other damage it has.

I don’t like telling people this and I’m sorry the time and funds you might have lost thinking you could bring this system back alive. Can you get your money back from the seller?

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I forgot to say I checked that display is working at 10~15 degrees and I can login and use it with clamshell(external display) mode but seller forgot password of hd? Bios password? So the logic board was no icloud locked

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@srywhytnecqrdkc - There are people with the needed skills and tools to replace the backlight cable (it’s still not cheap). While you might be able to use the system getting the display at the correct angle over time you’ll loose that.

User account for the first created also makes an iCloud account by default. So while the person might have not known that, it does open a risk to the system. Sadly, trying to circumvent the account has not worked in this series and newer, Apple really worked hard in making a true data safe.

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Ok so there is no way except send to expert repair shop?

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@srywhytnecqrdkc - For the cable yes. Hacking of the chip and possible damage is still an issue.

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