MacBook wont turn on

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MacBook Pro 15インチ Retina Display Mid 2014

2.2 GHz (Turbo Boost up to 3.4 GHz) もしくは2.5 GHz (Turbo Boost up to 3.7 GHz) quad-core Intel Core i7 processor with 6MB shared L3 cache.

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kinkec @kas0

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投稿日: 2021年10月21日

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MacBook wont turn on

Well i got this model of Mac, brought to me from friend of mine, what she did is during the rendering video they smash them at keyboard,and mac wont to turn on again, they just shut down, as i have some expirience in fixing computers, i did ful teardown of mac, i suspect that keyboard is broken and power buton dont work anymore, so i tryd already with battery disconected powering charger, but they wont turn on,

Since i suspect that power button is dead i cant clear cmos, and now i looking a solution to try a find online whic one pins on motherboard i need to short to drain all power, cause still when all is disconnected they show me about 13 volts on some capacitors and etc

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@oldturkey03 i did not yet, so if u have some more advice,tell me what else i can check

kinkec さんによる2021年10月23日

@oldturkey03 - Whats your answer don't leave the rest of us in the dark!

Dan さんによる2021年10月23日

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Dan @danj

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投稿日: 2021年10月21日

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Have you tried shorting the power pads?

This is the same function as pressing the power button.

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i just did, nothing happend, there is still some power in resistors

kinkec さんによる2021年10月21日

@kas0 - With the battery disconnected, do it again this time hold the shorting for a good 10 secs. Then plug in your MagSafe did anything happen this time?

Dan さんによる2021年10月21日

@danj Well i did try but nothing happend on that pins, however i did mange to find other and drain all the electricity from mbo, but it wont help they still wont turn on, seems is totaly dead

kinkec さんによる2021年10月22日

@kas0 - Looks like its time to swap out the logic board, but given the systems age you also likely need a new battery as well.

While I would love to see you keep you system going, the costs may not be economical.

Dan さんによる2021年10月22日

Nope i wont swap it, i will gona teardown them and sold them to parts,

kinkec さんによる2021年10月22日

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@oldturkey03 i did not yet, so if u have some more advice,tell me what else i can check — kinkec
@oldturkey03 - Whats your answer don't leave the rest of us in the dark! — Dan
i just did, nothing happend, there is still some power in resistors — kinkec
@kas0 - With the battery disconnected, do it again this time hold the shorting for a good 10 secs. Then plug in your MagSafe did anything happen this time? — Dan
@danj Well i did try but nothing happend on that pins, however i did mange to find other and drain all the electricity from mbo, but it wont help they still wont turn on, seems is totaly dead — kinkec
@kas0 - Looks like its time to swap out the logic board, but given the systems age you also likely need a new battery as well.

While I would love to see you keep you system going, the costs may not be economical. — Dan
Nope i wont swap it, i will gona teardown them and sold them to parts, — kinkec

MacBook Pro 15インチ Retina Display Mid 2014

MacBook wont turn on

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