My MacBook Pro will not turn on - have tried resetting SMC.

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MacBook Pro 15" Unibody Late 2008 & Early 2009

Released October 2008 / 2.4, 2.53, 2.66, 2.8 or 2.93 GHz Core 2 Duo Processor

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mattclark110 @mattclark110

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发帖于: 2016年7月26日

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My MacBook Pro will not turn on - have tried resetting SMC.

Hi all,

I have a 2.4GHz MBP late 2008 model that will not turn on, no fan noise, so I am pretty sure that it is not a display issue.

I have it connected to my power cord which is showing that the battery is charged (green light). The only suggestion I can find online is resetting the SMC, which did not work.

Is there anyway that I can determine what piece of the hardware is causing the issue so that I can replace it myself? From a bit of research it sounds like it could be anything from the logic board to the charger connector but I have no way of working out which.

Thanks!!

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mayer @mayer

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Thanks for the vote of confidence @gigabit87898

Hi Matt,

Let's try a couple of quick fixes first. With the battery removed and mag-safe disconnected, press and hold the power on button for 15 seconds. Reattach the mag-safe and see if it does anything.

Next, try zapping the PRAM. Hold down the P R Command and option keys and hit the power, continue holding these keys down and wait for it to tone three times.

Let me know your results.

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Hi Mayer,

Thanks for getting in touch, I tried both of your suggestions without any luck.

In the end I found the Apple Technicians PDF and ran through that to conclude that it was my logic board that had broken. As a temporary solution I used the 'bake' method and it is now up and running.

Thanks for your help

Matt

由 mattclark110 完成的 2016年7月29日

Matt, this may work for a while, but your bet bet with be to do a reflow of the GPU with a hot air rework gun.

由 mayer 完成的 2016年7月29日

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Hi Mayer,

Thanks for getting in touch, I tried both of your suggestions without any luck.

In the end I found the Apple Technicians PDF and ran through that to conclude that it was my logic board that had broken. As a temporary solution I used the 'bake' method and it is now up and running.

Thanks for your help

Matt — mattclark110
Matt, this may work for a while, but your bet bet with be to do a reflow of the GPU with a hot air rework gun. — mayer

Gigabit87898 @gigabit87898 声誉积分: 16.1千 39 92 13 · Answer 1 · 2016-07-26T06:35:41-07:00

Gigabit87898 @gigabit87898

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Replace the DC-In board:

MacBook Pro 15" Unibody Late 2008 and Early 2009 DC-In Board Replacement

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Thanks for the response, I just ran a quick test:

When plugged in to the mains outlet but with the battery removed charge indicator LEDs on the side still light up when I press the button. I assume this means that the DC-In is still working?

由 mattclark110 完成的 2016年7月26日

Yes, that means the dc-in is working.... Has it ever gotten wet?

由 Gigabit87898 完成的 2016年7月26日

Okay thats great, making some progress!!

No it has managed to avoid any major spills.

由 mattclark110 完成的 2016年7月26日

What about the battery, is it a aftermarket one or has it ever had any problems? Also what is the last thing you did on your MacBook before it stopped working?

由 Gigabit87898 完成的 2016年7月26日

The battery is the original one supplied with the mac, which as you can imagine was on its last legs - practically holding no charge.

I never bought a new one as I was always using the laptop on my desk.

I have used it before without the battery in so assumed that it wouldn't be the cause of the problem now...?

I believe I was running Premiere Pro at the time - either that or safari + spotify.

由 mattclark110 完成的 2016年7月26日

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MacBook Pro 15" Unibody Late 2008 & Early 2009

My MacBook Pro will not turn on - have tried resetting SMC.

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