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I have a late 2008 MBP that will no longer turn on. The orange/green light on the magsafe connector lights up but nothing happens when I press the power button. I suspect its the logic board since OSX was often freezing prior to this and I had to hold down the power button to do a hard shutdown. I know there is another little board that the magsafe connector connects to, but since the magsafe connector is lighting up I dont suspect that. Just trying to pick some brains on here. Thank you in advance.

Mike: you may try and open the laptop up ( following the infix it guides) and disconnect the battery and power cord. Then press the power button for ten seconds, then put it back together and see what happens. Sometimes the controller locks up after a bad shutdown and those steps should reset it. If that doesn’t do it, then let us know and we’ll try to offer another suggestion or two. Good luck

I have the same Macbook that has been ‘dead’ for the last three months. I tried everything, SMC reset, power button held down while plugging the charger in, battery off, battery on. Nothing worked until today when I tried something different: heat. Lots of it. I ran a hairdryer over the keyboard, top-case and bottom panel (battery cover removed) while occasionally hitting the power button. After heating up the bottom panel, I flipped it back over and tried the power again: success. Hope this helps someone. I think the trick for this machine now is to never shut it all the way down or to hibernate.

Try an SMC reset. Connect the power adapter to the Mac. On the MacBook Pro’s keyboard, hold down the Shift+Control+Option keys and the Power button at the same time. Release all keys and the power button at the same time – the little light on the MagSafe adapter may change colors briefly to indicate the SMC has reset.

Hello it may be relative but I was starting to think about taking the macbook late 2008 aluminium to the service center in the city I live. I did several times all the steps shown in this link, but nothing worked. https://support.apple.com/en-om/HT201295 What actually worked for me is the experimentarion of making the steps given in the link and also letting battery out, pluggin the magsafe to the laptop without a battery installed. It is on right now, guess gonna see how it goes.

Louis Rossmann adresses the problem in this video and shows a solution, which is resoldering a capacitor.

I did the shift + control + opt while I press down the power for 10sec it won’t come up only shows the green battery Light /indicator at the side what did this actually mean Gigak_Teedice Enterprise Teedice02@gmail.com