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Late 2011 model, A1278 / 2.4 GHz i5 or 2.8 GHz i7 processor.

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Failed startup after putting to sleep.

I have a Late 2011 Unibody MacBook pro which is no longer functioning after having put to sleep. When turning on the fans come on for around a second with the Sleep indicator blinking once and that's it. It goes in this loop if I plug in the charger, I tried all basic troubleshooting:

  • SMC resets
  • NVRAM reset
  • With and without the battery during boot up

I suspect it's the logic board that's causing problems since I almost have replaced all other components recently. Apple outright refuses to repair the logic board, can anyone please help me understand the problem and the resources I would need to fix it?

Thanks much !

P.S - There was a similar thread on the forum but the only resolution was to bring in the logic board for repair. Sadly, I don't have that option here in my city in Germany.

Answer this question I have this problem too

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Are you able to even get it into recovery mode or even Target Disk Mode?

Reference: Mac startup key combinations

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No it wouldn't boot up at all, the GPU doesn't initialise.

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At this point I'm suspecting the logic board needs repairs or you'll need to replace it.

Given you unable to get your system to someone to repair it then you're stuck into just replacing the logic board. Here's the IFIXIT guide to replace it: MacBook Pro 13" Unibody Late 2011 Logic Board Replacement

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See if this will do anything: Unplug the mag-safe, unplug the battery, press and hold the power on button for ten seconds. Reconnect battery and mag-safe and see if you get a spontaneous reboot.

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Peter.binary will be eternally grateful.
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