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Bericht: Antwoord op "MacBook Pro 15'' late 2011, not turning on,...

Laatste stem: 11 jul. 2017

Kiezers: oldturkey03 (Door beheerder besloten)

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Peter @petras99

Rep: 25

Vraag

MacBook Pro 15'' late 2011, not turning on, SIL blinks every 5 seconds

Gepost: 30 mei 2017

I posted this on apple discussions, but I thought I would try it here as well.

I have a MacBook Pro 15'' Late 2011, i7 processor. When ever I plug in the power cord (without pressing the power button), the sleep light turns on, turns off, waits 5 seconds, then repeats, the fans follow along with this cycle. It does the exact same regardless of whether RAM is installed, or not installed. NOTHING else turns on, other than the sleep light, and fans. It does this even if the screen is closed.

When the power cord is disconnected, you can turn it on pressing the power button, however, the sleep light does not turn on, only the fans. The fans turn on, then off, wait five seconds, turns on, turns off, then repeats.

What we have tried.

SMC reset
Removing RAM
Changing RAM
Using only one RAM slot
Trying to turn it on with no RAM
With hard drive
Without hard drive
With a different hard drives.
Attempted PRAM reset

Not exactly sure what to do now. Any help or suggestions are appreciated.

mayer @mayer

Rep: 685,3k

Antwoord

Gepost: 30 mei 2017

For right now leave it plugged in until the magsafe turns green and the battery is as fully charged as it can get. Then try the power on button. Next take the back off any carefully inspect the logic board for any signs of liquid damage such as green, blue or white corrosion residue. Look at the battery to see if you can detect any swelling.

This model has hard drive/IR cable failure frequently. Look at the cable as it comes over the last step and see if it shows any signs of damage.

This model was also under a class action law suit and subsequent repair p[rogram (which has now ended) for GPU and video failure.

https://www.apple.com/support/macbookpro...

Let us know your findings.

All else failing and if it shows no signs of liquid damage or impact damage, it may be eligible for an Apple Depot flat rate repair which runs $357 with tax an shipping (we can go into this later).

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MacBook Pro 15'' late 2011, not turning on, SIL blinks every 5 seconds

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