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imac 27" late 2012 not start after cleaning from dust

Hello, sorry for my bad english, I have a imac 27" late 2012. I cleaned it from dust.

After that, he will not start. On the logic board led4 flashing. does not respond to the power button.

Resetting NVRAM / PRAM / SMC did not help.

Help me please.

iMac, OS X El Capitan (10.11.3), null

Posted on Feb 9, 2016 6:40 PM

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imac 27" late 2012 not start after cleaning from dust

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