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2.2 GHz (Turbo Boost up to 3.4 GHz), 2.5 GHz (Turbo Boost up to 3.7 GHz), or 2.8 GHz (Turbo Boost up to 4.0 GHz) quad-core Intel Core i7 processor with 6 MB shared L3 cache.

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Display is not working (no apple logo light)

Short story:

I took my Macbook to Apple authorized service to replace my display for staingates program. They told me my Macbook had liquid spills but they can replace the display it at my own risk, then i accepted. Now they give me my laptop with new screen but the screen is black.

-It´s working with external monitor through HDMI.

-Apple logo doesn´t work

- I´ve already tried reboot methods holding keys but didn´t worked for me.

Please help me telling me which part could be the problem to find the right technical service in my city.

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Take a lit flashlight and shine it through the back Apple Logo. Are you able to see your desktop icons? If you do then your logic board needs service.

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Hi Dan. I´ve already tried with flashlight through the logo but there´s no image, all black.

da

@pazbaraybar - At this point you'll need to inspect the display connector on the logic board and the cable for corrosion as the video signal is not getting to the display. Take some pics and post them here for us to see Aggiungere immagini ad una domanda

da

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Betto Paz sarà eternamente grato.
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