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2.3GHz, 2.6GHz, or 2.7GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache.

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After Battery replacement no video

I did a battery replacement (the one where you remove everything in the computer) and when I restarted no video. I took the back off again and disconnected / reconnected the video connector. Started it back up and the display worked for about 5 minutes and the computer abruptly shut down. Now no video again. Using screen sharing I can see the MacBooPro’s desktop.

Trying with a second monitor and there is no video. Looking at the screen on the shared desktop the under system information/Thunderbolt says that there is no device connected. Tried HDMI and no video.

Any suggestions???

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there is a small issue with mid 2012 retina, sounds like graphics card problem. but see if you disconnected any cables

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