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Released June 2012 / Core i7 processor with Turbo Boost / Up to 1 GB GDDR5 Video RAM

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Why is my computer not charging or powering up? MBP 15" 9,1 MD103LL/A

My computer no longer powers up or charges. I changed out the Battery, DC-In board, and am using a functioning AC adapter (it works with my other MBP9,1). The battery level indicator does not seem to be working either. I doublechecked all connections inside and out before and after changing parts.

Are there any other things iʻm missing besides the mother board itself?

thanks, everyone!!!

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Give this a shot. Disconnect the battery from the logic board & remove the power adapter. Press and hold the power on button for 15 seconds, the reconnect the battery and then the MagSafe. You should get a spontaneous reboot.

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