Released October 24, 2011 / 2.2, 2.4, or 2.5 GHz Quad-core Intel Core i7 Processor

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keyboard and track not responsive after replacing the upper case

after replacing the upper case when i boot up my macbook pro the keyboard and trackpad don't work. if i plug in a had keyboard i get a message telling my internal keys and pad don't work. if nothing is plugged in i get no message. it just won't work. PLEASE HELP!

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why was the upper case replaced?

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I suspect there is more to this issue than just replacing the top case. Help us help you... give more detail.

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Thanks for the input. I wound up just tearing it all apart, and rebuilding it. Everything worked fine at that point. I guess it was just a loose clip or ribbon.

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Perhaps you have a faulty replacement upper case, OR you damaged the ribbon cable connector on the logic board when you removed the ribbon cable. Using a USB keyboard & mouse (unless they are of a very off market brand) should bring up a dialogue asking you to press shift keys so that it can be properly identified by the system software.

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aaron will be eternally grateful.
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