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my mid year 2012 macbook pro has a blue vertica...

My macbook pro 15 mid year 2012 has a blue vertical line on the screen inside the left border and frequently displays the beach ball. These problems started just after a security update was installed for El Capatain. Both software and hardware diaganostic tests result in "no trouble found." What is wrong?

Hi,

Your MacBook Pro may have a faulty discrete GPU. So many of this model have the issue that Apple created a repair program for them, but it expired for your machine: https://www.apple.com/support/macbookpro-videoissues/.

最后更新：2017-09-13 06:07:00

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