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모델 A1286. 2011년 2월 출시 / 2.0, 2.2, 또는 2.3 GHz 쿼드-코어 Intel Core i7 프로세서

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Progress bar on start up screen stuck and screen is frozen.

When turning on my computer, the progress bar on the white startup screen with the apple logo in the center, gets stuck 3/4 of the way and the screen freezes. I tried option-command-p-r and was not successful. Thanks for your help!

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

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I had a ѕіmіlаr issue, when turning on my Mасbооk Prо used to freeze.

During startup the progress bar would get stuck.

Fіnаllу I mаnаgеd tо rеѕоlvе thе рrоblеm.

Follow thіѕ ѕоlutіоn hеrе: http://bit.ly/MacBootStuck

Hоре thіѕ hеlрѕ

The link provided above for its solution does not work. Please kindly update.

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선택된 해법

That's about where the GPU driver kicks in. See if it will boot in Safe Mode (hold down the Option key On start up). What OS X are you running?

해당 답변은 도움이 되었습니까?

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We are not sure...

OK, what did it do in Safe Mode?

While it is in Safe Mode, you should also run Disk Utility and run "Repair Permissions" if it exists, and "Repair Disk".

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I ' ve done it. But it doesn't work

Mise à jour (13/01/2018)

Wath's the next step. Please. Thanks for helping

해당 답변은 도움이 되었습니까?

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