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Q: i cannot open my macbook pro after updating to 10.9

i tried many processes recorvery(Op+COM+R) or (COM+R) or (OPTION) , but still not work, and the " Applications/.../.../ operation not permitted

I tried to make a usb installer but i can instal it no matter the revcovery or opening the computer with C.

Besides, i cannot open the safe mode.

please give me some suggestion about solving this problem.

Thanks a lot!

Posted on Jul 6, 2014 9:38 PM

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Q: i cannot open my macbook pro after updating to 10.9

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