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This happened a few times to one of the Macbook Pros at my office (Same model). It started shutting down before the Yosemite update though so I'm not sure if it's the same problem. What got things working again, albeit temporarily, was reseating the RAM and then plugging the power adapter in. The machine then started up on its own and properly booted into ...


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Only FireWire and Thunderbolt support Target Disk Mode. You have to remove the internal disk and put it in an external case with UltraATA interface. Alternatively you may create a bootable thumb drive (MacOS 9.1 or better), boot from it and create an image of your HDD with Disk Copy and save it to a network share. Building a bootable thumb drive and ...


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I/O problems are a good indicator that your drive is past its best. Replace the drive or do the following... Back up everything of value via Target Disk Mode (if possible) then boot your MacBook from a USB or DVD installer. Run Disk Utility, selecting the secure erase/zero fill option and wipe your drive. This will issue an ATA secure erase command that ...


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I found this article: https://foliovision.com/2014/01/os-x-scheduling-tools Lingon looked very slick.


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Disconnect everything from the Mac and then power it off. Perform recovery according to these steps. http://support.apple.com/en-us/HT4718 If that fails, then you may need support from Apple to determine the version of OS X that shipped with the Mac so you can restore that and start over/restore from a backup once the hardware is known to work. Or it ...


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On the Yosemite login screen, you should see the current Input Method (keyboard) icon in the upper right corner. If you click on the current input method, a drop-down menu will let you choose which alternate keyboard you can use. That should let you enter it in. If your keyboard isn't listed, the dropdown menu also has an exhaustive list of other input ...



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