bleoni39
Level 1 (6 points)
Notebooks

Q: Macbook keeps ejecting external hard drives

My Macbook Retina 12' keeps ejecting external hard drives and external SSD or USB sticks without warning and without me interfering. A warning sign will pop up and say that I always should eject external drives safely before detaching them. But I didn't even touch them. This happens a lot, especially when a drive is connected with a USB-C to USB adapter (Apple adapter). Sometimes it happens every 5-10 minutes.

MacBook, iOS 9.3.1

Posted on Apr 17, 2016 1:02 AM

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bleoni39

Q: Macbook keeps ejecting external hard drives

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  • by a brody,

    a brody a brody Apr 18, 2016 5:10 AM in response to bleoni39
    Level 9 (66,781 points)
    Classic Mac OS
    Apr 18, 2016 5:10 AM in response to bleoni39

    If it is only when this adapter is connected, then the adapter is likely faulty or not getting enough power for the USB devices.  Many USB devices are not energy saver aware, and need power from an external source such as the wall or a wall powered hub.  And after the lid is closed or the Mac goes into Energy Saver, the ports can remain in low power mode until a reboot.

     

    By the way no Mac runs iOS.  To discover your Mac OS X, go to Apple menu About This Mac.  Update your signature post profile accordingly so more concise help can be given.  iOS is only for iPhone, iPad, and iPod Touch