Card Reader Terminal Commands

Discussion in 'OS X El Capitan (10.11)' started by BoxsterRS, Aug 1, 2015.

  1. BoxsterRS macrumors member

    Jul 13, 2010
    My card reader is not working. It is not recognized in the system profiler and when I enter an SD card, nothing happens. Does anyone in this community know any Terminal level commands where I cand try and turn on my card reader or at least diagnose any problems? I have only updated ram on my Macbook Pro 15' 2.4 ghz mid 2010 and removed the optical drive. I have seen threads where you can turn of the card reader to help minimize battery drainage and I believe I might of had done that a couple of years back. Any help is appreciated :) and thanks. I am running the latest El Capitan Beta 10.11 Beta (15A234d)
  2. h9826790 macrumors G4


    Apr 3, 2014
    Hong Kong
    I thinks it's a bug which hasn't fix yet. My USB card reader / external HDD via a hub never works in PB1, 2, and 3 (which works flawlessly in Yosemite).

    Also, there are some other reports about unstable USB devices. So, it seems that Apple still working on this issue.

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