2016 Macbook Pro USB port failure

Discussion in 'MacBook Pro' started by lukekim95, Jan 24, 2017.

  1. lukekim95 macrumors newbie


    Jan 24, 2017
    I had a small MIDI keyboard plugged in and got a notification saying that it was drawing too much power. The ports were disabled and now I only have 2 of the 4 USB ports working. Tried the SMC reset, didn't work. Turned the computer off for a couple hours and it's still disabled. I find it hard to believe that this small MIDI keyboard would break these USB-C ports. Does anyone have a solution to this?
  2. jerryk macrumors 68040

    Nov 3, 2011
    SF Bay Area
    Maybe try a PRAM reset. It is different on the 2016 MacBook Pros, https://support.apple.com/en-us/HT204063

    Also, I assume you have disconnected the keyboard? And will connect it via a powered hub in the future.
  3. lukekim95 thread starter macrumors newbie


    Jan 24, 2017
    Still dead after the PRAM reset. I tried connecting other devices on the ports but they don't seem to work as well.
  4. Username Here macrumors member

    Aug 19, 2012
    Yep...just another 59.99 for a powered hub !!
  5. joleel7 macrumors member

    Aug 19, 2008
    Did you do a SMC reset? If after SMC still not fix the USB port take to Apple it should cover under warranty?

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