rMBP Constant USB connect/disconnect - Help?

Discussion in 'MacBook Pro' started by ohms12, Apr 19, 2018.

  1. ohms12 macrumors 6502


    Jun 21, 2012
    Looking for some help!

    I've got a mid 2015 rMBP (2.5Ghz i7), running OSX 10.13.4. I've been having this strange issue where whatever device I plug into the laptop's USB port, it repeatedly connects and disconnects (every half second or so). I've tried with an iPad Air 2, iPhone X (both using different, official, Apple cables). I've yet to try more devices - but I need both (need to do an update & reset one device) to work!

    • I've reset the Privacy location settings
    • I've tried both USB ports
    • I've reset the PRAM & SMC
    • I've ran in safe boot
    • I've setup a new Admin account and ran them from there
    • I've run Disk Utility/First Aid (doing it via the cmd+R method at startup)
    • I'm currently charging both devices to 100% to see if it helps..
    • I'm running the most current software on all devices
    • I've also ran a hardware test (press D on startup)
    I think that covers everything I've tried, for now. No dice, though. Does anyone else have any ideas?! :)
  2. Fishrrman macrumors P6


    Feb 20, 2009
    WHEN did this behavior begin?

    Right after you upgraded to 10.13.4?
    Or... earlier than that?
  3. ohms12 thread starter macrumors 6502


    Jun 21, 2012
    Honestly, not entirely sure. I haven't plugged anything into the mac in maybe a month or so! I guess it's possible..
  4. jerryk macrumors 601

    Nov 3, 2011
    SF Bay Area
    Is it both USB ports? I believe there are separate controllers for the left and right side ports.

Share This Page