2011 MBP 13" USB devices problems

Discussion in 'MacBook Pro' started by slck, Mar 22, 2011.

  1. slck macrumors newbie

    Joined:
    Mar 22, 2011
    #1
    Hello,

    I have returned my 2010 MBP 13" to replace it with the 2011 MBP 13" i5 one.
    The 2011 model came with Mac OS X 10.6.6 preinstalled.

    Somehow, it won't detect the USB devices, that were detected and worked perfectly with the 2010 model.

    I have a Huawei E1750 3G modem and Emu 0404 USB audio interface, both non functioning. The devices are shown in the system profiler, but they are simply not working.

    I've just updated OS X to 10.6.7, but still no success with my USB devices.

    Anybody with similar problems and/or solution?

    Thanks.
     
  2. Lloydehhh macrumors member

    Joined:
    Jan 29, 2011
    #2
    May be a I/O Board problem, as sometimes it can detect devices but cannot initiate any sort of data transfer between the board and the device if it is defective. I'd call Apple and make a genius bar appointment.
     
  3. slck thread starter macrumors newbie

    Joined:
    Mar 22, 2011
    #3
  4. josh2007 macrumors member

    Joined:
    Dec 22, 2008
    #4
    Maybe here's that excuse you needed to go out and get that new RME Fireface :D
     
  5. slck thread starter macrumors newbie

    Joined:
    Mar 22, 2011
  6. Kyzelios macrumors 6502

    Joined:
    Mar 6, 2011
    Location:
    Canada
    #6
    I wonder if it has anything to do with the fact that the 2011 MacBook Pros boot into the 64-bit kernel by default?

    Try starting your computer with the 32-bit kernel. To do this:

    1. Shut the computer off.
    2. Turn the computer back on.
    3. Hold down the 3 and 2 keys at the same time during start-up.
    4. Release the keys once Mac OS X begins to load.

    Then, try the device that you are having problems with. For more information on booting 32- and 64-bit kernels, please see http://support.apple.com/kb/ht3773.

    Hope that helps, have a great day. :)
     
  7. slck thread starter macrumors newbie

    Joined:
    Mar 22, 2011
    #7
    Kyzelios, you are a life-saver!
    Your suggestion and the solution to use the 32-bit kernel works like a charm.

    I wish you all the best, mate!


    :apple:
     
  8. Kyzelios macrumors 6502

    Joined:
    Mar 6, 2011
    Location:
    Canada
    #8
    Glad to hear that it worked out for you! :)
     
  9. EdRooney macrumors newbie

    Joined:
    May 4, 2011
    #9
    I have just posted about an issue with the Huawei modem I have... sounds like a similar problem which I will try your solution later.

    One dumb ass question I have (as a noob!) is what difference is there, in laymans terms between the 64 and 32-bit kernel modes and will I notice a difference?

    Ta


     

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