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slck

macrumors newbie
Original poster
Mar 22, 2011
16
0
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.
 
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.
 
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. :)
 
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:
 
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


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. :)
 
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