2.26 or 2.4 GHz / White plastic unibody enclosure

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two USB 2.0 ports, and one of them just quit working

I also have this problem on my (Mid 2009 13" 160GB Macbook Pro) 2.26 GHz, Intel Core 2 Duo, MacBookPro5,5 .

There are two USB 2.0 ports, and about a year ago one of them just quit working altogether. It gave me a 'NOTICE!' of:

''Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled.

To prevent damaging your computer, the USB device drawing too much power has been disabled. Other devices may have also been disabled. When you disconnect the device drawing too much power, your other USB devices will be enabled again.''

...and I haven't been able to get annnnyyytthhhiiing to be recognizable in that USB port since.

I've tried a number of fix attempts with no luck at all :( Is there any hope for that port?

I need to transfer data from one dying external 500GB HDD to a new external 1TB HDD ...but with the single functioning USB port, it's proving to be pretty tricky. Today, I even bought a 4-Port USB 3.0 Hub ( a powered version to avoid the 'drawing too much power' issue), and that didn't even work in the one functioning USB port. ...........ughhhhh.

Any advice is GREATLY appreciated. Thank you in advance.

-Frustrated graphic designer

Answered! View the answer I have this problem too

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1 Answer

Chosen Solution

I would start by resetting the SMC Apple TN to rule out any latched setting in SMC.

If that doesn't clear the problem you may have a fuse link that is blown on the power lines feeding the USB port. You'll need to take a good picture of the logic board around the port so we can locate it.

If the connector its' self is damaged you really need to replace the entire logic board.

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Kevin will be eternally grateful.
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