Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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usb power MacBook Pro

On my macbook, in one of two usb port there is no power and the other the power is low in fact the external hd does not work...

Can we help me plese? thanks

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Check out this USB Flash Drive only recognized on one specific port? for a little clarification on your issue. I had the same puzzling dilemma.

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