USB port gone after ejecting external HDD

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I have strange issue with USB ports. After ejecting USB drive (external HDD, powered by USB bus), which worked perfectly, USB port does not recognize anything, nor providing power. Turning MBP off and then booting back solves this issue.
Any ideas?

After some time I connected external HDD to "dead" port again. And got power. But still no devices recognized on this port. For example: iPad does not charge, not recognized.

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OK, Stanley, that's what I also thought (even the Subject of my other post suggests that).
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Welcome to the Apple Discussions!
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USB ports stop recognizing external or flash drives during back up, dv7 2185 laptop

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The entire document and tutorial can be found here.
I am a volunteer. I am not an HP employee.
To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved. You can render both Solution and KUDO.
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Message was edited by: James Acomb1
Message was edited by: James Acomb1

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http://www.bleepingcomputer.com/forums/topic375369.html/page__st__15

USB port gone after ejecting external HDD

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