Well.. I've got a USB2.0External HDD box.
I was copying some content from it in ubuntu.I don't remember what i've done later but i suppose i restarted system without unmounting it.
From then on External HDD doesn't get detected and reports "USB Device not recognized"
I've got lots of important data in it.
I've tried few things.
http://support.microsoft.com/kb/871233
I'm done with all 3 methods in link.
None of them worked.
However,flash blue light is glowing by which i mean i can feel that device isn't damaged.
Thanks fr help in advance.Will be greately thankful to u......