August 25th, 2011, 06:33 AM
Join Date: Oct 2009
Carrier: Not Provided
Thanked 2,909 Times in 1,698 Posts
could be a physical issue with the actual usb port.
what have you done yourself to troubleshoot?
are you rooted?
made any major installs/uninstalls?
have the latest htc update?
are you using task killers?
does it happen frequent enough you can take it into sprint and have them test?
lastly, have you tried a factory reset?