Why isn't my Galaxy S3 USB device recognized?

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AC Question

Galaxy S3 USB Device Not Recognised

Whenever I try connect my Galaxy S3 to a computer it says USB Device Not Recognised. It does charge, but I don't see any USB icon in the pull-down menu on my phone.

I have already tried connecting to other computers and also tried different cables, and it's always the same problem, so I'm pretty certain the issue lies with my phone.