USB V3 Problem

I have been using my USB Data Cable that came with my Black V3 for a few
months now without any problems.

Today I opened my MPT (latest version) after connecting my phone and it
cannot find the phone. It now asks me if I want to install it manually and
I do so but still it does not see the phone.

When the cable is connected the phone goes into charging mode so I guess
the cable is okay.

Also, to check the phone connection I opened my P2K and that also says
phone not connected.

I removed the battery and reinstalled/powered up again, same problem.

Any ideas?

Oh, I haven't done anything to the phone internally since it has worked
with the cable either.

Thanks in advance!