Well, that did not work at all. None of the solder points were loose, but I redid them anyway. No change. I think the problem is with the port itself -- like maybe pins inside are bent, or something. I can't figure out how to get the little black casing off of the port to take a closer look, though. There are a couple tabs on the side that I bent back to try to lift it out, but that didn't do the trick.