I bought two on Ebay in case one wouldn't work I wasn't aware there were two models. One was regular, one was WiMax. The regular one looks worn, but works as it should.

The other,

Model N810
WiMax Edition
Type RX-48

This is the one with the bad micro usb port. I think it is a lost cause, as I can't flash without the pc connection. I will probably attempt to fix or replace the port itself, as it is pretty useless as is. I have done minor repairs, like replacing capacitors in TV's, so will see if I'm up to it. Only paid $23, so no great loss - although it looks like new with a perfect screen. Luck of the draw.

It will sometimes (seldom) connect for a few seconds if you wiggle and hold it, but it immediately disconnects. I know the cable is good as it works fine on another one.