The dongle I got working is THIS one. I did not update the SW in the dongle (in fact don't really know how). I first installed the APK from HondaHack and then let it do whatever updated it wanted to. Have you tried the APK w/o updating it?
Did you have problems with sound? I get the navigation fine on the screen, but no audio to go along with it. I have Sirius playing at the same time and it works fine.