If you used V1.04 on a 5201 you bricked the unit and damaged it.
One very important thing to know, the firmware/hardware on 5201 is not the same as a 5200. When Pioneer came out with the 5201nex they have new firmware that is not the same as a 5200nex
If you look up a 5201 on Pioneer's site you'll notice there is no firmware update for that model yet.
If you took v1.04 and updated a 5200 you have damaged the unit.
I work in distribution for Pioneer and unfortunately have had a few people call us telling us they have done the same thing. If you do this the unit is not covered under Pioneer's warranty. I've been told by a few that have done this, the radio tuner disappears as a source and a few other small navigation errors.