I appreciate the info but this did not work. I did do the update when it came out this past summer. I also thought maybe a file got corrupted or something and tried to re update it with the SD card that had the update installed on it. I was successful updating this past summer. When thgis did not work I re down loaded it again on a new Sd card and up it into the unit with the ignition off and turned the ignition on. Something that sounds like a hard drive spinning starts up, the slpash screen comes on for about 10 seconds then goes off, then flashes about every three or four seconds. I think it is trying to boot up with the sd card in it. This i think is a whole different ball game. With the sd card out the unit lights up. the splash screen comes on. then about 10 seconds later everything goes dead. I can hear a motor running or something inside the unit so I know it is not totally dead. I checked all fuses in the vehicle and the 10 amp in the back of the unit. All good. I am calling Pioneer in the morning. I still have 6 weeks on the factory warranty. I hope they give a quick turn around and maybe a firm ware and map update.
Any other ideas though would be appreciated and tried.