Same problem here, no pioneer logo, black screen, powers off after 15-20 seconds. I cannot load testmode, however, I can get into the service menu but I cannot do the following:
1. perform a wince upgrade, it gets to reading 100% and just sits there
2. formatMBR, just keeps putting me back to the top of the menu list
I scoured through the forums and most people indicate bad nand memory. At this point it's either ship it back to pioneer or find someone who can service avic units, or unless someone else has a better suggestion.
-sai
