F500BT need serious help!! blackscreen bluetooth light flash.no wince

[rmaterajr]

someone please help me. when i turn on my f500bt i get black screen
and the bluetooth light just flashes.i used to get the pioneer screen
and then black screen but now just black and blutooth light. I was
modding this unit last year when this happened and never could figure
out how to fix it.i can get into test mode but i can not get into wince.
i believe wince has been removed and basically seems like the whole
unit is erased. anyone know what the hell i need to do to get this back
up and running. copy of someones original backup?

all ideas welcomed. desperately need this thing back to original or working modded nav

thanks in advance