OK... Though I did an ass job of wiring it when I had the same symptoms you did. The bios update when in no prob but got nothing when I restarted. After a million dip-switch settings and restarts, I held down then 'A' button (also play with the X or Y) and I got the Cobra menu.
Now if I can figure out how to rip with the bastard...
Thank you, drive through.