Hey, I have the same type of box, and problem. Like I mentioned above, boot with NO controllers plugged in, then once it gets to the point where you can select an option, plug the controller into a random port, it doesnt worK? Then try them all, if still not a go, then unplug, reboot an retry.
It's not a science, more like hit&miss, but if it got me there, I'm sure it can do it for you.
Patience grasshopper ;-)