Our family hasn't used our Xbox 360 in a long time. The girls started it up today and it's prompting for whether we want to accept the system update (Yes or No). The only problem is that both wireless controllers died from dead batteries and aren't sync'd with the console. I tried replacing the batteries but neither controller with now sync with the console, at least while the unit is at this update screen. We're stuck and I don't know how to proceed past this menu outside of maybe getting a wired controller and trying again. Any ideas? I've searched extensively for a solution and haven't found much.