Comment by mike_hearn

On Phat consoles? You could turn it into a modchip, if for some reason you wanted to. It'd be repeatable on every boot but might take a while.

The hard work comes after this though. There are lots of software level mitigations MS could use to keep the old devices usable with Xbox Live if they really wanted to. Just because you can boot anything you want doesn't mean you can't be detected remotely, it just makes it harder for MS to do so reliably. You'd be in a constant game of catch-up.