Most update.xbe's have the Dashboard titleID (oxfffe000), and are considered part of the Dashboard suite of programs.
However some update.xbe's have been found that
don't have this titleID - and one of them is used for UDE2

So what we're looking for is an old PAL update.xbe - old so it still has the font flaw - but one that doesn't have the Dashboard's titleID - so K:5713+ won't prevent it running.