I think there is a secondary fail safe factory default reset but to do this you must unplug the main cable then have to hub powered for a long time 10 -20 mins for it to detect no cable and resets itself.
Not that I'm happy about it doing this should it work.
Are you still experiencing an issue with this? If you are unable to log into the Superhub and cannot factory reset via the pinhole, we will need to replace this for you.
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