I had a total brainfart starting to do the jailbreak and put it through the demo mode stuff but without the payload, so it's just cycling display images and if it responds at all to the screen being touched it just shows the message about not being connected to a network or missing demo data. Touching the message to open configuration does nothing.
Is there any way to get it back to a functional state without prying it open and soldering a serial connector into it? I'm up for a lot of goofy shit but I'm dogshit at soldering.