Accessing Admin privileges on a Wyse Winterm 9235LE

Accessing Admin privileges on a Wyse Winterm 9235LE

I recently nabbed an older Winterm terminal from a computer shop for cheap, only to get it home and find out that the previous user didn't reset the administrator privileges to default. The default admin password won't work and everything on it is restricted by the administrator. I've been researching everywhere to see if there's a valid method of resetting the administrator settings to the default XPe configuration, but so far I've found nothing but NetXFer, which I couldn't find the default XPe ISO for. Is there any straightforward method of removing all restrictions?