Origin Broadband DSL-N16 - Is there a way to revert to ASUS settings?

[amemorymisread]

I've acquired a DSL-N16 which, when reset to "default" settings, resets to Origin Broadband (a UK ISP) settings.

I'd like to know if there is a way to fully restore this router to the original ASUS factory configuration. Although it's working as I want it right now, I'd like to be sure there's no locking-down of any settings on the router.

Thanks!