Reconfigurable radio systems and networks will offer the next major leap forward in mobile and wireless communications, particularly in the light of the many existing world-wide air interface standards and the expected wide range of future broadband mobile and personal communication systems. Clearly, reconfigurable terminals will offer greatly enhanced flexibility to the end user, supporting all types of radio systems (e.g. paging to cellular, numerous wireless LAN deployments, terrestrial to satellite, personal communications to broadcasting) as well as enabling the integration of many systems within the same platform. The TRUST (Transparently Reconfigurable UbiquitouS Terminal) project specifically addresses the development of reconfigurable terminal platforms from both the `user friendly prospective' as well as the underlying enabling technologies. This paper proposes a technique that can be used to detect and eliminate terminals, which develop malfunctions after reconfiguration to a new radio access technology (RAT).