Providing auxiliary services or functionality on an apparatus

An apparatus operates to provide default services or functionality. The apparatus authenticates replaceable resources by determining whether the replaceable resources originate from a desired source. The apparatus provides an auxiliary service or functionality in addition to the default services or functionality when each of the replaceable resources originates from the desired source, and precludes the auxiliary service or functionality when any of the replaceable resources do not originate from the desired source. 种装置操作以提供默认服务或功能性。该装置通过确定可替换资源是否源自期望的源来认证所述可替换资源。该装置在所述可替换资源中的每个都源自期望的源时除了默认服务或功能性之外还提供辅助服务或功能性，并且在所述可替换资源中的任何都不源自期望的源时阻止辅助服务或功能性。