An embedded universal integrated circuit card (eUICC) is a traditional universal integrated circuit card (UICC) embedded in a terminal, but is not removable, and therefore cannot be arbitrarily replaced like a traditional UICC card. However, a profile in the eUICC card can be changed through remote management. The profile is a combination of a file structure, an application, data, and the like, and after the profile is configured in the eUICC, the eUICC may access a mobile network by using the profile. Specifically, a profile manager (PM) outside the eUICC card may manage all profile management functions of each profile in the eUICC card by using a corresponding management function in the eUICC card, such as a profile management domain (PMD). The profile management functions may include: transmission, activation, deactivation, deletion, and the like. However, if the PM is used to manage the profile in the eUICC card, the PM needs to be authorized.
In some approaches, authorization information is stored in an authorization server, and each time after a communications device is started, the communications device needs to report a device serial number to the authorization server, to obtain the authorization information from the authorization server. However, efficiency of the authorization manner is low.