METHOD AND SYSTEM FOR CONTROLLING UICC AND EUICC

An electronic device (100) is provided. The electronic device (100) comprises a socket where a universal integrated circuit card, UICC (120) is inserted, the UICC including a first profile installed thereon and pre-activated by a mobile network operator (MNO) server, an embedded UICC, eUICC (130) fixed in the electronic device (100), and a processor (110) electrically connected with the UICC (120) and the eUICC (130). The processor (110) is configured to identify that a current location of the electronic device (100) corresponds to a country code of a first international mobile station identity (IMSI) included in the first profile, transmit, in response to the identifying, a request for a second profile to be installed in the eUICC (130) to the MNO server (300) based on the first profile to allow the MNO server (300) to replace the first profile with the second profile, the request including information of the first profile, perform authentication with a second server (210) associated with the MNO server (300) based on information received from a third server that receives a notification regarding the request from the second server, receive the second profile from the second server (300), and install the received second profile in the eUICC (130). The first profile includes a first mobile station subscriber directory number (MSISDN), and the second profile includes a second IMSI different from the first ISMI and a second MSISDN identical to the first MSISDN. Figure 1