Patent ID: 8141136

Claim:
A smart card replacement method wherein said method includes the following steps: a) provide a new smart card to be activated with a new ICCID (Smart Card Identification), wherein the new smart card carries the new ICCID, and wherein the new ICCID is stored in a database of the operator system, but not activated; b) prepare an old smart card awaiting the replacement, said old smart card having an old ICCID, an old user identification number, and an old secret key, which have been registered and activated in the operator system, and have been mapped to the user account; c) establish a communication channel for data transmission between a user and an operator system; d) determine a user account in accordance with the old user identification number, wherein the user account corresponds to the user, and wherein the old user identification number is extracted from the old smart card by the operator system; e) transmit the new ICCID of the new smart card from the user to the operator system using the communication channel; and f) correlate the new ICCID of the new smart card with the user account, then register and activate the new smart card, and finally replace the old smart card, wherein step d) involves sending the old ICCID and the old user identification number of the old smart card of the user from a user end to the operator system, wherein step e) involves prompting the user to input and to receive the new ICCID of the new smart card transmitted by the user, wherein step f) includes: f1) the operator system receives the new ICCID of the new smart card input by the user, and dynamically assigns a new user identification number and a new secret key to the new ICCID; f2) in the operator system, a new parallel file is created with the new user identification number and the new secret key in the user account, to validate the new user identification number and the new secret key, and to invalidate the old user identification number and the old secret key; f3) sending the new user identification number and the new secret key to the new smart card; and f4) informing the user that the new smart card has been activated.