Patent ID: 8345640

Claim:
A method to use a mobile terminal with a different operator from the one the mobile terminal was previously used with, on a telecommunication network comprising the said mobile terminal and a personal token, said method comprising: a step of personal token actuation in the mobile terminal; and a step of presentation of a dummy International Mobile Subscriber Identity (“IMSI”) code from the said personal token to the said mobile terminal, and wherein when there is detection by the mobile terminal of the presentation of the dummy IMSI code with a first code selected from a group consisting of a first Mobile Country Code (“MCC”) and a first Mobile Network Code (“MNC”) code, the step of presentation further comprises: a step of indicating that the personal token is invalid in response to the step of presenting the dummy IMSI and the first code; a step of selecting a second code from a group consisting of a second MCC and a second MNC; a step of presenting the dummy IMSI and the second code to the mobile terminal; a step of displaying a network search screen on a screen of the mobile terminal in response to the presentation of the dummy IMSI and the second code; a step of replacing the dummy IMSI code with an IMSI code of a different operator after the step of displaying, and a step of requesting the mobile terminal to re-read the IMSI code and retry network registration procedure after the step of replacing.