ACTIVATING A MOBILE TERMINAL UNLOCKING

摘要

The invention concerns a method for activating unlocking of a mobile terminal (TM) to be connected to a radio communication network (RR) and co-operating with a smart card (CP), wherein an unlocking activating indicator stored in a first state in the card is periodically read by an application of the terminal to maintain the terminal locked if the indicator is in the first state. A server (SO) transmits an updating message including a state-changing command to the card via the terminal after a predetermined usage time interval so that an application in the card shifts the unlocking activating indicator into a second state. If the unlocking activating indicator is read in the second state by the terminal application, the latter commands the unlocking of the mobile terminal. The interaction between the terminal and the card controls the operation of the terminal as well as providing sufficient revenue to the operator who has sold the terminal.