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Priority claimed from CA002276840Aexternal-prioritypatent/CA2276840A1/en
Application filed by Ericsson Telefon Ab L MfiledCriticalEricsson Telefon Ab L M
Publication of MY126762ApublicationCriticalpatent/MY126762A/en
A METHOD FOR TRACKING CHANGES TO A DATABASE STORED IN A SIM CARD (50) OF A MOBILE STATION (20,300),THE METHOD COMPRISING THE STEPS OF : PROVIDING , IN A MEMORY OF SAID MOBILE STATION AND ON SAID SIM CARD , A CHECKSUM STORAGE AREA FOR CHECKSUMS ASSOCIATED WITH SAID DATABASE ;MAKING A CHANGE TO SAID DATABASE : MAKING A CHANGE TO SAID DATABASE ; COMPARING (400) CHECKSUMS STORED IN SAID MEMORY AND ON SAID SIM CARD ; CALCULATING (420), AFTER SAID CHANGE , A MODIFIED CHECKSUM BASED ON SAID DATABASE ; AND STORING (430) SAID MODIFIED CHECKSUM IN SAID MEMORY AND ON SAID SIM CARD (50).FIG.4
MYPI200028771999-07-052000-06-26Method and apparatus for synchronizing a database in portable communication devices
MY126762A
(en)
Method for disabling mobile communication terminal equipped with memory for storing card information, mobile communication network and mobile communication terminal