| 摘要 |
FIELD: information technology.SUBSTANCE: this invention relates to network communication technologies. Method includes: turning on power and reading a flag file stored in a flash; when said flag file exists and if detecting that there is an initial international mobile terminal equipment identity (IMEI) in said flag file, writing said initial IMEI into a one-time programmable data region as a backup IMEI, and deleting said flag file; when said flag file exists, and if initial IMEI is not detected in said flag file, determining that said mobile terminal is in a production phase; when said flag file does not exist, determining that said initial IMEI has been written into said one-time programmable data region of said mobile terminal as said backup IMEI; reading a first IMEI stored in said flash; comparing said first IMEI with said backup IMEI stored in said one-time programmable data region which is prohibited from being modified, to determine whether said initial IMEI is modified; if said first IMEI and said backup IMEI are inconsistent, disabling said mobile terminal.EFFECT: technical result is improved data transmission security.8 cl, 2 dwg |
