Mobile Security - does not recognize trusted sim card

[cerien]

Hello

I am struggling with the anti-theft function. I have added a SIM as a trusted SIM - the IMSI number looks fine (MCC+MNC + 10 digits).

However, each time the phone powers on, it is locked, and an SMS is sent to the trusted friend, stating the phone is stolen, SIM Card IMSI : MCC + MNC + 0 (ie 6 digits).

The phone is a Galaxy S5830, Android Froyyo.

Is this a bug ?

Regards,

J.