i changed my simcard and Antitheft on Samsung Galaxy S Plus ( Android 2.3.6) detected it. After setting the new sim card as one and only trusted card, the telephone sends a sms each restart (telephone stolen? (in german language)).
In also deleted and reinstalled antitheft, but this doesnt help. i also sent a sms to the phone : code FOUND.
I am facing the same issue with my Samsung Galaxy Note. Everytime I reboot my phone, I get this message “My Note got stolen Sender: SIM Change Alert IMEI: #############”. Please advise as it keeps on spamming my phones registered on remote control.