Samsung S5660 Android 2.3.4 automatically sends SMS to another card after changing the card.

It's easy as long as it's not found and stolen. The person who contacts your mobile phone will change the card through the mobile phone 360 and turn off the "mobile phone anti-theft" function inside, so there will be no such problem. Under normal circumstances, if the original owner of the mobile phone has set "mobile phone anti-theft":

1. When you install the original SIM card, turn on the mobile network or GPS；; Then the original owner can use any mobile phone to send the "Wei Zhi # anti-theft password" to the original number to get the current location of the mobile phone. Send the "Bao Jing # anti-theft password" to the original number, and the mobile phone will give an alarm at the maximum sound (even if it is silent).

2. When you replace the original SIM card and install a new SIM card, the system will automatically send a short message notification to another security number set by the original owner in advance, so that you can obtain your mobile phone number and further remotely control the stolen mobile phone.

How to turn off "mobile phone anti-theft";

1. Insert the original SIM card and enter the mobile phone 360.

2. Click "Mobile phone anti-theft" and enter the anti-theft password.

3. Go in and click "Anti-theft protection on", and then click "Anti-theft off".