Why can I still receive messages when I change my mobile phone?

This is Apple's SMS function. Turn off the function of iMessage to synchronize information, and click Settings-Information -iMessage to turn it off.

The specific steps are as follows:

1. Open the "Settings" application on the home screen of the Apple phone.

2. Find the "Information" column in the settings list, and then click Enter.

3. Then click the switch on the right side of iMessage in the information list to close it.

4. After closing iMessage, it will not affect the normal information sending and receiving of our mobile phone.