How can I completely copy all software and data from one IPHONE 4 to another IPHONE 4S using ITUNE?

It will be more troublesome to use iTunes. It is recommended to use the mobile phone moving function under iTools tool software.

The method is as follows:

1. Install and open the iTools program on the computer;

2. Connect the two mobile phones to the computer using USB data;

3. Select the mobile phone relocation function;

4. Select one of the mobile phones as old, and the other mobile phone will be automatically determined. Be careful not to make a mistake.

Using this function of iTools is the most convenient and quickest.

Note that the "Find My Phone" function must be turned off on new phones.