How to back up my Apple iPhone 4S
You can use iTunes to back up your Apple iPhone 4S.
In this example, we use iTunes v11.1.0.126.
1. Connect the Apple iPhone 4S to the computer. On the computer, select your Apple iPhone 4S.
2. Click Back Up Now.
3. Wait while iTunes backs up the Apple iPhone 4S.
4. The back up has finished.
5. Click OK.