1. Connect mobile phone and computer
2. Select option
Transfer files from your computer to your mobile phone, go to 2a.
Transfer files from your mobile phone to your computer, go to 2b.
3. 2a - Transfer files from your computer to your mobile phone
Depending on your settings in iTunes, the transfer may start automatically.
Click your mobile phone in the menu to the left.
Follow the instructions on the screen to select the required settings.