Then, what you need is copying the music files from your old phone to your computers to do the iPhone manually manage music. After that, you can open the ITunes application and import the music files there. After you have been opened the ITunes application, you can connect your iPhone to the computer. ITunes will detect your iPhone device. After that, you can do the import music file to your iPhone device. It is very easy, right? Now, you can import the music files and enjoy your playlist on your iPhone.
Why do iPhone do this complicated method of the iPhone manually manage music for the device? iPhone is known as the exclusive smartphone that cannot be accessed freely. It does not mean to make you feel so hard but it just for your safety. Using this method to manage the date will prevent the viruses to attack the operation system of the iPhone. It can also make your data not easily get lost because if you want to delete your data, you also need to connect your iPhone to the ITunes. Not only can be used to manage the music file, ITunes also can be used to back up your iPhone data.