Step 1: Log in to Apple official website, download itunes, install it and open it.

Step 2: Baidu search ifunbox software on the computer to download, install and open it.

Step 3: Connect the device to the computer with a data cable, and wait for ifunbox software to identify the device:

Step 4: Click "File System" on the left interface, open "itunes-control" and select "Music":

Step 5: Right-click the music folder, select Copy to Computer, then select the appropriate storage location, and click Save:

Step 6: Due to its special folder format, the copied file needs to be slightly modified. Open the folder where the music backup is located, and enter MP3 to search:

Step 7: The searched file is a song file and copied to the computer.

Step 8: Open itunes.

Step 9: Click "Music" in the upper left corner of the interface, select the song file to be synchronized in the menu in the upper left corner, and import the data into itunes. As shown in the figure: