2017.09.02 OK, now I know how to transfer music from Windows PC to iPhone 6s. See this: https://www.youtube.com/watch?v=3eKo0AWmV7E 1. you need first install iTunes on PC (Windows PC) — sometimes you need to try installing 5 or 6 times, then it will start installation correctly. 2. start up iTunes 3. connect iPhone 6s USB cable to PC. Now in iTunes, you will see this red part is doing the syncing with iphones 6s (steps 1 to 4), after finished, you see the apple icon. NOTE: Open iTunes. For the first connection, a window will pop out. Click “Continue” to allow… Read more »
Then use this iTunes to copy .mp3 files to iphone 6s.
iTunes (/ˈaɪtjuːnz/ or /ˈaɪtuːnz/)[4] is a media player, media library, online radio broadcaster, and mobile device management application developed by Apple Inc. It is used to play, download, and organize digital downloads of music and video (as well as other types of media available on the iTunes Store) on personal computers running the macOS and Microsoft Windows operating systems. The iTunes Store is also available on the iPhone, iPad, and iPod Touch.
I find a video on Youtube: https://youtu.be/xM9qMHE-zNs
To transfer music files from iPhone to PC or transfer from PC to iPhone, you can easy to achieve with iOS Assistant tool: https://www.mobikin.com/idevice/transfer-music-from-iphone-to-computer-free.html
2017.09.02 OK, now I know how to transfer music from Windows PC to iPhone 6s. See this: https://www.youtube.com/watch?v=3eKo0AWmV7E 1. you need first install iTunes on PC (Windows PC) — sometimes you need to try installing 5 or 6 times, then it will start installation correctly. 2. start up iTunes 3. connect iPhone 6s USB cable to PC. Now in iTunes, you will see this red part is doing the syncing with iphones 6s (steps 1 to 4), after finished, you see the apple icon. NOTE: Open iTunes. For the first connection, a window will pop out. Click “Continue” to allow… Read more »
Transfer Music from PC to iPhone 6
https://airmore.com/music-from-pc-to-iphone-6.html
iTunes is an application on PC (Windows PC too).
You need first download and install iTunes on PC:
https://www.apple.com/itunes/download/
Then use this iTunes to copy .mp3 files to iphone 6s.
iTunes (/ˈaɪtjuːnz/ or /ˈaɪtuːnz/)[4] is a media player, media library, online radio broadcaster, and mobile device management application developed by Apple Inc. It is used to play, download, and organize digital downloads of music and video (as well as other types of media available on the iTunes Store) on personal computers running the macOS and Microsoft Windows operating systems. The iTunes Store is also available on the iPhone, iPad, and iPod Touch.
https://en.wikipedia.org/wiki/ITunes