I see that you're only able to listen to music and movies on your iPhone 6s Plus using your headphones. I'm happy to help.
When your iPhone gets stuck in headphone mode or won't recognize your headphones, get help.
Do you have one of these issues?
- After you plug any headphones into your iOS device, sound plays from your device's speakers instead of the headphones.
- You unplug your headphones, but when you adjust volume on your iOS device, you still see a Headphones volume indicator.
If so, take your device to an Apple Retail Store or Apple Authorized Service Provider for inspection. Don’t have a nearby service location? Contact Apple Support.
If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker -- If you're iPhone isn't in "headphone mode", follow the steps in this article.