- Until the slider displays, press and hold the Power (Sleep/Wake) button.
- To turn off your iPhone fully, drag the slider.
- Allow roughly 30 seconds to pass.
- Press and hold the Power button until the Apple logo shows after the timer has expired. After that, your iPhone will reset.
If your iPhone 6s becomes stuck in headphone mode and the screen becomes unresponsive, you can force the device to restart.
- To force a restart, press and hold the Power (Sleep/Wake) and Home buttons at the same time until the Apple logo displays, then release both keys. Wait until your iPhone has completely rebooted before checking to see whether it has already returned to regular mode.
Both are considered basic but efficient approaches for resolving minor software issues on your mobile device. These approaches are also deemed safe because they have no effect on your device's data.