Cannot control Bose volume with smartphone or tablet volume buttons | Bose Smart Soundbar 300
On iOS devices, the iOS device's volume buttons do not affect the Bose product.
If you are running the Bose app on an iOS device, that device's volume buttons will not control the volume of the connect Bose system. Instead, use the Bose app volume control for the system or use the system's volume control.
Close and re-open the Bose app.
- Swipe up from the bottom center of the screen to view active apps.
- Swipe left or right to find the Bose app.
- Swipe up on the app to close it.
- Locate the Bose app then press and hold on the app icon.
- Select App Info (or the circled "i" icon) from the pop-up that appears.
- On the App Info screen, select Force Stop.
After the Bose app has been closed, tap on the app icon to re-open it.