This section gives you step by step instructions on how to adjust the left/right volume balance in iOS 15, with pictures of the screens to help.
1. Tap the Settings icon on your Home screen to open the Settings app. Scroll down and tap Accessibility.
2. On the Accessibility screen, tap Audio/Visual.
3. On the Audio/Visual screen, scroll down to the Balance section and adjust the slider to make the volume louder on the left or right side.
4. When you are happy with your settings, you can return to the Home screen by swiping up from the bottom of the screen or by pressing the Home button on devices with a physical Home button.