control center iphone 7+

Hey liz_liz_liz,

Are you referring to adjusting the volume in Control Center for your iPhone, as mentioned here?: Adjust the volume on iPhone

Adjust the volume in Control Center

When iPhone is locked or when you’re using an app, you can adjust the volume in Control Center.

Open Control Center, then drag .

If so, try this:

• Restart your iPhone
• Test once more.
• If the issue remains after a restart, see if adjusting 'Change with Buttons' makes a difference: Settings > Sounds & Haptics > Change with Buttons

If we've misunderstood your question or issue, please feel free to reply back to this post with more specific details about what you're experiencing.

Best regards.