iPhone “Control Center” is a very practical and critical function that can help us quickly access various settings, such as adjusting the volume, switching networks, turning on the flashlight, etc.
If you find that you cannot open the Control Center in any of Apple's own apps or third-party apps when using the Control Center, you can only open it in the main interface, usually Caused by not turning on "In-App Access".
Just go to iPhone Settings-Control Center-App Access and turn on this setting.
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