Fast Mute uses a foreground service so it can display the mute overlay whenever you need it. Some Android devices automatically stop background apps to save battery power. If this happens, the Fast Mute overlay may stop appearing until the app is reopened.
If you notice this behaviour, try the following:
- Open Settings on your device.
- Find Apps (or Applications) and select Fast Mute.
- Open the Battery or App battery usage section.
- If available, enable Allow background usage, Unrestricted, or Don’t optimize for Fast Mute.
- On some devices, you may also need to disable battery optimisation:
- Settings → Apps → Fast Mute → Battery → Battery optimisation
- Choose Don’t optimize (if available).
- Some manufacturers provide additional background app controls. Look for settings such as:
- Manage background apps
- Background limits
- Auto launch
- App launch
- Protected apps
- Sleeping apps
- Adaptive Battery
The exact names and locations of these settings vary by device manufacturer and Android version.
If Fast Mute still stops working after some time, your device may have additional battery-saving features that restrict background apps. Search your device settings for battery optimisation, background apps, or background activity, and ensure Fast Mute is allowed to run in the background.
Fast Mute uses a foreground service so it can display the mute overlay whenever you need it. Some Android devices automatically stop background apps to save battery power. If this happens, the Fast Mute overlay may stop appearing until the app is reopened.
If you notice this behaviour, try the following:
The exact names and locations of these settings vary by device manufacturer and Android version.
If Fast Mute still stops working after some time, your device may have additional battery-saving features that restrict background apps. Search your device settings for battery optimisation, background apps, or background activity, and ensure Fast Mute is allowed to run in the background.