Have you turned on your smartphone and found a mysterious crescent icon small white or gray symbol on the screen in the top notification bar? Don't panic: it's not a virus or a broken display. This way Android signals that the mode "Do not disturb" (Do Not Disturb, DND) is on, which blocks notification sounds and calls. In 90% of cases, the problem is solved in 30 seconds, but sometimes it requires deep settings - especially if the icon appeared after an update or reset.
In this article we will analyze all possible reasons for the appearance of a crescent moon on Android - from banal to hidden, and also give step-by-step guide for smartphones Samsung, Xiaomi, Google Pixel and other brands. We will pay special attention to cases when the icon does not disappear even after disabling the Do Not Disturb mode - this may indicate a failure in the services com.android.systemui or an application conflict.
What does the crescent moon icon mean on Android
Crescent in status bar is a visual indicator of the mode "Do not disturb" (DND). It appears when:
- ๐ You manually activated DND through the quick settings panel or the sound menu.
- ๐ An automatic rule was triggered (for example, "Quiet sleep" from 23:00 to 7:00).
- ๐ค The system turned on the mode due to low battery (on some firmware).
- ๐ A crash occurred after updating the OS or resetting the settings.
On different versions Android the icon may look different:
- ๐ Android 10-13: white crescent on a dark background (or gray on a light background).
- ๐ Android 14+: an outline icon with the lower part filled in.
- ๐ฑ Samsung One UI: the icon can be duplicated in the notification panel as the text "Do not disturb".
If the crescent is blinking or appears together with ! in a triangle, this is a sign software conflict. Most often, this happens after installing applications to block notifications (for example, Digital Wellbeing or Focus Mode) or due to errors in operation Notification Manager.
Method 1: Disabling through the quick settings panel
The fastest method is to use notification curtain. It will work in 80% of cases if the mode is turned on manually or according to a schedule.
- Pull down from the top edge of the screen to open the notification panel.
- Find the icon "Do Not Disturb" (crescent or DND inscription). On Samsung it may be called "Sleep Mode".
- Tap on it once - the mode will turn off and the crescent moon will disappear after 1-2 seconds.
If there is no icon on the panel:
- ๐ Swipe the curtain left/right - on some smartphones the buttons are hidden behind an additional swipe.
- โ๏ธ Click "Edit" (pencil in the corner of the panel) and add the DND button to the active ones.
โ๏ธ Checking the notification panel
โ ๏ธ Attention: On Xiaomi with firmware MIUI 14+ Do Not Disturb mode can be duplicated in the menu Settings โ Sound and vibration โ Sleep mode. Disable it there if the curtain did not help.
Method 2: Sound and notification settings
If the crescent moon remains after disconnecting through the curtain, check system settings. The algorithm differs depending on the version Android:
| Android version | Path to settings | Action |
|---|---|---|
| Android 9-11 | Settings โ Sound โ Do not disturb |
Toggle the toggle switch to "Off." |
| Android 12-13 | Settings โ Notifications โ Modes โ Do not disturb |
Disable the mode and uncheck "Scheduled" |
| Samsung One UI | Settings โ Notifications โ Do not disturb |
Select "Off" and cancel all rules |
| Xiaomi MIUI | Settings โ Sound and vibration โ Sleep mode |
Deactivate all timers |
On Google Pixel and smartphones with "clean" Android additionally check:
- Open
Settings โ Digital Wellbeing and Parental Controls. - Select "Focus Mode" or "Restful sleep".
- Make sure that no rules are active.
If after disconnecting the crescent moon returns after 5-10 minutes, the problem is automatic rules. Go to Settings โ System โ Schedule (or Modes) and delete all tasks associated with DND.
Why does the mode turn on by itself?
Most often this happens due to a conflict between system rules and third-party applications (for example, Sleep as Android or Forest). Also, the culprit may be a malfunction of the service com.android.server.policythat manages power modes.
Method 3: Resetting notification settings
When the crescent moon does not disappear even after manual shutdown, this will help reset notification settings. This will return all DND settings to factory settings without losing data.
- Open
Settings โ Applications. - Tap on the three dots in the upper corner and select "Special access".
- Go to
Notifications โ Notification settings. - Click "Reset notification settings" and confirm the action.
After restarting your smartphone, check if the icon has disappeared. If not, proceed to the next method.
โ ๏ธ Attention: On Huawei i Honor s EMUI resetting notifications may require you to enter your account password Huawei ID. Make sure you remember it before starting the procedure.
For devices with Android 14 and newer, additionally do:
adb shell cmd notification allow_listeners -c
This command will reset all permissions for applications that manage notifications. Requires connection to a PC and USB debugging enabled.
Method 4: Removing conflicting applications
Third-party apps to block notifications or optimize the battery often intercept control of the DND mode. If the crescent moon appears after installing new software, remove:
- ๐ก๏ธ Sleep applications: Sleep as Android, Sleep Cycle, Pillow.
- ๐ต Notification blockers: Focus Mode, Freedom, Offtime.
- ๐ Optimizers batteries: Greenify, AccuBattery, Battery Doctor.
- ๐ค Launchers with integrated modes: Nova Launcher, Action Launcher.
How to check which application is at fault:
- Start your smartphone in safe mode (press the power button โ "Safe Mode").
- If the crescent moon has disappeared, the problem is in third-party software.
- Uninstall suspicious apps one by one, rebooting the device after each removal.
On Samsung additionally check Settings โ Device care โ Battery โ Modes and schedule. Disable all tasks related to "Adaptive battery" or "Optimization sleep".
Before deleting the application, check its permissions in Settings โ Applications โ [Name] โ Permissions. If there is an item "Change system settings", this is the main suspect.
Method 5: Manually deleting settings files (for advanced)
If all the previous methods did not work, remains manually reset DND configuration files. This method requires rights root or access to ADB.
Instructions for ADB (without root):
adb shell settings delete global zen_modeadb shell settings delete global zen_mode_config_etag
adb shell pm clear com.android.settings
After executing the commands, reboot the device.
For users with rootaccess:
- Open Root Explorer or FX File Manager.
- Go to
/data/data/com.android.providers.settings/databases. - Delete the file
settings.db(or only records fromzen_modevia SQL editor). - Reload smartphone.
โ ๏ธ Attention: Incorrect editing of system files can lead to data loss or cyclic reboot. Before proceeding, create a backup copy via adb backup or TWRP.
On Xiaomi c MIUI additionally clear the application cache com.miui.weather2 โit sometimes conflicts with notification services.
If the crescent moon returns after manual cleaning, the problem lies in the firmware. Try updating the OS or performing a factory reset (while saving the data).
What to do if nothing helps
If the crescent icon remains despite all the manipulations, the reasons may be deeper:
- ๐ Firmware failure: Especially after an over-the-air (OTA) update. The solution is to reflash the device via Odine (Samsung) or Fastboot (for Pixel/Nexus).
- ๐ ๏ธ Damage to system files: Often occurs after incorrectly obtaining root access. Only a full reset will help (
Wipe Datain Recovery). - ๐ฑ Hardware problem: On some models Meizu and Oppo a crescent may be displayed due to a malfunction of notification indicator (LED). In this case, repair is required.
Before radical measures, try:
- Update all applications in Google Play.
- Clear the service cache
Google Play Services(Settings โ Applications โ Google Play Services โ Storage โ Clear cache). - Run soft reset: hold down the power button + volume up for 10-15 seconds (until vibration).
If the smartphone is under warranty, contact a service center. Independent tampering with system files may void the warranty.
FAQ: Frequently asked questions about the crescent moon on Android
Why does the crescent appear only at night?
Most likely, you have activated automatic "Do not disturb" mode according to a schedule. Check the settings in Settings โ Sound โ Do not disturb โ Schedule. On Samsung this could be the "Rest Sleep" function in the application Samsung Health.
Is it possible to remove the crescent moon, but leave Do Not Disturb mode?
No, the icon is a system indicator of the active mode. However, Android 12+ you can hide it through ADB:
adb shell settings put global icons_visible_in_status_bar -1
But this will hide everything icons in the status bar, including battery and network.
The crescent moon appeared after the update - what what to do?
This is a typical problem when upgrading to a new version. Android. Try:
- Clear application cache
Settings(Settings โ Applications โ Settings โ Memory โ Clear cache). - Reset notification settings (see Method 3).
- If it doesnโt help, roll back to the previous firmware version.
A crescent moon is also displayed on the lock screen. How to remove it?
This is a feature Android 11+where the mode indicators are duplicated on the lockscreen. hide:
- Open
Settings โ Lock screen. - Select "Lock screen style".
- Disable the option "Show status icons".
On Samsung path: Settings โ Lock screen โ Widgets โ Status icons.
After a factory reset, the crescent moon remained. Why?
This indicates damage to the /system partition or a conflict with the firmware. Solutions:
- Reflash the device through official utilities (Odin, Mi Flash Tool).
- If the smartphone rootis broken - perform a complete clean through TWRP (including
Dalvik CacheiSystem). - Check the integrity of the firmware with the command:
adb shell e2fsck /dev/block/bootdevice/by-name/system