The sound signal when connecting a charge to the Xiaomi Redmi 9 can be annoying, especially if you connect your phone at night or in a quiet environment. Although this sound signals a successful start of charging, many users want to turn it off. In this article, we will discuss all the current ways, from standard MIUI settings to hidden functions and ADB commands.
It's important to understand that the charging sound is a system notification, and turning it off may require changes in settings that aren't always obvious. We've tested all methods on Redmi 9 with the latest versions of MIUI 14 and Android 12 to ensure they work. If you're using custom firmware or an older version of the software, some of the ways may not work, which we'll mention too.
Before you start, check if the sound is part of the power saving mode or notifications from applications (for example, from Mi Fit or Google Podcasts), sometimes the problem lies not in the system sound, but in third-party software.
Why does Xiaomi Redmi 9 make sound when charging?
The charging connection sound is a standard MIUI function that performs several tasks:
- 🔊 Confirmation of connection: signal indicates that the cable and power supply are recognized by the system.
- 🔋 Charging type indication: on some firmware, the sound is different for slow (5W) fast (18W+) charging.
- ⚠️ Fault Warning: If the sound is accompanied by vibration or error on the screen, it may mean port problems USB-C.
On Redmi 9, this sound is embedded in the system application com.android.systemui and is controlled through notification settings. However, in the latest versions of MIUI, Xiaomi developers have removed the direct option of disabling – it is likely that users do not miss important signals (for example, when connecting uncertified chargers).
If the sound comes suddenly, check:
- 📱 System Updates: Sometimes the sound comes back after the update MIUI.
- 🔌 Type of charger: Some power supplies (especially from other brands) may trigger additional notifications.
- 🎵 Sound Profile: In No Sound or Do Not Disturb mode, system signals may behave differently.
Method 1: Disable via notification settings (without root)
The easiest method is to turn off the sound through the notification menu, which works on most versions of MIUI 12-14, but the path to settings may vary slightly.
- Open the Settings. → Sounds and vibrations.
- Scroll down and select Other sounds and vibrations.
- Find the Sound of Charging Connection (or Charging) and move the slider to the "Off" position.
If there is no such item, try an alternative path:
- Go to Settings → Notifications and Status bar.
- Select System Notifications.
- Find Charging or Power and turn off the sound for this type of notification.
Check the version of MIUI in Settings → About the phone
Make sure your phone is not in "Do Not Disturb" mode.
Connect the original charger
Restart your phone before settings-->
What if you don't have a clause? In some firmware, Xiaomi hides this option, so move on to the following ways, and check if you have carrier shells (such as MTS or Beeline) that sometimes block access to system settings.
⚠️ Attention: Redmi 9s MIUI Global and MIUI Europe can be different, and if you use custom firmware (like Pixel Experience), it may not work.
Method 2: Use of the MIUI Hidden Settings (Hidden Settings)
If standard settings don’t work, you can use hidden MIUI features through a special application, which does not require root rights, but requires the installation of third-party software.
- Download the MIUI Hidden Settings app from Google Play (or APKPure if it isn’t in your area).
If the application does not find the right item, try:
- 🔄 Restart the phone after installation MIUI Hidden Settings.
- 📋 Check if an antivirus is blocking access (e.g., Avast or 360 Security).
- 🔧 Update the application to the latest version.
What if MIUI Hidden Settings is not working?
On some Redmi 9 firmware (e.g. MIUI 13.0.4), the option is hidden deeper, and can be found through a search in MIUI Hidden Settings for "charging".
Method 3: Disconnect through Developer Mode
If previous methods didn't work, you can try turning off the sound through developer mode, which requires activating the hidden menu, but doesn't need root rights.
- Activate Developer Mode: Go to Settings → About Phone. Click 7 times on the MIUI Version (you will be notified "You're a developer!").
Settings
Additionally.
For developers
USB debugging
ADB
adb shell settings put global charging_sound_enabled 0If you don’t have ADB, you can try it without:
- 🔍 In the developer menu, find Quick settings → Show the charging sound and turn it off.
- 🔄 Restart your phone – sometimes changes only apply after a reboot.
⚠️ Note: Not all versions MIUI support charging_sound_enabled. If the sound is still present after entering the command, check the current value of the parameter: adb shell settings get global. charging_sound_enabled If the answer is null or 1, So your firmware is ignoring this setting.
Method 4: Turning off sound through ADB (advanced method)
If none of the previous methods worked, the most reliable (but also the most difficult) method is the use of ADB (Android Debug Bridge), which allows you to directly change system parameters.
What you need:
- 🖥️ A computer with installed Xiaomi drivers and ADB.
- 📱 Redmi 9 phone with debugging enabled USB.
- 🔌 Original. USB-cable (better than the one that came with the kit).
Step-by-step:
- Download ADB from the official Android Developers website and unpack the archive.
- Connect Redmi 9 to your PC and confirm access to debug on your phone.
- Open the command prompt (cmd) in the ADB folder and type: adb devices Make sure your phone appears in the list.
- Execute the command to turn off the charging sound: adb shell settings put global charging_sound_enabled 0
- Reboot your phone: adb reboot
If the sound is still there, try alternative commands:
- To turn off vibrations when charging: adb shell settings put global charging_vibration_enabled 0
- To reset all audio settings (caution!): adb shell settings reset global
1. Install Xiaomi drivers manually through Device Manager.
2. Use another USB-port USB 2.0).
3. Enable the debugging option in the developer settings USB (security parameters) and allow permission change.-->
| ADB Team Team | Description | Works on MIUI 14? |
|---|---|---|
| settings put global charging_sound_enabled 0 | Turns off the charging sound. | ✅ Yes (on most firmware) |
| settings put global charging_vibration_enabled 0 | Turns off vibration when charging | ✅ Yes. |
| settings delete global charging_sound | Removes the sound parameter (can reset settings) | ⚠️ Partially (risk of failure) |
| pm disable-user com.android.systemui | Disables the system interface (last resort!) | ❌ No (will cause the system to collapse) |
Method 5: Manually remove system sound (requires root)
If you have root rights, you can remove or replace the system charging sound, which is the most radical and only suitable for advanced users.
Instructions:
- Install a file manager with root support (such as Root Explorer or Solid Explorer).
- Go to /system/media/audio/ui/
- Find files: Charging.ogg – the sound of charging connection; WirelessChargingStart.ogg – the sound of wireless charging (if any).
Charging.ogg.bak
Reboot the phone.
Alternative: Instead of deleting, you can replace the sound with an empty file:
- Create an empty Charging.ogg file on your PC (you can export silence through Audacity).
- Copy it to /system/media/audio/ui/ with replacement.
- Set the license 644 (r-w-r-----).
If the sound is back, repeat the shutdown in the selected way.