How to turn off the sound of messages on Xiaomi: a complete guide to MIUI and HyperOS

The sound of incoming SMS on Xiaomi smartphones can be a real problem if you get a lot of messages from banks, services or spammers. Even in Do Not Disturb mode, some notifications break through with a characteristic signal, interrupting meetings, sleep or important conversations. In this article, we will explore all possible ways to turn off SMS sound, from standard MIUI settings to hidden features for advanced users.

The feature of Xiaomi firmware (including HyperOS) is that message sounds are set separately from other notifications, which means that even if you turn off the sound for WhatsApp or Viber, SMS can continue to emit signals. We tested all methods on the latest firmware versions and collected working solutions for the Redmi Note 12, POCO X5, Xiaomi 13T and other popular devices.

Important: Some methods require administrator rights or system files, and if you're not sure what you're doing, use the standard settings of the first three sections.

1. Disabling SMS sound through message settings

The easiest and safest way to do this is to use the built-in Messages app options, which works on all versions of MIUI (12 to 15) and HyperOS, requires no root rights, and takes less than a minute.

Instructions:

• 📱 Open the Messages app (the envelope icon on the home screen)
• 🔧 Click on three dots in the upper right corner → Settings
• 🔔 Select Notifications → The sound of notifications
• 🚫 Click No Sound or select an empty sound file (if there is one in the list)

If there is no sound option on your list, try an alternative path:

1. Go to Settings → Applications → Application Management
2. Find Messages and click on it
3. Select Notifications → Sound.
4. Turn off the switch or select a quiet sound.

⚠️ Note: Some firmwares reset notification settings after updating the system. MIUI.

2. Sound adjustment for individual contacts

If you only need to turn off the audio for specific senders (such as bank SMS or spam), use customized contact settings. This is convenient when you want to save audible notifications from friends, but silently receive service messages.

How to set up:

• 👤 Open the Contacts app and find the right contact
• 📝 Click Edit → The sound of notifications (or by default)
• 🔕 Choose No Sound or Create an Empty Sound Profile
• 💾 Save the changes.

For SMS from unknown numbers (spam, advertising):

1. In the Messages app, open a dialog with an unwanted number.
2. Click on three points → Details → Notifications
3. Turn off the sound or vibration for this chat

💡 Useful tip: For banking SMS (Sberbank, Tinkoff, etc.), it is better not to turn off notifications completely, but to set a quiet sound or vibration, so you do not miss important messages about transactions, but they will not interfere with the notifications.

3.Using the "Do Not Disturb" mode

If you need to temporarily turn off all sounds, including SMS, use Do Not Disturb (DND) System Mode, which is suitable for sleeping, important meetings, or when you want complete silence.

How to turn on:

• 🌙 Swipe down from the top edge of the screen to open the notification bar
• 🔕 Find the icon Do not disturb (the icon of the crossed bell)
• 🕒 Press and hold to set a schedule or exceptions

Advanced settings:

1. Go to Settings → Sound and vibration → Do not disturb
2. Set up a schedule (for example, from 23:00 to 8:00)
3. In the Exceptions section, add important contacts whose SMS will break through silence.
4. Turn off Allow Notification Sounds for Total Silence

⚠️ Warning: Do Not Disturb by default blocks all notifications, including alarm clocks. Before using, check the exception settings in Settings → Don't disturb. → Exceptions and add alarm clocks and reminders.

4. Turn off the sound through Android notification settings

On Xiaomi smartphones, you can manage SMS sounds through Android’s global notification settings.This method is useful if the standard Messages app options don’t work or reset after the update.

Step-by-step:

• ⚙️ Go to Settings. → Annexes → Application management
• 🔍 Find Messages in the List and click on it
• 🔔 Select Notifications → Categories of notifications
• 📤 Click on Incoming Messages or New SMS Category
• 🔇 Turn off the sound switch or set the volume to 0

For advanced users:

adb shell settings put global notification_sound ""

This command will reset notifications to all applications, including SMS, via ADB. Use only if standard methods don’t help.

💡 Key takeaway: Android notification settings take precedence over the app's settings. If SMS sound doesn't turn off through Messages, be sure to check global notification settings.

5. Create an empty audio file (for power users)

If your firmware doesn't have the No Sound option, you can create an empty sound file and assign it as a notification, which requires access to the file system, but doesn't need root rights.

Instructions:

• 🎵 Download any empty one. MP3-file (0 seconds)
• 📁 Put it in a folder. /storage/emulated/0/Notifications/ (Make it if you don't)
• 🔊 In the SMS sound settings, select this file

Alternative methods through ADB:

adb push empty.mp3 /sdcard/Notifications/


adb shell settings put system notification_sound file:///sdcard/Notifications/empty.mp3

⚠️ Attention: Some firmware MIUI They ignore the empty audio files and use the standard signal, in which case only replacing the system file will help. /system/media/audio/notifications/ via Magisk or TWRP, But it requires root rights and can disrupt the system.

6 Problems and Solutions: Why the Sound Doesn't Turn Off

Sometimes even after all the settings, the text continues to play back, so let's look at the typical causes and ways to fix them.

🔧 Diagnostics of the problem:

1. Check which application handles SMS (there may be a conflict between Messages and Google Messages)
2. Make sure in Settings → Sound and vibration → Volume Slider Notifications is 0
3. Try sending a test text from another phone – it’s possible the sound is not coming from a notification, but from a system event.

If nothing helps, the last option is to reset the application settings:

• ⚙️ Settings → Annexes → Communications → Warehouse
• 🧹 Click Clear Data and Reset Settings
• ⚠️ After that, all messages and chat settings will be deleted!

FAQ: Frequent questions about turning off SMS sound