Smartphone personalization is not just a nice bonus, it’s a necessity for a comfortable use of the device in everyday life. When your Xiaomi or Redmi receives a message, you should instantly understand that it is a SMS, not a notification from a messenger or social network. Standard tunes often merge with the general noise of notifications, which leads to the skip of important messages from banks or delivery services. Owners of modern shells MIUI and HyperOS have ample options for setting up audio, but the interface sometimes hides the necessary options.
In this article, we will discuss in detail all the available ways to replace the standard squeak with a unique track. You will learn to use built-in themes, download your own. MP3-Knowing how to change the sound of SMS on Xiaomi will allow you to better control the flow of information and always stay connected. We will look at the nuances of working with the file system and settings of system notifications, which are relevant for models released in 2026 and 2026.
Before we start to change, it is worth noting that the procedure may vary slightly depending on the version of the shell. However, the general principle remains the same for the entire model range, whether it is the flagship Xiaomi 15 Ultra or the budget Redmi 14C. The main thing is to have the desired audio file and access to the settings menu. Below we will describe each step in detail so that you do not have difficulties navigating the menu.
Using the built-in Themes app to change the tune
The easiest and most obvious way to change the audio is to use the regular Themes app, which is pre-installed on all the company's devices and doesn't require any super-user rights or third-party software. The catalog offers thousands of options, from short signals to full-fledged music. To get started, open the app and go to the Sounds section or search for SMS.
Once you select a track you like, the system will suggest you use it. Please note that some sounds may be paid or require you to view ads for activation. The free section, "Free" also offers quality options. Once you apply the theme, the sound profile will change globally, but you can always return the standard settings by selecting the theme "Classic" or "Default" in the "Profile" section.
- 🎵 Open the Themes app on the home screen or in the Tools folder».
- 🔍 Go to the “Sounds” tab and select the “Messages” or “SMS” category».
- ⬇️ Press the download button next to your favorite track and confirm the application.
- ✅ Check the result by sending a test message to your number.
It's important to understand that using a theme can change not only SMS sound, but also system clicks, screen locks and alarms. If your goal is to change just one parameter, this method may seem redundant. However, for those who want to completely update the visual and sound style of the interface, this is the perfect solution. The built-in store is regularly updated, adding new tracks that are compatible with the latest versions of HyperOS.
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When downloading sounds via mobile Internet, keep an eye on traffic, as some high-quality audio files can weigh several megabytes.
Set up your own sound through the file manager
If you don’t like the standard options, you can install any MP3-The audio file must be stored in the device's memory, and the most reliable way to place files so that the system recognizes them correctly is through a folder. MIUI/sound Or Notifications in internal storage. Once the file is moved to the desired directory, it will automatically appear in the list of available tunes in the system settings.
Using a file manager gives you complete control over the content. You can crop tracks, change their bitrate and name. However, be careful with formats: the system works best with MP3 and M4A. Formats like FLAC or WAV may not appear in the list of notification sounds, although supported by a music player.
☑️ Preparation of the file for SMS
After you place the file, go to the sound settings. The path usually looks like this: Settings → Sound and Vibration → Additional audio settings → Notification Sound. In the list that opens, scroll down to the Local or On-Device section where your file should be displayed. If the file is not visible immediately, try restarting your smartphone or clearing the the the Themes app cache.
⚠️ Warning: Do not place executable files or scripts in system sound folders. Use only verified audio formats downloaded from trusted sources to avoid potential security vulnerabilities.
Change the signal for specific contacts
One of the most useful features in Xiaomi’s arsenal is the ability to assign a unique SMS sound to a specific subscriber, which allows you to know who wrote the message without looking at the screen, and is especially relevant for important contacts: management, family or emergency services, and is set up directly through the Contacts or Phone app.
To implement this feature, open the contact card you want. In the action menu (three dots or the "More" button), select "Notification Sound" or "Special Signal" where you can select a tune from a list of system or local tracks. This setting takes precedence over the general settings of the phone. Even if the global settings are "No Sound", for favorite contacts, the sound can be turned on if the current mode of operation allows (not "Do Not Disturb").
| Type of setup | Priority | Where to change | Features |
|---|---|---|---|
| Global | Low. | Settings → Sound | It works for anyone who does not have a personal setting. |
| For contact | High-pitched | Contact card | Overrides the global setting for this number |
| Do Not Disturb mode | critical | Control panel | Can block all sounds except for a select few |
It's worth noting that when you sync your contacts with a Google or Mi Cloud account, you can save your personal audio settings, but when you switch to another phone, you sometimes reset those settings and you have to reset them, because the standard contact sync protocol doesn't always send you a path to a local audio file unless it's a system file.
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Personal contact sound only works if the number is stored in the phone’s memory or SIM-card with the correct recording format (country code).
Notification settings in the “Messages” app
Modern versions of the MIUI and HyperOS shell allow you to manage sounds more flexibly through the settings of the message application itself. Often users change the sound in the general settings of the phone, but forget that the application may have its own priorities. Go to Messages, click three dots in the corner and select Settings. Next, look for the Notifications section.
Here you'll see the Sound switch and the option to select a tune. If this option is activated, it will use the track it selects. It's important to check whether the Important or Priority category is included, which can ignore some of your settings for fast delivery. There is also a division into notification channels in newer versions of Android (which the system is built on).
Click on Notification Categories or Notification Types, and you'll see a list of "New Messages," "Sent", "Delivery Errors." Each of these types can be assigned a different sound profile, such as making the message sent quiet and short, and the incoming message loud and long, and this detail helps you better navigate the status of the correspondence.
⚠️ Note: After a major system update (e.g. transition from the MIUI 14 on HyperOS) notification channel settings may be reset to factory ones.
In some cases, the app may ask for permission to display notifications or access storage to play local tunes. Make sure all necessary permissions are given in Settings → Applications → Messages → Permissions. Lack of access to storage is a common reason why the phone is silent even when the setup appears to be done.
Problems with SMS sound and ways to solve them
Despite its apparent simplicity, users often face a situation where the sound of the SMS is not played or played back standard, ignoring the settings. One of the most common reasons is activated mode "Do not disturb" or "Silent mode." Check the control panel (swipe from top to bottom) and make sure that the sound slider is not omitted and set silence mode.
Another common problem is energy saving: Aggressive battery optimization algorithms on Xiaomi can put the message app to sleep, causing the sound to not turn on when the message arrives. Go to Settings → Battery → Applications → Messages and set the energy saving mode to “No Limits” position, which ensures that the application is always active in the background.
- 🔇 Check if the audio is turned off specifically for the dialogue (click on the contact name and check the settings inside the correspondence).
- 📱 Make sure the speaker is not covered with a cover or contaminated with dust, which can distort the sound or make it quiet.
- 🔄 Reboot the device to reset temporary system audio service errors.
- 📂 Check if the melody file has been moved to another folder or deleted from the memory card.
What if the sound is delayed?
If you use a Bluetooth headset or headphones when a message arrives, the sound can be played through them, not through the phone speaker. This is normal behavior. Check if the audio device is connected if you hear the sound but don't see the visual notification on the screen right away. In Bluetooth settings, you can turn off the system sounds to the headset, leaving only music.
Use of third-party applications for advanced users
For those who don't have the standard functionality, there are Google Play specialty apps like SMS Sounds & Notifications or Zedge that let you not only pick out sounds, but also tie them to the time of day, location or battery status, such as a phone that can be quietly nodding during the day and play a loud tune in the evening.
These applications often have their own sound databases that are updated weekly. They can work as an add-on to system settings. However, it is worth remembering that setting the number of applications to control sound can lead to conflicts. Android only one application is the default for processing SMS, and if a third-party client tries to intercept audio control, this can cause instability.
When using third-party software, read permissions carefully. The audio change app doesn't need access to your contacts or location unless it's a stated feature. Avoid installing dubious programs that promise "sound amplifier" as they often contain ads and can slow down Redmi or POCO.