Personalization of the Redmi 9C begins with the installation of unique audio signals that allow you to instantly recognize incoming calls among many other devices. The standard set of tunes pre-installed by the manufacturer often seems to users boring or too quiet in a noisy environment. Replacing the system ringtone with a favorite track is a simple but effective way to make smartphone use more comfortable and personal.
Owners of MIUI devices face certain features of the operating system that distinguish the installation process from standard Android. In this article, we will discuss in detail all available methods for downloading audio files, bypassing possible file system restrictions and configuring special signals for specific subscribers.
Preparation of an audio file for installation
Before you start setting Settings → Sound and vibration, you need to make sure that the music track is correctly stored in the device memory. The file should be in MP3, M4A or WAV format, since these formats are natively supported by the system without conversion. If you downloaded a song from a messenger or browser, it can be in the Download or Telegram Audio folder.
For the correct display and operation of the caller ID function, it is desirable that the track duration does not exceed 30-40 seconds, although the system allows you to put long compositions. You can trim the track with built-in tools or third-party applications like MP3 Cutter.
⚠️ Note: If the audio file is protected by digital rights (DRM) or downloaded from an encrypted streaming service, the system will not be able to use it as a ringtone.
Check the bitrate of the file, the optimal value is considered 128 kbit / s or higher. Too low sound quality can lead to wheezing when playing through the Redmi 9C speaker. Once the file is prepared and lies in a clear folder, you can proceed to the installation procedure.
Installation of the melody through the standard settings menu
The most reliable and recommended way to change the sound of a call is to use the MIUI standard interface, which ensures that the system correctly registers a new file and does not cause conflicts when updating the firmware. First, open the Settings menu and find the Sound and Vibration section.
In the list that opens, select Phone Call. The system will offer you a list of preset tunes, but we need All Melodies or Select Melody on the device. By clicking on this, you will open the file manager where you want to find the previously prepared track. Once you select the file, it will automatically become the main ringtone for all incoming calls.
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To quickly find the track you want in the list, use the search function in the file manager by entering the name of the song or artist.
If the list doesn’t have the right folder, use the menu button (three dots or hamburger) in the corner of the screen and select the option to Show internal memory. Navigating the file system in Xiaomi can be a little confusing due to the division into categories, so keep a close eye on the path to the file. Make sure the volume of the call is not kept at a minimum, otherwise you won’t hear the result of your labor.
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Using the system settings menu is the only way to guarantee that the melody is saved after resetting or rebooting the device.
Using the "Themes" app to download ringtones
In the Xiaomi ecosystem, the Themes app is not only a redesigned interface, but also a powerful multimedia tool. Unlike the standard menu, you can find cropped and optimized versions of popular tracks, and download new ones directly from the directory. Open Themes app and go to the bottom menu by selecting the Sounds or Ringtones tab.
Here's a huge selection of audio files, segmented by genre and popularity. You can listen to any track before downloading, which saves time and traffic. Once you find the right song, click Download and then Apply. The system automatically redirects you to the audio settings, where the new track will be selected.
- 🎵 A huge library of free and paid tunes, updated daily.
- 🔍 Convenient sorting by genres, performers and trends.
- ⚙️ Automatic integration with system call without unnecessary actions.
- 📉 Ability to pre-listen to the track before installation on the device.
It is worth noting that the directory requires an active Internet connection and authorization in the Mi Account. Some premium tracks may not be available in your region or require payment in "coins" Mi. However, most standard hits are available for free after watching the commercial.
Customization of individual melodies for contacts
The unique call setup feature for a particular caller is extremely useful to know who is calling without taking the phone out of your pocket. In Redmi 9C, this process is slightly different from pure Android. Open the Contacts app or Phone and go to the right person's card.
Click the More button (usually three dots in the corner) and select Assign a ringtone, and it will open a standard melody selection window similar to what we saw earlier, select a track from the list or download a new track from the device, and once confirmed, the incoming call from that number will play the selected song.
If the “Appoint Ringtones” item is inactive or hidden, make sure that the contact is stored in your phone’s memory or Google account, not on your phone. SIM-The contacts stored on the SIM card have limited editing functionality in modern versions. MIUI. Move the contact to the device’s memory to unlock all personalization options.
⚠️ Attention: When changing SIM-If you are transferring contacts to another phone, your individual ringtone settings may reset if they are tied to the device’s local database rather than synced to the cloud.
Specifics of working with the MIUI file system
Users who are used to other Android shells may find that Redmi 9C does not see music files in folders, due to the peculiarities of scanning the media library. The system by default ignores some directories to optimize performance. To ensure that the melody is displayed in the list of available, place it in the Ringtones, Notifications or Alarms folder at the root of internal memory.
If you create a folder called Ringtones (for calls), Notifications (for SMS), or Alarms (for alarm clocks) in the root directory, the system automatically adds its contents to the corresponding sections of the settings menu, a “hidden” feature that makes life much easier for advanced users.
To move files, use the built-in Explorer. Go to the folder where the music is located (for example, Music or Download), press the file with your finger, select Move and specify the path to the root of internal memory. Accurate adherence to the register of letters in the folder name is important, although modern versions of MIUI have become more flexible in this regard.
The Solution: Why the Melody Doesn't Work
Sometimes, after installing the track, users are faced with the call not playing or playing a standard horn.One of the common reasons is the "Do Not Disturb" mode or the "Silent Mode" mode on. Check the side volume swing and make sure that the call slider is raised up, and not kept to a minimum.
Another common issue is with app access rights: If you use a third-party call (like from Google or Truecaller), it may not have permission to read the device’s memory. Go to Settings → Apps → All Apps, find your call, go to Permissions and make sure that access to Memory or Files is allowed.
Also worth checking is whether the Sound Improvement feature or the equalizer with aggressive settings that can "cut" ringtone frequencies is enabled. Resetting the sound settings to factory values often helps solve software glitches of the audio subsystem.
What to do if the sound is intermittent?
Comparison of Ringtones Installation Methods
To make the installation method easier to choose, we have prepared a composite table comparing the available methods by key parameters, which will help you choose the best option depending on your goals and the availability of an Internet connection.
| Method | We need the Internet. | Difficulty | Flexibility of setting |
|---|---|---|---|
| Through Settings. | No. | Low. | High (any file) |
| Annex Topics | Yes. | Low. | Medium (catalogue) |
| Conductor (Folders) | No. | Medium | Maximum |
| Third-party annexes | Depends. | Tall. | Tall. |
As you can see from the table, the standard method through settings is the most universal. However, using special folders in the file system gives the most control over the structure of audio files. The theme app is ideal for those who are looking for inspiration and are willing to spend mobile traffic.
☑️ Pre-installing check
Additional sound and vibration settings
In addition to choosing a tune, Redmi 9C offers advanced vibration settings. You can adjust the vibration force for calls and notifications separately. To do this, find the Vibration slider on the call in the Sound and Vibration menu. This is especially true when the phone is lying on the table and you need to notice it visually or by the shaking of the surface.
There is also a touch Vibration feature that gives a tactile response when dialing or navigating menus, and some users prefer to turn it off to save battery power, as the vibration engine consumes a noticeable amount of energy when used frequently.
Remember to have sound profiles. In MIUI, you can create your own profiles (e.g., "Meeting", "Sport", "Night"), where you pre-configure volume, vibration and authorized notifications, and switch between them in one click through the control panel.
⚠️ Warning: Setting very loud or sharp tunes to maximum volume can cause the battery to run out quickly and wear the speaker over long periods of use.
Competently adjusting sound notifications turns smartphone use from a routine necessity into a pleasant and personalized experience: Experiment with different tracks, customize unique signals for loved ones, and use profiles to keep your phone from bothering you at the wrong time.