How to install different tunes on two Xiaomi Redmi 9A SIM cards

Modern smartphones like the Xiaomi Redmi 9A allow you to effectively manage two numbers at once, making them an ideal tool for separating personal and work lives. However, standard settings often offer only one common call, which creates confusion when an incoming call arrives. Users often wonder whether it is possible to personalize the sound for each of the SIM cards to instantly understand who exactly needs to answer.

Fortunately, the MIUI operating system installed on the device has deep functionality for customizing audio notifications. Customizing ringtones not only adds aesthetics, but also significantly improves the comfort of using the gadget in noisy environments. In this guide, we will analyze all the nuances of the process, eliminating possible errors in the configuration.

You don’t need superuser rights or complex software to get started. All the necessary tools are already built into the standard Redmi 9A interface. It’s important to follow the sequence of actions carefully, since the settings menu in different versions of the firmware can have slight visual differences.

Preparation of audio files and system requirements

Before you get to the settings, you need to make sure you have the audio files yourself that you plan to use. MIUI supports most popular formats, but files in the format are best for stable operation MP3 or M4R. Sound quality also plays a role: too low bitrate can sound unpleasant on the smartphone speaker.

Files should be stored in the internal memory of the device. If you downloaded tunes from the Internet, they are most likely in the Download or Download folder, Ringtones_Custom, And you can move all the tracks that you've prepared, and it'll speed up the search on the system menu.

Note the length of the track. Too long songs can be cut by the system or play incorrectly as a call. The optimal duration is 15 to 30 seconds. If the file is longer, it is better to edit it pre-edited on a computer or using a special editor application.

⚠️ Note: Do not use files with DRM-protection (copyright tracks from streaming services), as the system will not be able to recognize them as a system ringtone.

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Use files no larger than 1 MB for each tune so as not to waste excess RAM when loading the call interface.

Setting up the ringtone for the first SIM card

The installation process starts with the main settings menu, and you need to find the audio section, and in the MIUI shell, the path may vary slightly depending on the version, but the logic remains the same. Open the Settings app and find the Sound and Vibration.

In the menu that opens, you'll see the SIM split if you have two active modules installed on the device. Click on Ringtone SIM 1. You'll see a list of standard tunes preset by the manufacturer. To select your file, you'll scroll down the list and press + or select a tune from memory.

Once you select a file from the file manager, the system will apply the changes instantly, you will hear a short track snippet to check. It is important to check the volume immediately to make sure the file is not too quiet and not too loud compared to the system sounds.

• 🎵 Open the settings and go to the sound section.
• 📱 Select the item corresponding to the first SIM card.
• 📂 Click on the plus and find your file in memory.
• ✅ Confirm your choice and listen to the result.

Install a unique call for the second SIM card

The algorithm for the second SIM card is almost identical, but it has its own peculiarities in the context of dividing contacts. Go back to the Sound and Vibration menu and now select Ringtone SIM 2. Here you can choose a completely different track that will contrast with the first one, which will make it easier to identify the caller.

Some users prefer to use calmer or sharper sounds for the second SIM card to subconsciously react differently, for example, for a working SIM card, strict, shorter signals are often set, and for a personal one, more melodic and longer compositions are often set.

If you don't see the select button from memory, make sure the Themes or Sounds app has permission to access files. In newer versions of Android, access rights may be limited by default for security purposes. Go to Apps → All Apps → Settings → Permits and check for storage access.

After setting the second ringtone, it is recommended to make a test call from another number to both SIM cards in turn, this will make sure that the switching is working correctly and the phone does not reset the settings after the restart.

Personalization of notifications for contacts and applications

Setting different tunes on SIM cards is just the first step, and much finer adjustment is possible for specific contacts, and if you want to hear a call from a particular person, no matter what SIM card they're calling, you can reset the settings for a particular number.

Open the Contacts app or Phone app, find the person you want, and go to the subscriber card, and you'll find Melody or Rington, and you can click on it and you can select a unique sound for that person, and that setting takes precedence over the general SIM card settings.

Also worth paying attention to notifications from messengers: users often confuse calls via SIM and calls via WhatsApp or Telegram. For each application, you can configure your audio profiles in the Notifications section in the general settings of the system or within the applications themselves.

⚠️ Note: If you have set a contact ringtone but it is not working, check if this contact is kept twice with different numbers, one of which may be labeled as spam.

Use of themes and Mi Sound store

Xiaomi’s ecosystem offers a built-in theme and sound store that users often ignore. There’s a Sound tab in the Themes section of the desktop, and you’ll find thousands of free and paid ringtones that are already optimized for Redmi 9A speakers.

The advantage of using the built-in store is that it's automatically integrated, and the downloaded track immediately appears on the list of available SIM card tunes without having to move files through folders, which is especially convenient for those who don't want to deal with the file system.

In addition, the store often comes out with themed selections, such as sounds from popular games or movies. You can download a whole pack of sounds that will change not only the ringtone, but also the sounds of the keyboard, screen locks and notifications, creating a holistic audio style of your device.

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Xiaomi Theme Store is the safest source of ringtones, ensuring format compatibility and the absence of viruses in audio files.

Solution: Why the setting doesn't work

Despite the simplicity of the interface, users may encounter situations where settings are not saved or applied incorrectly. One of the common reasons is the failure of the system application MIUI Sound, in which case cleaning the cache of this application through the application management menu helps.

Another common problem is energy saving: Aggressive battery settings in MIUI can kill the processes responsible for the reproduction of user ringtones, replacing them with standard ones.

It's also worth checking whether No Sound or Vibration is enabled with physical buttons or through the notification curtain. Sometimes users accidentally activate these modes and then try to set up ringtones without understanding why the phone is silent.

• 🔄 Restart the device after installing new files.
• 🔊 Check the volume slider of the call at the time of setting up.
• 📁 Make sure the file is not damaged and played by the player.
• 🛡️ Turn off battery optimization for system sound services.

⚠️ Note: When you reset your settings to factory, all custom ringtones will be deleted, so it is recommended to store their backups in cloud storage.

Questions and Answers (FAQ)