How to change the sound of charging connection on Xiaomi Redmi Note 9

Modern Xiaomi smartphones, including the popular Redmi Note 9, offer users a wide range of options for personalizing the interface. One aspect that is often overlooked but can significantly improve the user experience is the sound of system events. Standard tunes preinstalled by the manufacturer can seem boring or too quiet, especially in noisy environments, which is why the question of how to change the sound of the charging connection becomes relevant for many owners of devices based on the MIUI shell.

The process of replacing the audio file to signal the start of charging does not require root access rights or complex manipulation of system files in most cases. However, depending on the version of the Android operating system and the modification of the MIUI interface, the paths to settings may vary slightly. Owners of the Redmi Note 9 are more fortunate, since the device came with a fairly recent version of the software that allows you to manage audio streams flexibly. Below we will discuss in detail all available methods, from standard system tools to the use of specialized applications.

It's important to understand that changing system sounds is not just a matter of aesthetics, it's also a functional necessity. A unique sound will help you instantly identify the power connection without even looking at your smartphone screen. This is especially useful if you're using multiple chargers in different rooms or if the notification indicator is poorly visible at night. Let's start by looking at the algorithms of action in detail.

Standard sound settings in MIUI

The first and most logical step for any Xiaomi user should be to explore the built-in features of the system. The MIUI shell installed on the Redmi Note 9 contains an extensive library of pre-installed melodies and sound effects. Manufacturers often hide some options in the submenu, so a careful study of the audio settings section is a must.

In the list of parameters that opens, you'll find the audio item that you need, which can be called just Sound and Vibration in different versions of the firmware, or it can be called Sounds and Tactile Recoil in a more extended way, and within that section, you'll find a key option that we need, which is usually at the top of the list or it's a separate group called System Sounds.

Find Charging Sound or Charging Connection, and click on it, you'll open a list of available audio files, and here you'll find both classic tonals and more modern sound effects that are specific to the Xiaomi ecosystem, and choosing one of these will instantly change, and the next time you connect the cable, you'll hear a new signal.

• 🔊 A standard set of melodies includes short signals of different tones.
• 🎵 Some design themes can add their unique sounds to the overall list.
• ⚙️ Ability to turn off sound completely through the volume slider of system notifications.

It is worth noting that in some regional versions of the firmware (e.g. Global or EEA), the set of sounds may differ from the Chinese version. If you do not find the desired item on the menu, your version of MIUI may have restrictions imposed by carrier or region, in which case it is worth checking for system updates or using alternative methods described below.

⚠️ Note: If you select an audio file that is too long as a system sound, it can be cut automatically by the system. 3-5 seconds for comfortable perception.

Using standard tools is the safest way to change settings, it does not require the installation of third-party software and ensures stable operation of the system. However, if you do not like the built-in sound library, you can always download your own audio files and integrate them into the system through a file manager or specialized applications.

Using design themes to change sounds

One of the strengths of Xiaomi’s ecosystem is the Themes store. It’s not just a way to change icons and wallpaper, but also a powerful tool for customizing the sound. Many Redmi Note 9 users underestimate the potential of this app, considering it only a means of visual tuning. In fact, the themes often contain packages of system sounds, including ringtones, notifications and, importantly for us, the sound of charging.

To use this method, open the Themes app on your smartphone. In the search bar, type in a query related to the desired style, such as "Minimal sound" or "Nature sounds." When viewing a theme card, look for the "Content" or preview section. Often authors indicate that the theme includes system sounds.

Once you have installed and applied the theme, new audio files replace the standard system signals, a complete solution that changes the audio landscape of the entire device. If you only like the charging sound from a particular theme, but the visual style doesn't fit, you can apply the theme, and then in the Topic settings → Profile → Standard return the visual part, with audio files often remaining active until the profile or theme changes.

An important advantage of using themes is their security and verification by the moderators of the Xiaomi store. You can be sure that the downloaded content does not contain malicious code. In addition, the theme store offers a huge selection of free options, which allows you to experiment with sound design without financial costs.

• 🎨 Thousands of free themes with unique audio packages are available in the store.
• 🔄 The ability to quickly change sound style in one click.
• 🛡️ Security guarantee of downloaded files from the manufacturer.

Some advanced users create their own themes using the MIUI Theme Editor tool on their computer, which allows you to package any favorite sound into a theme format and install it on your Redmi Note 9. However, this method requires more knowledge and file preparation in a special.mtz format.

Application of third-party applications for sound management

If standard features and themes are not enough, Google Play apps come to the rescue. There are many utilities developed by enthusiasts to expand the functionality of Android. To replace the charging sound with the Xiaomi Redmi Note 9, sound managers or automation applications are great, they allow you to assign any audio files from the phone’s memory to system events.

One popular solution is to use applications like ZEDGE or specialized Sound Changers, and once you install an application, you'll need to give it the permissions you need, usually access to a storage facility to read audio files and permission to change the system settings of the audio, and without those rights, the application won't be able to replace it.

The process of replacing through third-party software often goes like this: you select the category "System sounds", then find the item "Charging" (Charging) and select a file from your library. The application itself copies the file to the desired system folder and writes a path to the registry settings Android, which is a convenient way if you want to use your own voice recording or unique sound effect.

Be careful when choosing apps. Many of them may contain intrusive advertising or request excessive access rights. Always read other users' reviews and check developer ratings before installing. Redmi Note 9 has well-optimized applications that support running in the background without aggressive energy saving.

⚠️ Note: When installing applications to change system files, antivirus MIUI Google Play Protect can issue warnings, which is the standard response to a request for modification rights, but only the highly-rated utilities you have to use are proven.

There are also automating applications like MacroDroid or Tasker that are "If event, then action." You can create a macro that says, "If battery status changes to charge," play the file'my_sound.mp3'". This method is more flexible, but requires initial script customization.

Manual file replacement through file manager

For advanced users who prefer full control of the device, there is a method of manual replacement of system files. This method does not require the installation of unnecessary applications, but involves working with the Android file system. On the Xiaomi Redmi Note 9, this will require a built-in Explorer or a third-party file manager with extended rights.

System sounds in Android are usually stored in the directory /system/media/audio/ui/. However, this folder is not accessible to the average user. To change the file here, you will need root rights, obtaining which voids the warranty and can lead to unstable system operation. So we will look at a method that works on standard devices without hacking.

Without root rights, you can try creating a file with a name in the sound folder if the system allows it through some launchers or themes, but on pure MIUI this is limited. A safer option to manually configure is to use the "Your Sounds" function in the settings if your version of MIUI supports import. You copy the audio file to the Notifications or Alarms folder in internal storage, and the system can pick it up as an available option.

If you do decide to investigate the file system, be extremely careful. Deleting or damaging system files can lead to a cyclic restart (bootloop). Always have a computer and cable on hand for recovery via Fastboot if something goes wrong.

• 📂 Standard paths to sound: /system/media/audio/ui/ (root).
• 💾 Folder for custom sounds: /storage/emulated/0/MIUI/sound/ui/ (vary).
• 📝 File formats: the system prefers.ogg or.mp3 bitrate up to 128 kbit/s.

Setup of automation scenarios

Automation is a powerful tool that turns a smartphone into a truly smart device. The Redmi Note 9 can set up complex charging response scenarios that go far beyond simply changing the tune, using built-in automation features in MIUI (if available in your version) or third-party apps.

You can use scripts to adjust not only the sound, but also other actions, for example, when you connect the charger, the phone can automatically turn on Do Not Disturb mode, brighten the screen, or run a battery monitoring app, and the sound is part of the complex action.

To create this scenario, in the automation application, select the trigger "Power Connect." Then add the action "Play sound" and select the file you want. The advantage of this method is flexibility: you can set different sounds for different battery levels, such as a quiet squeak at 20% and a loud signal at 80%.

Automation allows you to create unique behaviors that are tailored to your rhythm of life, especially for those who use a smartphone in specific environments where standard notifications may not be effective.

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Tip: Back up your scripts in the cloud or export them to a file. When you reset or reinstall the automation application, you don't have to reconfigure everything.

Troubleshooting and troubleshooting

While adjusting the charging sound to the Xiaomi Redmi Note 9, users may encounter a variety of problems. MIUI is known for aggressive battery optimization, which can sometimes block background applications or prevent sounds from playing. If you have installed a new sound but it doesn't play, check the power saving settings first.

A common problem is the lack of sound when connected when the phone is in "No Sound" or "Do Not Disturb" mode. Make sure that the sound profile settings allow system sounds to be played even in quiet modes. Also check the volume of the media channel and notification channel, as the charging sound may be tied to one of them.

If the sound is intermittent or distorted, it is possible that the file is unsupported or of too high quality.Convert the audio file to.ogg or.mp3 with a bit rate of no more than 128 kbit/s. Too long files may not play correctly.

⚠️ Note: After the firmware update MIUI All customized sound settings can be reset to factory, and be prepared to repeat the setup procedure after each major system update.

In some cases, conflict can arise because of the themes that have been set, so if the sound has gone missing after changing the theme, try to return the standard theme or clear the theme cache, which often resolves the interface's audio problems.

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The main reason for Xiaomi’s sound problems is aggressive energy saving, and be sure to add the sound-change app you’re using to the battery’s exclusion list (“No Limits”).

FAQ: Frequently Asked Questions