How to turn off the charging connection sound on Xiaomi: the full guide

Modern Xiaomi smartphones, which run MIUI shells or the new HyperOS, are equipped with a variety of audible notifications that are designed to inform the user about various events. One of these signals is the characteristic sound that occurs when the device is connected to the power source. For many gadget owners, this audio file has become familiar, but in certain situations it can cause irritation or be inappropriate, such as at night or during meetings.

Users often face a dilemma: standard audio settings don’t allow that particular signal to be directly disabled, leaving it active even when the interface is completely silent.This is because the system charging notification in Android logic often equates to system events that should be heard forever.

In this article, we will take a look at all the methods available, from simple changes to the settings menu to more advanced technical solutions, you will learn how to isolate system sounds, use silence modes and apply specialized applications to fully control the audio of your smartphone.

Why does the phone make a sound when charging?

The mechanism for sound when you plug in a USB cable is deep in the architecture of the Android operating system. It's not just a whim of Xiaomi developers, but a standard system behavior designed to give the user feedback. When you insert the plug into the connector, the power controller detects the voltage change and sends a signal to the operating system, which in turn triggers the corresponding audio file.

It's important to understand that this sound is classified as a system event, not a media file or a regular ringtone, which is why a multimedia slider or a ringtone often has no effect on the volume of this notification, and the system believes it's critical to let you know that the battery recharge process has started successfully.

But in today’s environment, where users spend most of their time with smartphones, persistent beeps can be tiring, especially for the Redmi Note and POCO series, where the sound circuit can be set to maximum informativeness by default, and the developers assume that the user will customize the profiles himself if the standard behavior does not suit him.

⚠️ Warning: Shutting down system sounds completely can cause you to stop noticing other important notifications if you don’t set up sound profiles correctly.

It's thought that this sound helps diagnose connector problems, and if the cable is inserted but there's no sound, it may be bad contact, but you shouldn't rely on audio alone, because the visual indicator on the screen and in the status bar is almost instantaneous and works more reliably.

Use of standard sound settings in MIUI and HyperOS

The first and most obvious step is to carefully check the standard settings menu, and the MIUI and HyperOS shells have sections that allow you to flexibly manage audio profiles, and while there may not be a direct button to turn off charging sound, you can significantly reduce the impact of system noise.

You need to go to the Settings menu and select Sound and Vibration. Here you are interested in Additional Settings or Sound Settings (depending on the firmware version). In some regions and versions of the software, there is a System Sound or Lock Sound switch, and turning off these options often removes not only the charging sound, but also keyboard clicks or screen lock sound.

If a simple switch doesn't work, you should pay attention to Do Not Disturb mode, which is designed for these situations, and when you activate it, you stop the phone from making any sounds other than alarm clocks and emergency calls, which is the perfect solution for night charging.

• 🔇 Do Not Disturb: Completely blocks all sounds, including system charging notifications, which is perfect for sleep.
• 🔊 Loudness of the system: In some versions MIUI Slider "System" affects the sound of the connection, try to reduce it to a minimum.
• 🌙 Automation: Set up automatic silence on schedule so that your phone will shut down at night.

It’s also worth checking the theme settings. Some third-party themes downloaded through the Themes app may have their own sound circuits that overlap standard settings. Changing the theme to a standard one or removing the custom audio package can solve the problem.

Setting up the "Do Not Disturb" mode for night charging

If your primary goal is to remove the charging sound overnight so you don't wake up from every random tap of the cable, then Do Not Disturb is the most effective tool. Unlike simple silent mode, it allows you to create flexible rules and exceptions.

To set up, go to Settings → Sound and vibration → Do not disturb. Here you can set a schedule, for example, from 23:00 to 07:00. In this time interval, the phone will automatically ignore all incoming sounds, including the system squeak when connecting the charger.

It is important to set exceptions correctly so you don't miss a really important call. In the Do Not Disturb mode menu, find Allow Calls and select Only Favourites or None. Also make sure that Repeat Calls is active: If someone calls you twice in 3 minutes, the phone will ring, which can save lives in an emergency.

Newer versions of HyperOS have introduced a feature that allows you to turn on this mode automatically when you set your phone to charge at a certain time, which implements a “charge and forget” scenario, ensuring silence without unnecessary action on your part.

Application of third-party applications for sound management

When regular funds are scarce, specialized applications from the Google Play store come to the rescue, allowing you to manage audio profiles in much greater detail than Xiaomi itself allows, such utilities can intercept system events and change the behavior of a smartphone.

One of the most popular solutions is the Sound Assistant app (or its analogues, such as Volume Control), which allows you to create separate volume profiles for different situations. You can create a Charging profile in which the system volume will be set to zero, while the volume of media files will remain the same.

Another approach is to get automatizers like MacroDroid or Tasker, and these applications are If-To. You set the trigger "Power Connected" and "Set system volume to 0." When you turn off the cable, the second rule turns the volume back.

Using third-party software gives you maximum flexibility, but requires care when you first set up. Incorrectly set the script can lead to the fact that the phone will be left without sound at all, and you will not hear the alarm.

Use of engineering menus and hidden settings

For advanced users who aren’t afraid to experiment, there is access to hidden system settings through an engineering menu, which allows you to turn off system sounds at a deeper level, where the usual setting sliders do not get.

To get into the engineering menu, open the Phone app and dial ##6484## (code may vary depending on model and region). In the CIT or Engineering Mode menu you will find the audio-related section (Audio or Sound) and you can find settings for different scenarios, including System.

Path to the menu (example):


CIT -> Audio -> Advanced -> System -> Volume

Inside this menu, you can find the system notification setting and reduce or disable it. However, changing the settings in the engineering menu can lead to unstable system operation, so you should make a full backup of the data before any action.

It is worth noting that on global firmware versions, these codes are often blocked by the manufacturer for security reasons, in which case this method will not work without unlocking the bootloader and obtaining superuser rights.

Creating Automation Through Scenarios

Instead of installing heavy applications, you can take advantage of the built-in automation capabilities that are available in your version of the software, or use light scripts, and the essence of the method is to create a chain of actions that are performed automatically when a certain condition occurs.

Xiaomi's HyperOS-enabled smartphones have a "Scenarios" feature (or "Smart Scenarios" in the Security app). You can create a new script with the condition "When connecting the charger." As an action, select "Enable 'Do Not Disturb'" or "Establish a sound profile 'Without sound'".

This solution is native and does not require the installation of additional software, which has a positive effect on the autonomy of operation and data security. The algorithm works even in the background and does not waste the processor resources.

• 🤖 Trigger: Connecting the cable USB wirelessly.
• 🔇 Action: Switching the sound profile to silence mode.
• ⏰ Reverse: When you turn off charging, the sound profile returns to its original state.

💡

If the built-in script builder doesn’t allow you to choose an action with sound, try using the Xiao AI voice assistant to create a complex command.

This approach is especially convenient for those who use wireless charging. The phone can be placed on the panel, and it automatically goes into quiet mode, without making unnecessary noises that could wake up the household.

Frequently Asked Questions (FAQ)