Modern Xiaomi smartphones, powered by MIUI shells or the new HyperOS, offer users a plethora of audible notifications that accompany each action. One feature that often annoys device owners is the loud click that occurs when the screen is unlocked. This sound may not be appropriate in quiet places, meetings or the cinema, creating embarrassing situations.
Fortunately, the developers have provided the flexibility to adjust the audio system, disabling the unlock sound does not require root rights or installing third-party software, but it is enough to navigate the settings menu correctly, which may vary depending on the firmware version and region.
In this article, we will discuss all possible ways to turn off system sounds, we will look at the standard menu paths, the features of the Do Not Disturb and No Sound modes, and also touch on the nuances associated with the design topic. Complete disabling of system sounds is possible only with activated standard theme design, as third-party themes often ignore global audio settings.
The main sound settings in the Android system
The first and most obvious place to look is the standard audio settings menu, and in most cases, this is where the system effects switch is located, but the location of this slider can vary depending on how deeply the manufacturer has changed the Android interface.
To start, you need to go to Settings and select Sound and Vibration, and in the menu that opens, you'll see volume sliders for media, calls and alarms, and we're also interested in a section that's often hidden in additional settings or marked as "Advanced."
So what's important here is to look at the system sound switch, or system sounds, and if you turn it off, not only will the unlock sounds disappear, but the keyboard clicks will also disappear, and the audio response will disappear when dialing, and it's a complete solution for those who want maximum silence from the interface.
⚠️ Warning: Disabling system sounds in this menu may affect the performance of audible signals in some applications that use the system channel to notify errors or terminate operations.
In some versions of firmware, settings can be spread out into different tabs. If you don't find the right switch right away, try searching by settings. Type "system" or "effects" into the search bar, and the system will prompt you to go to the desired menu.
Disconnection through the modes “Do not disturb” and “No sound”
Often users do not need to completely remove the unlock sound from the system, but only temporarily silence the device, for this purpose, Xiaomi and Redmi smartphones have special modes of operation that are activated through the control panel or side button.
No Sound mode completely shuts down all audio outputs except the alarm clock, and when activated (usually through a volume swing to the full stop), the unlock sound is also blocked, but this method is not always convenient, since you can miss an important call or message if you do not set exceptions.
A more flexible tool is Do Not Disturb mode, which allows you to block notification sounds and system effects, but still allows you to receive calls from selected contacts. To set this mode, go to Settings → Sound and vibration → Do Not Disturb.
Inside this menu, you can set an activation schedule or manually turn on the mode, and an important advantage is that you can customize unlock behavior, and some versions of MIUI allow you to choose whether system sounds will be ignored when that mode is active.
☑️ Checking the settings of the silence modes
It’s worth noting that new versions of the HyperOS shell have reworked the logic of these modes for more intuitiveness, and now when you switch modes on the lock screen or in the notification curtain, a pop-up window appears with a brief description of what exactly will be disabled.
The impact of design themes on system sounds
One of the most common reasons why users can not find the setting of the unlock sound is the use of third-party themes. the MIUI shell and theme store Themes allow you to radically change the visual style of the smartphone, but often with the graphics changes and sound.
Third-party themes may contain their own audio files for system events that take precedence over standard settings. Even if the System Sounds slider is turned off in the audio settings menu, the theme can forcely play its sound when unlocked, to preserve the integrity of the design concept.
To check if the theme affects the sound, follow the following steps:
- 🎨 Open the Themes app on the main screen.
- 👤 Go to the user profile (the person icon in the lower right corner).
- 📂 Select the Topics item in my shopping/download list.
- 🔄 Apply a standard theme (usually called “Classic”, “Default” or “No Theme»).
Once you've applied the standard design, go back to the sound settings, and there's a high probability that the system sound switch will be active and will work correctly, and if the sound is gone after you change the theme, then the problem was the conflict of the audio files.
⚠️ Warning: When you change the theme, all audio settings can be reset to the values set by the theme author. Be prepared to reset the alarm clock and media volume after applying the new design.
If you don't want to give up a beautiful theme, but the sound annoys you, try to find modifications marked "Silent" or "No Sound" in the theme store. Authors often post versions of popular themes from which all audio effects have been removed.
Set up notification and lock sounds
It's important to distinguish between the unlock sound and the locking sound. These are two different Android events. The locking sound is heard when the screen goes out or you manually lock the device with a button. The unlock sound is when you successfully enter a password or use a fingerprint scanner.
In some regions and firmware versions, these settings are separated. To manage them in detail, go to Settings → Sound and Vibration → Additional. There may be a separate item on the screen lock sound, which will not affect the unlock sound, and vice versa.
Also worth checking is the lock screen settings. Go to Settings → Lock screen. This section adjusts not only the look but also the behavior when activated. Some features, such as Gestures or Double Standing to Wake up, may have their own audible signals that are confused with the main unlock sound.
Hidden settings through the engineering menu
For users who want to leave the lock sound but remove the unlock sound, the situation can be more complicated. In the standard MIUI interface, these parameters are often combined into one System Sounds switch, and can only be separated by third-party applications or system modifications, which requires more technical knowledge.
Solving problems with spontaneous sound switching on
Sometimes users are faced with a situation where the unlock sound turns on on on itself, even if it was turned off, this can be due to a software failure or application conflict, and the first step in this situation should be to restart the device.
If the reboot didn't work, check the list of newly installed apps. Some programs, especially those that control the lock screen, memory clinch, or antiviruses, may have access to system audio settings. Try removing suspicious apps and checking smartphone behavior.
Also, the cause may be damage to system files after a failed update, in which case it will help to reset the settings to the factory, but before that, be sure to back up the data. The way to reset: Settings → About the phone → Resetting → Erase all data.
| Problem. | Possible cause | Decision-making |
|---|---|---|
| The sound doesn't turn off with a slider. | A third-party theme is active | Returning the standard theme of design |
| The sound appears after the update | Resetting system settings | Turn off System Sounds again |
| No sound menu. | Simple interface mode | Disable "Simple Mode" in the settings |
| The sound is only available in some applications. | Settings within applications | Check the sound settings in a specific application |
💡
If the unlock sound is missing along with all the other sounds, check if the headset is connected via Bluetooth. The smartphone can direct system sounds to an external device that is currently out of reach.
In rare cases, the problem may lie in mechanically sticking the volume button. If the volume button is slightly clamped, the system may perceive this as a command to turn on the sound. Wipe the side of the smartphone and check the case for pressure on the buttons.
Features of work in the mode “Simple mode”
Xiaomi and Redmi smartphones often activate what is called “Simple Mode” (or “Mode for the elderly”), which simplifies the interface, makes the icons larger and minimizes the number of settings, and in this state, the audio menu may look different or be hidden.
If you are in simple mode, the standard Settings → Sound and vibration path can lead to a stripped-down page where there is no system sound switch. To access the full menu, you must first exit the simple mode.
To do this, look for the Settings icon on your desktop (it will be large) or use the Mode Switch widget. Once you return to standard mode, you will be able to access all the settings described above, this is especially true if you use a smartphone by different family members.
💡
Simple Interface mode restricts access to advanced audio settings, and you need to use standard operating mode to fully control the audio settings.
After leaving the simple mode, it is recommended to check the sound settings immediately, so when switching modes, some parameters can be reset to default values.