Owners of Xiaomi, Redmi and POCO smartphones often face situations where media stops playing audio or the volume becomes barely audible, which can be caused by accidental profile switching, software failure of the MIUI or HyperOS shell, and physical contamination of speakers, and in most cases, the problem is solved in a few minutes without contacting the service center.
In this article, we will explore all possible ways to activate audio output, from the banal check of volume sliders to deep system settings, you will learn how to manage audio profiles, eliminate application conflict and adjust the equalizer for maximum playback quality.
Before you get to the tricky methods, make sure the device is not in Do Not Disturb or Silent Mode.These features completely block system sounds and calls, creating the illusion of a speaker breakdown. Check the side of the case - some global models have a physical mode switch.
Basic methods of volume control
The most obvious, but often ignored, way is to use hardware buttons. On the side of your smartphone are volume keys. A short tap causes a slider on the screen that adjusts the volume of media (video, music, games) by default. If you're on your desktop, these same buttons can adjust the volume of the call.
To adjust in detail, press the volume button and then tap the three-point icon or gear that appears next to the slider, which will open an extended menu where you can independently configure levels for:
- 🔊 Media is the main level for YouTube, players and browsers.
- 🔔 Call – the volume of incoming calls.
- 🔔 Notifications – the sounds of messages from messengers and system services.
- 🔔 An alarm clock is a critical parameter that should be the maximum.
It's important to understand the difference between these channels. Often users turn up the volume with buttons while watching a video, but forget that when they call, the level can be set to zero separately. Synchronizing volume in Bluetooth settings sometimes helps to combine these channels when you connect headsets.
Configuring sound profiles and modes
Xiaomi’s shell offers a flexible profile system to tailor the device to a specific situation. Switching between them can completely turn off the sound, so checking your current status is the first step of diagnosis. Go to Settings → Sound and vibration to see your current profile.
There are three main modes available in this section: Sound, No Sound, and Do Not Disturb. Do Not Disturb is the most insidious mode, as it can skip calls from selected contacts but block all other notifications, creating confusion. Modern versions of MIUI 14 and HyperOS have these modes under the notification curtain.
📊 What sound mode do you use most often?
Sound only (maximum volume): Silent mode (vibration only): Do not disturb (important calls only): Automatic switching on schedule
Special attention should be paid to the Pocket Mode feature, which is designed to prevent accidental taps in your pocket, but sometimes it works incorrectly, blocking the sound when the sensor approaches. If the sound disappears when you pick up the phone, try turning this option off in the "Additional settings" section.
⚠️ Warning: Turning on Do Not Disturb mode with the Total Silence setting can hide important system warnings about battery discharge or errors SIM-map.
Advanced sound settings and equalizer
For users who are demanding audio quality, Xiaomi offers built-in signal processing tools. The Settings menu → Sound and Vibration → Sound Effects (or Headphones and Sound Effects) hides a powerful equalizer. Here you can choose (preset) for different genres of music or create your own profile.
Mi Sound Enhancer automatically adjusts frequencies depending on the headphones connected. The algorithm analyzes the headset's impedance and frequency response to find the optimal balance. However, for built-in speakers, this feature is sometimes better off, as it can add distortion at maximum volume.
Secret codes for the speaker test
You can run a speaker test in the engineering menu. Dial ##6484##, select Speaker or Receiver and follow the instructions. This will help determine if the hardware is working correctly. This section also includes setting "Absolute Volume." If you use Bluetooth headphones and the sound is too quiet even at maximum, try to switch this switch. It synchronizes the volume slider of the phone and headset, which often solves the problem of quiet sound in the application, sometimes the problem of silent sound in the application, the problem of the video, sometimes the problem of the browser is spreading on the network, for example, the user base, or the problem of the social network. If the video is played without sound, although the application interface sounds normal, try changing the output format in the player settings. In the standard Xiaomi video player, this is done through Settings. → Decoding, where you should choose "hardware" or "software" decoding. ☑️ Diagnostics of sound in applications Check volume inside the application itself:Relaunch the application completely (close from memory): Clear the application cache in settings:Check the permissions to access the microphone and audio: 0 / 1 It's worth mentioning the Dolby Atmos feature, which is present in flagship models. It creates a surround effect, but it can reduce the overall volume of the stereo pair. If you lack the power of the speakers, turn off Dolby Atmos in the audio effects section. Table: Comparison of sound profiles To better navigate the operating modes of your Xiaomi Redmi or POCO, See the table below, which will help you understand what notifications will come in different use cases. ✅ There is. ✅ There is. ✅ There is. ✅ There's No Sound ❌ Vibration. ❌ Vibration. ✅ There is. ✅ There's no trouble. ⚠️ Only the elect. ❌ Block. ✅ There is. ✅ There's total silence. ❌ Block. ❌ Block. ✅ There is. ✅ As you can see from the table, even in the most stringent modes, multimedia sound (video, music) is usually available. If the video is silent in No Sound mode, then the problem is deeper than system settings. The physical condition of the speakers directly affects the volume. The mesh of the speaker is often clogged with dust and pile, which reduces the output of sound on the speaker. 30-40%. Use a soft dry toothbrush or a special sticky tape to clean your mouth. Never use sharp objects or liquid to clean your speakers, this will cause permanent damage to the membrane. → Advanced settings → Special facilities → Hearing) has a Mono audio function. If you have hearing problems in one ear or have a mono headset connected, enabling this option will combine left and right channels, making the sound clearer. ⚠️ Attention: Using third-party amplifiers (Volume Booster) can overload speakers and quickly fail. Use built-in amplification. Also check if the "Color Up in Your Pocket" feature is activated (if your firmware version has one), sometimes the proximity sensor is contaminated and the phone thinks it's in your pocket, artificially lowering the volume. If the software methods did not help, there may have been a malfunction in the work of the audio drivers of the system. The first step should be to update the system to the latest available version. → The phone. → Version. MIUI/HyperOS And check for updates, and in extreme cases, you can reset all settings without deleting personal data, and that will bring system settings, including sound profiles and equalizer, back to factory values. → The phone. → Resetting settings → Erase all data (be careful, this will delete files, it is better to make a backup copy). 💡Before resetting your settings, take a picture of the current equalizer settings so that you quickly restore your sound profile after returning to factory settings. If even after a complete reset and flashing, the sound is absent or wheezes on all modes, there is a high probability of hardware malfunction. It could be a flushing plume speaker, oxidation of contacts after moisture or failure of the audio codec on the motherboard. Why does sound only appear in headphones and the speaker is silent? This is a classic sign of "sticking" of the headphone sensor in the 3.5 mm connector (if any) or in the port. USB-C. It could have left a pile or oxidized contacts, which makes the phone think the headset is connected. Try cleaning the connector carefully, or plugging in and out the headphones several times. How do you turn on the sound for one particular application? MIUI There is no direct function "Allow sound only for...", but you can use the "Do not disturb" mode with exceptions. Go to the Do Not Disturb mode settings, select Exclusions and add the desired app if the system allows, or just make sure that the Sound profile for this app does not have restrictions in the Notifications section. Xiaomi phone emits an audible signal when charging how to remove it? The charging connection sound is system. To turn it off, you either need to switch the phone to silent mode before connecting, or use third-party applications to manage sound profiles (for example, Tasker), which will change the profile when connecting power. In the standard MIUI settings, there is no separate charger.