How to increase the volume of the speaker on Xiaomi: the complete guide

The problem of quiet sound on Xiaomi, Redmi and Poco smartphones is often an unpleasant surprise, especially if you are used to louder devices. Even flagship models sometimes do not boast enough speaker power, which causes discomfort when watching videos in noisy places or while calling. Fortunately, the Android operating system in conjunction with the shell of MIUI or HyperOS provides a variety of tools for fine-tuning audio.

Before we go to radical methods, it is worth checking the basic settings that are often ignored by users. In some cases, low volume is caused by software restrictions turned on to protect hearing, or physical obstacles in the form of dust. The maximum amplification of sound in the engineering menu can be as high as 25-30% above the standard system values. However, do not immediately climb into the hidden menus, start with safe and proven methods available to every smartphone owner.

There are several levels of interference in the audio system, from simple cleaning of speakers to the use of engineering codes. It is important to understand that software volume increases always have their limits due to the physical characteristics of the speaker. Excessive signal amplification can lead to wheezing or even burnout of the component, so you need to act carefully and consistently.

Basic sound settings and equalizer

The first step is always to review the standard audio settings, because often the problem is there. The MIUI shell and the new HyperOS have a powerful built-in equalizer that allows you not only to change the timbre, but also to increase the overall volume. To access them, go to the Settings menu → Sound and vibration → Sound Effects. Here you will find the Volume slider, which sometimes defaults to the maximum, and the Dolby Atmos settings.

Dolby Atmos technology on Xiaomi smartphones often runs in the background or requires activation in certain profiles. If you turn on this mode and select the profile of "Auto" or "Video", the sound can become much richer and louder. However, it is worth considering that activating all effects can drain the battery faster, so in power saving mode these functions can be turned off automatically.

The integrated graphics equalizer is another powerful tool. Standard presets like Rock or Pop already have amplified frequencies, but you can create your own profile. Take all the frequency sliders up, but watch the congestion indicator. If it lights up in red, you cause distortion, and you need to lower the level a little. The ideal balance is when the sound is loud but clear, without sand and wheezing at high frequencies.

Don't forget to set up specific apps. YouTube, Spotify, or VLC can have their own volume controls that override the system settings, and check if the volume is limited or at least twisted inside the player.

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Use the "Monoaudio" function in the "Special Opportunities" section, if one speaker sounds quieter than the other, this will help to align the channel balance.

Using an engineering menu to amplify sound

The most effective way to turn up the volume is to use the engineering menu, a hidden section for testing equipment, accessed through a special set of commands in the Phone app. For most Xiaomi devices, the code ##3646633# is suitable. Once you enter this combination, the smartphone will automatically go to the Engineer Mode menu.

In the interface that opens, you have to go to the Hardware Testing tab, then select Audio → Audio Debug. Here you will see a list of modes: Normal Mode (normal mode), Headset Mode (headsets), and others. Normal Mode is the one that interests us, because it is responsible for the volume of the main speaker during conversation and in speakerphone.

Inside, select the Speech or Media type of sound (depending on whether you want to amplify your voice or your music). Then you choose the level of volume (Level), usually from 0 to maximum (e.g. 15), switching between levels, you can set the Max Vol value (maximum volume), the standard value is often 135-140, it can be raised to 160 or even 200.

⚠️ Note: Do not set the Max Vol value above 200 units. This can lead to instant burnout of the speaker or the appearance of constant wheezing, which cannot be eliminated by software.

After changing the settings, be sure to press the Set button to save the settings. Without this step, all changes will be reset when you reboot or exit the menu. It is also recommended that after setting up, you reboot the device so that the audio drivers are initialized with the new parameters.

Third-party applications for sound amplification

If you think it's too complicated or risky to mess with the engineering menu, Google Play apps will come to the rescue. There are many utilities that work as software amplifiers to bypass Android's system limitations. One of the most popular and proven solutions is the Volume Booster GOODEV app.

The way these applications work is simple: they create a software layer on top of the system mixer and amplify the incoming audio stream before it is sent to the speaker. Once you install the application, you will be offered a Boost gain slider, starting with minimum values (10-20%), gradually increasing them to a comfortable level.

Another powerful tool is the VLC for Android or Poweramp player. They have their own built-in amplifiers that allow you to raise the volume above 100% (up to 200% and even 500%). This is especially true for watching movies or listening to music when the system volume is not enough. In the player settings, find the Audio section and activate the option “Normalization” or “Amprovement”.

It's worth remembering that using third-party amplifiers puts additional strain on the processor. On older or budget smartphone models, this can lead to micro-sound delays or increased body heat. If you notice that the phone is starting to warm, lower the boost level or close the app.

Secret codes for calibrating sound

In addition to the classic engineering menu, there are special USSD-codes and combinations for quick calibration, which are less dangerous, because they often just reset the audio driver settings or switch modes. For example, code ##6484## opens the menu. CIT (Customer Integration Test, where you can test the speakers.

In the CIT menu, select Speaker or Receiver. Test sound will run. If the speaker wheezes or sounds quiet even at maximum, this may indicate a software driver failure. Some versions of MIUI have a "Calibrate" button or the ability to reset the sound settings to factory, which sometimes solves the problem of quiet sound after updates.

Also useful is the code ##2846579## that opens the ProjectMenu menu. Go to Audio → Audio Debug. Here the functionality is similar to the engineering menu, but the interface may differ depending on the processor (Snapdragon or MediaTek).

It’s important to understand that not all codes work on all firmware versions. Xiaomi developers periodically shut down some diagnostic features in global shell versions for security reasons. If the code doesn’t work (just resets the call), then your version of Android or MIUI has blocked this access.

Cleaning and maintenance of speakers

Often the reason for the quiet sound is the corny pollution. The speaker net is a magnet for dust, pile and skin fat. Over time, the holes get clogged, and the sound becomes deaf and quiet. Visually, it may not even be noticeable, so regular cleaning is mandatory.

To clean, use a soft toothbrush with dry bristles. Carefully, without much pressure, walk around the speaker grid in circular motions. This will help knock out the stuck dust. You can also use a special sticky tape (blue tack) or tape, putting it sticky side to the net to pull out the contamination.

⚠️ Note: It is strictly forbidden to use sharp objects (needles, pins) to clean the speakers. You can damage the speaker membrane or puncturing the moisture shield film, which will lead to irreversible breakage.

There's a software method of cleaning, which is using high-frequency sound waves. You can find YouTube videos on "Speaker Cleaner Sound." Run this video at maximum volume and put the phone down with the speaker. Vibration from the sound wave will help to knock dust out of the back of the grid. Repeat the procedure several times for different speakers (main and conversational).

If the sound hasn't improved after cleaning, there may be a problem with the oxidation of the contacts or the uncoupling of the membrane, which requires physical intervention and repair at the service center, but in 80 percent of cases, careful mechanical cleaning returns the dynamics to their former volume.

Impact of updates and regional settings

Sometimes the volume drops after an operating system update, which may be due to a change in audio drivers or the introduction of new EU regulations, and the European Union has strict maximum volume regulations, and smartphones designed for this region may sound quieter.

Check your device's region in Settings → Additional settings → Region. If you have Germany or Italy, try changing region to Singapore, Indonesia or the United States. This doesn't change the interface language, but it can unlock higher volume limits in the system settings.

You should also pay attention to Bluetooth settings. If you connect your phone to a wireless headset or speaker, make sure that the Settings → Bluetooth → menu (cog next to the device) does not tick the "Absolute Volume" box. Disabling this feature allows you to adjust the volume independently on the phone and on the playback device, which sometimes gives you an increase in level.

Recent versions of HyperOS have introduced Adaptive Sound, which adjusts the equalizer to the shape of the ears (for headphones) or the environment. Try experimenting with these settings, as automatic understatement of loud frequencies can be perceived as a general quietness of sound.

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Changing a region to a less stringent country (such as Singapore) is a safe way to bypass software volume limits without root rights.

Frequently Asked Questions (FAQ)