The problem of a quiet speaker is often an unpleasant surprise for owners of Xiaomi, Redmi and Poco smartphones. Users notice that after another system update or just over time, the sound becomes quieter, and the interlocutor has to ask again or turn on speaker communication, this can be caused by software restrictions, physical contamination of the speaker grid or incorrect settings of the region.
In most cases, you can fix this on your own without going to the service center. There are many software methods that allow you to squeeze the maximum out of the audio codec, as well as simple physical actions that will return the volume to its former volume. It is important to understand that software amplification has its limits, and excessively raising the signal level can lead to distortion or wheezing.
In this article, we’ll look at all the ways you can raise volume, from basic interface settings to Android’s engineering menu. You’ll learn how to properly adjust the equalizer, clean the speaker of dust, and use third-party applications to amplify sound. Follow the instructions carefully so you don’t disrupt your device’s audio system.
Basic sound settings and equalizer
The first thing to start with is to check the standard settings of the system. Often users accidentally reset settings or set quiet profiles. Go to Settings → Sound and vibration and make sure the sliders are twisted to maximum. Also check if no sound or no disturb mode is activated, which can limit the volume of notifications and calls.
Special attention should be paid to the built-in equalizer. The MIUI shell and the new HyperOS have pre-installed profiles that may not be suitable for your hearing or the type of headphones. Try switching to Rock or Pop mode, which often have a more aggressive frequency-raising curve, which subjectively makes the sound louder.
To access the advanced sound settings:
- 🎧 Open the Security app and find the Mi Sound Enhancer section).
- 🔊 Turn on the “Mi Sound Enhancer” function and select the type of headphones or speakers.
- 📢 If you use a headset, activate virtual surround sound for better perception.
Remember that some Bluetooth devices have their own volume control, independent of the smartphone. Make sure that the headphones or headset connected also have volume twisted. Sometimes, dissynchronizing the phone and accessory volume levels leads to a quiet sound.
Cleaning of the dynamic emitter from pollution
Physical locking of the speaker is one of the most common causes of silent sound, and when you use the speaker grid, you get dust, pocket pile, skin fat and small debris, and it creates a traffic jam that keeps the sound wave from coming out, making the voice of the speaker deaf and quiet.
To clean, use a soft toothbrush with dry bristles. Carefully, without much pressure, walk along the speaker grid located at the top of the screen or in the display frame. Movements must be sweeping to remove dust from the depths of the channel. You can also use special sticky tape or "smart dust", but be careful not to leave adhesive marks.
⚠️ Attention! It is strictly forbidden to use sharp objects, such as needles or pins, to pick the speaker's grid, you can damage the membrane or push the dirt even deeper, which will permanently disable the speaker.
If dry cleaning doesn't work, you can use the "sound vibration" method. There are special audio files or online services that reproduce a low-frequency high-intensity hum. Turning on such a track at full volume makes the speaker membrane vibrate strongly, knocking out stuck dust. However, this method requires caution.
How to use sound cleaning safely?
Using an engineering menu to customize the sound
The most effective way to programmatically increase volume is by editing parameters through the Android engineering menu.This hidden interface allows you to manage amplification levels for various use cases, including Headphones, Speaker and Speaker mode.
To enter the engineering menu, open the Phone app and type ##3646633#. If the code doesn't work, your firmware version may be blocking access; in this case, you can use the Engineer Mode MTK app from the Google Play store. After logging in, go to the Hardware Testing Audio → Audio → Audio Debugging tab.
Inside the menu, you'll see a list of modes (Type). To set the volume in a normal conversation, select:
- 📞 Normal Mode – Normal mode of conversation in the ear.
- 🔊 Loud Speaker Mode – Handheld mode.
- 🎧 Headset Mode - mode of operation with a wired headset.
If you select the desired mode (e.g. Normal Mode), go to Level. This is the level from 0 to 6. Level 0 usually corresponds to the minimum volume, and Level 6 is the maximum. Value field (or Max Vol) you need to enter the numerical gain. Standard values range from 120 to 140 for different models.
When you change your value, be sure to press the Set button to save the setting. Repeat the procedure for all levels (Level 0-6), gradually increasing the values. Do not set maximum values at all levels at once, otherwise the sound may become unbearably loud or there will be a strong hiss.
☑️ Check before changing the engineering settings
Regional change and additional functions
One of the interesting features of Xiaomi smartphones is the dependence of the maximum volume on the selected region, which is due to the laws of different countries: in some countries (for example, in the European Union) there are strict restrictions on the level of sound pressure to protect the hearing of users.
If you live in a region where such restrictions do not apply, or just want to bypass the software limit, try changing the region in the settings. Go to Settings → Additional settings → Region and select a non-EU country, such as “USA”, “India” or “Nepal”. After changing the region, the phone will reload the audio profile, and the volume can increase significantly.
Also worth checking is the "Absolute Volume" feature in the developer menu. To get there, press the build number 7 times in the About Phone section. Then, in the Developer Menu, find "Opact Absolute Volume." Experiment with this switch: in one position, it can synchronize the volume of your phone and Bluetooth device, in another, unlock additional levels.
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After changing the region, be sure to fully restart your smartphone, rather than just turn off and turn on the screen. Only a full reboot applies new audio configurations of the system.
Third-party applications for sound amplification
If there's not enough built-in tools, Google Play apps come to the rescue, and they work like a software amplifier, boosting the digital signal before it's sent to the DAC. GOODEV, Bass Booster and Equalizer & Bass Booster.
These programs require caution, can put additional strain on the processor and battery, and can overheat the audio chip, and when significantly amplified (over 20-30%), digital distortions, crackling and wheezing often appear, which can damage the speaker.
The principle of operation of most boosters is the same:
- Install the application and provide the necessary permissions.
- Start the boost by moving the slider.
- Check the sound in a real conversation.
- Do not exceed the 40-50% gain safety threshold.
They only amplify the incoming digital signal, and if the speaker is initially quiet because of hardware constraints or defects, software crutches will not solve the problem in a fundamental way.
Comparison of volume-raising techniques
To make it easier for you to choose the right method, we have prepared a comparison table that will help you assess the risks and effectiveness of each method for your specific situation.
| Method | Efficiency | Risk of damage | Difficulty |
|---|---|---|---|
| Cleaning the dynamics | High (if clogged) | Low. | Low. |
| Change of region | Medium | Absent. | Low. |
| Engineering menu | Very high. | Medium (programme) | Tall. |
| Third-party annexes | Medium/High | High (for speaker) | Low. |
As you can see from the table, cleaning the speaker is the safest and often the most effective first step. The engineering menu gives the best result, but requires care. The booster apps should be used as a temporary solution.
Possible hardware problems
If none of the software methods worked, and the sound remains quiet even at maximum volume after cleaning, a hardware malfunction is likely. Over time, the speaker membrane may degrade, lose elasticity or partially unstuck from the body, which reduces the efficiency of sound transmission.
It can also be caused by oxidation of the contacts of the speaker plume, especially if the phone has come into contact with moisture, in which case even a complete flashing of the device will not work, requiring disassembly of the smartphone, checking contacts and possibly replacing the speaker module.
⚠️ Warning! Self-disassembly of your smartphone can lead to loss of warranty.If your device is warranty service, contact your Xiaomi Authorized Service Center for diagnostics.
You can diagnose the problem by plugging in an external Bluetooth headset, and if it's loud and clear, and if it's quiet through a conversational speaker, the problem is exactly with the speaker or connecting it to the board.
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If the external headset is working normally and the built-in speaker is quiet even after cleaning and settings, this is a sign of a physical malfunction of the speaker.