Xiaomi smartphones are famous for their excellent value for money, but owners of budget models of the Redmi or Poco series often face insufficient loud sound. Quiet conversation in a noisy place or a barely audible call can be a serious problem. Fortunately, the software shell of MIUI and HyperOS provides ample opportunities for customizing audio streams beyond the standard restrictions.
In this article, we will discuss all available methods of increasing volume, from simple interface settings to the use of hidden engineering menus, learn how to safely bypass system limitations and make the sound on your device as powerful as possible.
First of all, you should rule out the trivial reasons for quiet sound. Make sure that the speaker is not covered with a protective case, and there is no dust or pile accumulated in the grid of the device. Sometimes the problem lies in a software conflict or incorrect operation of the Bluetooth headset. If there are no mechanical obstacles, then we move to the software configuration of the system.
Basic configuration of sound profiles in MIUI
The first step to improving audio perception is to fine-tune standard profiles. MIUI-based Android splits volume into several independent channels: media, bells, alarms and notifications. Often users forget that the volume slider in the side menu regulates the current flow.
To fine tune, you need to go to Settings → Sound and Vibration. You can adjust each channel in detail here. You should pay special attention to the section "Sound Quality and Effects", where important parameters of the equalizer are hidden. Enabling the "Mi Sound Enhancer" function can significantly enrich the sound by adding missing frequencies.
Inside the equalizer menu, select Bright or Bass profiles to increase the perceived volume. Also check Dolby Atmos settings if your smartphone model supports this technology. Activating this mode not only improves the stereo effect, but also equalizes the volume of quiet tracks.
- 🔊 Go to Settings. → Sound and vibration to access the full menu.
- 🎚️ Adjust the volume sliders for each type of sound separately.
- 🎵 Turn on Dolby Atmos for surround sound and volume alignment.
- ⚡ Use the “Bright” profile in the equalizer to enhance high frequencies.
Remember that some apps, like video players or instant messengers, have their own volume settings that can override the system. Check the settings inside YouTube, Telegram or your music player. Sometimes it's enough to switch the audio output codec in the settings of the application itself for a better result.
Using the Engineering Menu to Enhance the Speakers
The most effective way to turn up the volume is to access an engineering menu hidden from the average user, which allows you to change the levels of sound gain at the hardware level, and it uses a special code that runs on most MediaTek processors and some Snapdragon processors.
To enter the menu, open the Phone app and dial the combination ##3646633##. If the code didn't work, try ##4636## or ##8375##. Once you log in to the Engineering Mode interface, you need to find the Hardware Testing or Audio tab. Be extremely careful: changing unknown parameters can cause sound distortion or speaker breakage.
⚠️ Note: Do not change the values in non-audio partitions, especially in radio modules and networking, which may result in loss of signal or inability to make calls.
In Audio, select Normal Mode (normal mode) or Headset (headphones) and then select a type of sound, such as Media (multimedia) or Ring (calling), and you will see a Level table, which is usually level 6. Increase the Digital Gain or Max Vol setting gradually, checking the result after each change.
☑️ Check before entering the engineering menu
When you make changes, make sure you press the Set button to save the settings. If the sound starts to wheez or crack, immediately return the values back. Digital amplification has a limit, and overcapacity of the speaker will lead to overloading. The optimal is an increase of 10-15% from the factory values.
Third-party applications to increase volume
If you're too scared or too complicated to tinker with the engineering menu, specialized applications from the Google Play Store will come to the rescue, and they act as software amplifiers, raising the signal level before sending it to the DAC (digital-to-analog converter), Popular solutions are Volume Booster GOODEV, Super Volume Booster and analogues.
The way these programs work is simple: they intercept the audio stream and apply compression and amplification algorithms to it. However, it is worth noting that the software amplification always causes distortions. The sound can become flatter or start wheezing at maximum values. It is recommended not to put the boost above 20-30% to preserve the audio quality and health of the speakers.
Some applications require special permissions through ADB or root rights for deep integration. Without root rights, the functionality can only be limited to amplifying media, leaving the volume of calls unchanged. Read reviews carefully before installing, as many boosters are oversaturated with advertising.
- 📲 Download the proven booster app from the official store.
- 🚫 Don’t set maximum gain immediately, move gradually.
- 🔋 Watch your battery consumption as active amplification consumes energy.
- 🎧 Test the sound in headphones separately from the smartphone speakers.
If the phone speaker is physically small or damaged, software amplification will only highlight the defects, and use tools like a temporary solution to watch videos in noisy vehicles, but don't keep them on all the time.
Activation of hidden functions through ADB-team
For advanced users who want to gain full control of the system without obtaining root rights, the tool is ideal for them. ADB (Android Debug Bridge. This method allows you to change system settings hidden in the normal interface. You'll need a computer, USB-cable and installed drivers for your smartphone.
First, activate Developer Mode. Go to Settings → About Phone and click on MIUI seven times. Then, in the Developer Menu, turn on USB Debugging. Connect your phone to your PC and open the command prompt in the ADB tool folder.
adb shell settings put global volume_steps_speaker 15This command increases the number of volume control steps for speakers, allowing you to adjust the sound level more accurately, and you can also try a command to unlock regional sound constraints that are often found in global firmware.
| ADB Team Team | Description of action | Risk of error |
|---|---|---|
| volume_steps_speaker | Increases the number of steps of volume | Low. |
| audio_safe_volume_state | Turns off the loud noise warning | Medium. |
| persist.vendor.audio.volume.disable | Attempt to disable limits (depending on model) | High-pitched |
Using ADB requires accuracy. One incorrect command can cause an audio service to crash, which will require a phone reset. Always check the command syntax and make sure your device is compatible with the selected settings.
Cleaning and maintenance of speakers
Often, the reason for the quiet sound is trivial — pollution of the speaker grid, and during operation, dust, skin fat and pile accumulate in the holes from pockets that physically block the output of the sound wave, and regular cleaning can return the dynamics to 30% of its original volume.
To clean, use a soft toothbrush or a dry antistatic brush. Walk carefully through the speaker grid, sweeping the contaminants outwards. You can use a sticky tape (scotch) with adhesive side to the holes to pull out the dust. It is strictly forbidden to use sharp objects that can damage the membrane.
Can I wet the speaker?
There's also a software method of cleaning with high-frequency sound waves, and you can find special videos or apps online that generate a low-frequency hum that pushes dust out of the speakers, and turn this video on at full volume for 1-2 minutes, pointing the phone down with the speaker.
Hardware Limitations and Dynamic Replacement
If neither software nor cleaning has helped, you may have experienced physical wear and tear or factory defects. A speaker is a mechanical device that loses its properties over time. A membrane can stretch and a magnet can demagnetize, leading to a quiet and hoarse sound.
Xiaomi’s budget models often feature small monophone speakers that are physically unable to produce powerful sound without distortion, and in such cases, software amplification will only have a short-term effect, and the only radical solution is to replace the module with a better counterpart or original spare part.
When choosing a spare part, pay attention to the resistance (impedance) and power of the speaker. Installation of an item with improper characteristics can overload the audio chip (motherboard).
💡
Before replacing the speaker, try gently tapping your finger on the back cover in the speaker area - sometimes this helps temporarily restore contact with the outgoing membrane.