The problem of quiet sound in wireless headsets is a classic scenario faced by owners of Xiaomi and Redmi smartphones. Often users notice that when connecting high-quality devices, they can be used to create a new model. TWS-Mi True Wireless Earbuds Basic 2 or Redmi Buds. 3 Pro, the volume level is only 30-40% This is because of the dissynchronization of the Android system volume levels and the headset itself.
There are software limitations in MIUI and the new HyperOS that by default block the maximum speaker power to protect the user's hearing, but with special engineering codes and developer settings, you can bypass these limits. It's important to understand that this is not about breaking the speakers, but about software settings.
In this article, we will take a look at all the available methods, from simple settings on the menu to using third-party software, and you will learn how to calibrate the sound correctly to get the most out of your acoustic system without loss of quality and wheezing.
Basic Volume Settings Check on Android
Before you get to the tricky part, you need to rule out the trivial configuration errors. Android often splits the volume of media, calls and alarms into independent sliders. Make sure you adjust Media Volume, because that's what makes music and video playback.
Go to Settings → Sound and Vibration. Not only do you have to unscrew the slider to the point, but you also need to check for active restrictions. Some Xiaomi firmware versions have the default Safe Listening feature enabled, which automatically lowers the signal level over long-term use.
Also worth paying attention to the settings of the application itself, through which you listen to music. Spotify, YouTube Music and Yandex.Music have their own internal equalizers and volume sliders that can block system settings.
- 🔊 Open the swipe control panel from above and make sure the volume slider is raised to maximum.
- 🎚️ In the audio settings, disable the option "Absolute Volume" if it is active, then turn it back on to restart the driver.
- 📱 Reboot your smartphone after connecting headphones to reset the cache of Bluetooth services.
⚠️ Warning: Do not physically clean the speaker grid with sharp objects if the sound is quieter.This may damage the membrane.Use a soft brush or sticky tape.
Use of engineering menu and codes Xiaomi
One of the most effective ways to increase volume is to access a hidden engineering menu. In Xiaomi devices, this section allows you to control the parameters of the audio driver at a low level. CIT-menu.
Inside the menu, you need to find a section related to audio (usually called Audio or Speaker), where you can test speakers and, in some cases, change the settings (gain) for Bluetooth devices.
Another useful code is ##3646633## (not all processors, mostly MediaTek). If your Snapdragon-based smartphone doesn't work, you might have to use the terminal emulator apps to type ADB commands, but that's for advanced users.
What if the code doesn't work?
Remember, the engineering menu is a diagnostic tool, and the main purpose of using it in this context is to check if the speaker is running at full power in test mode, and if the test sound is loud and the system is quiet, the problem is precisely the software limitations of Android.
Configure the developer parameters for Bluetooth
The hidden section for developers contains key settings for managing Bluetooth protocols. To activate it, you need to quickly click 7 times on the build number in the About Phone menu. After the corresponding notification appears, go to Additional → For developers.
Find Disable Absolute Volume. It can be turned off by default. If you turn on this option, the system will stop syncing the volume of the phone and headphones, which will turn the volume on the phone to zero, and on the headphones add it through their own control, summing the levels.
Also in this section, you should pay attention to the Bluetooth Audio Codec. Standard SBC codec often gives quieter and less quality sound compared to AAC or aptX. If your Xiaomi headphones support high-resolution codecs, forced switching to them can improve not only the quality, but also perceived loudness (perceived volume).
☑️ Bluetooth setup
Once you change your codec or volume settings, be sure to reconnect the device. Break the connection in the Bluetooth menu and pair again. Without this step, the new drivers may not apply correctly.
Use of Dolby Atmos and Mi Sound equalizer
Xiaomi prides itself on having pre-installed audio enhancers. In the Settings menu → Sound and Vibration → Sound effects are usually available Dolby Atmos or Mi Sound Enhancer. These technologies not only change the timbre, but can also significantly increase the overall volume by compressing dynamic range.
Turn on Auto or Video mode in Dolby Atmos. These presets often bring the sound to a higher level than Music mode. In addition, the manual equalizer allows you to raise all the sliders of frequencies (low, medium, high) 2-3 dB above zero, creating a gain effect.
However, be careful with the high frequencies. Excessive gain in the 8-16 kHz range can lead to unpleasant hissing and whistles, especially in budget models of headphones. Optimally raise the average frequencies (1-3 kHz), where the main vocals are.
| Equalizer mode | Impact on volume | Recommendation |
|---|---|---|
| Standard. | Basic level | For classical music |
| jazz | Average reinforcement | For vocals and instruments |
| pop | High-strength | To the maximum level |
| Rock. | Boosting bass and top | For dynamic tracks |
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Use third-party equalizer apps like Poweramp Equalizer if you don’t have enough built-in Xiaomi settings. They have more flexible Pre-amp settings.
Third-party sound amplifiers
If there is not enough system tools, applications from the Google Play Store come to the rescue, and the leader in this niche is the Volume Booster GOODEV application, which allows software to amplify the signal above 100%, reaching 200% and even 600% of the standard level.
The way these programs work is simple: they get embedded in the audio stream and increase the amplitude of the signal before being sent to the Bluetooth module. But there's a downside to this method: digital distortion (clipping), the sound gets louder, but there can be porridge and wheezing.
Other popular applications include Bass Booster and Equalizer & Bass Booster, which often have built-in presets for different use cases. When installing such applications, the system may request permission to "Access to Special Features" or "Overlap on Other Windows" - this is necessary for their operation.
⚠️ Note: Do not set the volume booster higher 30-40%. Long listening at extreme volume through software amplification can irrevocably damage the dynamics of Xiaomi headphones.
Your Redmi or Poco smartphone’s battery will run out faster, as the processor has to constantly process the amplified audio stream.
Cleaning and maintenance of headphone speakers
Often the problem of quiet sound is not software, but simple hygiene. TWS-Xiaomi headphones have very small holes that are quickly clogged with earwax and dust. This creates an acoustic cork that muffles the sound.
Use isopropyl alcohol and a cotton swab to clean the cleaner. Gently, without pressing, wipe the net. You can also use a soft toothbrush to remove the contaminants from the pores. Do not use sharp objects like needles to avoid piercing the membrane.
There is a "folk" method: tightly apply the headphone to the working vacuum cleaner (at minimum power) or, conversely, blow into it (with care not to saliva gets inside), a safer option is to use a special sticky mass (cleaning gel) for cleaning electronics.
If the sound became noticeably louder and cleaner after cleaning, then the pollution was the problem, and regular prophylaxis once a month will help to avoid future declines in sound quality.
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Cleaning acoustic meshes regularly is the safest and freest way to return the headphones to their original volume without risking damage to the electronics.