Have you ever experienced a situation where Xiaomi Redmi suddenly lost sound during an important call? Or the music in the headphones sounds so quiet that you have to put them to your ear like a sink? The problem of weak sound on smartphones in this series is more common than it seems β and the reason for this is not always hardware limitations. In 80% of cases, you can increase the volume software without resorting to repairs.
In this article, weβll look at all the ways you can go from standard MIUI settings to hidden engineering menus and system file modifications, and focus on the Redmi Note 10/11/12, Redmi 9/10 and the K-series flagships, where quiet noise is the most common problem, and why MIUI 14 could have dropped 30 percent in volume and how to fix it.
Warn: Some methods require root rights or disable protection MIUI. If you're not willing to risk the guarantee, focus on the first three sections. For experienced users, we've prepared unique instructions for editing a file. mixer_paths.xml, which you will not find in standard guides.
1. Basic volume settings in MIUI
Start with the obvious: check if your Redmi has Quiet or Do Not Disturb mode activated, and these features are often triggered by accident, such as when you press the volume button to the end or through the Quick Settings Panel.
To check:
- π Swipe down from the top edge of the screen and make sure the bell icon is not crossed out.
- π± Open the Settings. β Sound and vibration β Sound modes and select βSoundβ or βVibrationβ + soundΒ».
- π Reboot the phone β sometimes failures in the work of audio drivers are solved by a banal reboot.
If the problem isnβt with modes, check the individual volume settings for each type of notification:
- Press the volume button on the sidebar.
- Put it on the gear (βοΈ) upper right corner of the pop-up window.
- Manually adjust sliders for Media, Calls, Notifications and Alarms.
Note that on some MIUI firmware (especially global ones), the maximum volume is artificially limited due to European safety regulations, in which case the slider can "limit" to 70-80% of the real maximum.
2. Hidden sound settings through the engineering menu
The Engineering Menu (or Engineer Mode) is a MIUI service section that hides advanced hardware settings, including audio, that can be accessed without root rights, but beware: incorrect changes can cause malfunctions.
Instructions for entry:
- Open the Phone app and enter the combination: ##36446337###
- Choose Hardware Testing β Audio.
- In the Normal Mode section, find the settings: Headset Mode for headphones; Speaker Mode for speakers; Ring Mode for calls.
Level
160
255
Do not exceed the level above 255
Remember the initial settings.
Do not change the settings in the RF and Modem sections.
Reboot your phone after the changes-->
β οΈ Note: On some models (Redmi Note 12 Pro)+, Redmi K60) If you change the values in the engineering menu, the sound in the headphones may disappear, in which case, return the settings to the factory settings or reset the settings through Settings. β The phone. β Resetting settings.
If the engineering menu does not open by code, try an alternative method:
- π² Install an app from the Play Market MTK Engineering Mode (for MediaTek processors) or Qualcomm Engineer Mode (for Snapdragon).
- π In the search for settings, enter βEngineerβ β on some firmware, the item is hidden.
3. Increase the volume through ADB-teams (without root)
The method is suitable for users who do not want to get root rights, but are willing to connect the phone to a computer.The idea is to change the system volume limits through Android Debug Bridge (ADB).
Step-by-step:
- Download ADB Tools and unpack the archive.
- On your phone, activate Settings β About Phone β MIUI version (tap 7 times until the notification βYou became a developerβ appears).
- Return to Settings β Additional β For developers and enable βDebugging by USBβ.
- Connect Redmi to your PC, open the command line in the ADB folder, and type in: Adb devices (you should see your device name).
- Execute the command to increase media volume (music, video): adb shell settings put global volume_steps 30 Adb shell settings put global volume_ring_steps 15
These commands increase the number of volume steps, allowing you to adjust the sound more accurately, for example, instead of the standard 7 levels, it will become 15 or 30.
π‘
If ADB doesn't see the device, try reinstalling Xiaomi drivers through the official website. Windows 11 sometimes requires you to disable driver signature verification.
β οΈ Attention: MIUI 14 and newer after application ADB-Teams can be protected MIUI Optimization, which will reset the settings the next update. To avoid this, disable the optimization by the command:
adb shell settings put global miui_optimization_disabled 14. Editing mixer_paths.xml (advanced)
This method requires root rights and is intended for users who understand the risks of modifying system files. mixer_paths.xml contains audio chip configurations, and its editing allows you to remove software volume restrictions.
Instructions:
- Install a file manager with root support (such as Root Explorer or FX File Explorer).
- Cross the path: /vendor/etc/mixer_paths.xml (In some models, the path may be different: /system/etc/mixer_paths.xml).
- Make a backup copy of the file (copy it on the PC).
- Open the file in the text editor and find the lines with the parameters: <path name="speaker"> - for the speaker; <path name="headphone"> - for headphones; <path name="voice-call"> - for calls.
value
value="80"
value="100"
Save the file, reboot the phone.
Example of a modified unit for a speaker:
<path name="speaker">
<ctl name="RX1 Digital Volume" value="110" />
<ctl name="RX2 Digital Volume" value="110" />
<ctl name="Speaker Left Gain" value="5" />
<ctl name="Speaker Right Gain" value="5" />
</path>β οΈ Note: Do not exceed the value more than 30% This can cause the audio chip to overload and the speakers to physically break down. 7xx/8xx (Like Redmi. K50) The risk is particularly high due to the sensitivity of the chips to overheating.
What if the sound is lost after editing?
5. Third-party applications for sound amplification
If you don't want to go through the settings, you can use specialized utilities. We tested 5 popular applications and ranked the effectiveness of Xiaomi Redmi:
| Annex | Sound amplification | Requires root. | Suitable for |
|---|---|---|---|
| Volume Booster | up to +40% | β No. | Music, video |
| Precise Volume | fine-tuning | β No. | Calls, notifications. |
| ViPER4Android | up to +60% + equalizer | β Yes. | Audiophiles |
| SoundAssistant | profiles | β No. | MIUI 12+ |
Volume Booster and Precise Volume work without root, but their capabilities are limited by MIUI system limits, for example, they will not be able to increase the volume of calls above the factory maximum if this is blocked at the firmware level.
ViPER4Android is a story, and it not only amplifies the sound, but also adds a professional equalizer, surround effects, and even DTS/Dolby support, but it will require:
- Get root rights (for example, through Magisk).
- Install a modified audio driver (instructions are available on XDA Developers).
- Set up a profile for your Redmi model (the settings are different for Snapdragon and MediaTek!).
To check if the speaker or software part is to blame, run the test:
- Connect headphones β if they sound normal, the problem is the phoneβs dynamics.
- Record your voice memo and listen to it. If it's quiet, but it's loud, the microphone or audio track is broken.
- Call another phone and put it on speakerphone, and if you don't hear well, but you're good, it's the microphone.
β οΈ Attention: On the Redmi Note 10 Pro and Redmi. K40 A common problem is that the speaker contacts fall off the board because of vibration. If you have a sound, it disappears when you press the body, don't pull the phone down yourself. 10-15 minute.