Xiaomi Redmi 5 Plus has proven to be a reliable device with excellent autonomy, but the built-in speaker system often does not satisfy demanding users. Owners often face a situation where the maximum standard volume is not enough to comfortably listen to music in noisy places or watch videos without headphones. This is a common problem in the budget segment, where manufacturers save on components, but software correction methods can significantly improve the situation.
Before we go to radical measures like flashing or physical intervention, we should exhaust all the possibilities of software configuration of the MIUI operating system. Competent configuration of sound drivers and the use of specialized applications can increase the signal level by 30-40% without loss of quality. It is important to understand that digital audio processing plays a key role in this, allowing you to bypass hardware limitations.
In this article, we will discuss in detail the proven ways to amplify audio output, ranging from basic interface settings to working with the MTK Engineering Mode engineering menu. You will learn how to properly configure the equalizer, which applications really work on Snapdragon processors, and what to do categorically not to damage the speaker completely.
Basic setting of the sound profile and equalizer
The first step should always be to deep-tuning the built-in tools of the system. Many users ignore the standard equalizer, relying on presets like Pop or Rock, but manual frequency adjustments give a more predictable result. In the MIUI shell, access to these settings is often hidden or simplified, but basic controls are available to everyone.
Go to Settings → Sound and Vibration → Sound Effects. You need to activate the graphic equalizer. Standard practice is to raise all sliders to the maximum, but this will lead to severe distortion and wheezing. Instead, try the U-shaped curve: slightly lower the average frequencies (about 500 Hz - 1 kHz) and raise the low and high, this will create the illusion of a louder and cleaner sound.
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Use the Automatic Improve feature in your audio settings if it is available in your MIUI version, but manually check the result as the algorithm may overcompress dynamic range.
Pay attention to the DTS Audio feature if it's present in your firmware version. This surround sound algorithm often has its own volume control, independent of the system. Activating Dynamic or Movie mode can add the necessary power to the output signal.
- 🎚️ Open the standard equalizer and select the "User" mode for manual settings.
- 🔊 Enable the option "Mi Sound Enhancer" in the menu of sound effects to expand the stereo.
- 📱 Check if the Hearing Safety mode is activated, which artificially limits the maximum volume.
It’s worth noting that some firmware versions have hidden restrictions by region. If you’ve refashioned the device from the global version to the Chinese version or vice versa, the audio profiles may not work properly. In this case, resetting the audio settings to factory values through the Settings menu → Advanced Settings → Recovery and Reset → Resetting the audio settings (if available) or simply reinstalling the audio plugin can help.
Use of third-party sound amplifiers
When regular funds are scarce, applications from the Google Play Market come to the rescue; the market is full of boosters, but not all of them are effective on Android architecture without root rights. For Redmi 5 Plus, the best solution is applications that work at the level of audio stream, amplifying the signal before sending it to the DAC.
One of the most powerful tools is the Volume Booster GOODEV. This app allows you to increase the volume above the system limit. However, be careful: setting a value above 40-50% can lead to overloading of the speaker. The principle of operation is simple: you launch the application, select the output device (speaker or headphones) and adjust the Boost slider.
Risks of using third-party boosters
Another great option is Precise Volume. This app doesn't just amplify the sound, it lets you create detailed volume profiles for each application separately. You can set 100 volume levels instead of the standard 15, which gives you more flexible control. It's important for Redmi 5 Plus to set up a separate profile for media players, twisting the amplification for this type of content.
If you have a superuser (Root) right, the capabilities are multiplied, and apps like Volume Control+ or Sound Volume Handler can directly control the mixer of the Android kernel, raising the levels (gain) at the hardware level, giving a clean and powerful sound without digital distortion.
- 🚀 Install Volume Booster GOODEV for quick one-time amplification of sound in video or games.
- 🎛️ Use Precise Volume to fine tune 100 volume levels and automate profiles.
- 🔒 To access the system mixer, root rights are required, which opens up access to management (gain).
It's important to remember compatibility. Some boosters conflict with the built-in MIUI equalizer. If the sound is gone or cracked after installing the app, delete the app and restart the device. Always test new tools at low volume, gradually increasing the level.
Engineering menu and deep audio calibration
The most efficient, but also the most risky, way to do this is to use an engineering menu. Since the Redmi 5 Plus is built on a Qualcomm Snapdragon 625 processor, the classic ##3646633# (MTK) menu won't work here. Snapdragon devices use an ADB menu or special codes if they're activated in firmware.
Try entering the code ##6484## or #4636## in the dialer. If the CIT (Customer Information Test) menu opens, look for the Audio or Speaker section. Here you can check the speaker and, in some modified menus, change the gain settings. However, in Xiaomi stock firmware, these items are often blocked for editing.
adb shell
am start -n com.android.engineeringmode/com.android.engineeringmode.EngineeringModeIf the standard codes don't work, you can try running the engineering menu through the ADB command line (requires USB debugging enabled). Enter the command above. If the Engineering Mode application is installed on the system, it will run. In Audio → Audio Tuner, you can find the Playback settings. Look for options related to Speaker Gain or Volume Step.
⚠️ Warning: Changing the values in the engineering menu without understanding their purpose can lead to complete loss of sound or damage to the dynamic head!
In the Audio Tuner menu, you are interested in the Speech or Media tab. Increasing the Digital Gain setting by even a few units (for example, from 20 to 25) can significantly add volume. It is not recommended to exceed values above 30-35, since the digital clipping (distortion) will be heard by the naked ear.
It is worth considering that after resetting or updating the firmware, all changes in the engineering menu will be returned to factory values, so this method is for experienced users who are ready to repeat the procedure after each major system update.
Cleaning and physical maintenance of the speaker
Often the problem with quiet sound is not software, but rather a simple pollution. The Redmi 5 Plus has a lower speaker, whose holes are clogged with dust, pocket pile and skin fat over time, which creates an acoustic cork that silences the sound and reduces its volume.
To clean, use a soft toothbrush with dry bristles. Carefully, without heavy pressure, walk along the speaker grid in circular motions. You can use a sticky tape (scotch) to pull dust from the depths of the holes. It is strictly forbidden to use sharp objects (needles, toothpicks), as they easily damage the membrane or push the dirt deeper.
| Cleaning method | Efficiency | Risk of damage | Recommendation |
|---|---|---|---|
| Dry toothbrush | Tall. | Low. | Recommended for regular care |
| Sticky ribbon | Medium | Low. | Good for surface dust |
| Ultrasonic cleaning | Very high. | Medium. | Only at the service center. |
| Alcohol/liquids | Medium | High-pitched | Not recommended without disassembly |
There is a popular method of blowing sound: turn on a low-frequency hum at maximum volume and hold the speaker to an open window or use a compressor with very low airflow. However, this method is controversial and can drive the dust even deeper if you do not use caution. It is better to use special cleaning gels for electronics that penetrate the grid and pull out dirt.
☑️ Checklist of cleaning the speaker
If after careful cleaning the sound is not improved, perhaps the problem is in the oxidation of contacts plume speaker, in which case will help only disassemble the device and wipe the contacts with alcohol or replace the speaker module itself, which is already hardware repair.
Elimination of software conflicts and resetting of settings
Sometimes a quiet sound is a consequence of a conflict of programs or a malfunction of audio drivers of the Android system. If the volume goes down suddenly or begins to behave inadequately (it changes itself, wheezes at low volume), you should reset the sound settings or, in extreme cases, completely reset the device.
Try entering Safe Mode first. To do this, press the turn off button, and when the menu appears, press and hold the "Stop" option (on some versions of MIUI) or use a combination of buttons when downloading. In Safe Mode, third-party apps are disabled. If this mode has made the sound louder and cleaner, then one of the applications you installed is to blame (often it is various cleaners, antiviruses or sound modes).
If the problem persists, reset the audio settings. In MIUI, this can be done via the Settings menu → Advanced Settings → Recover and Reset → Reset the Wi-Fi, mobile Internet and Bluetooth settings (sometimes resetting network settings, as they are associated with communication modules helps). A more radical method is a complete reset to factory settings (Wipe Data), but this requires a prior backup of all data.
⚠️ Warning: Full Hard Reset will delete all your photos, contacts and apps. Be sure to back up your data to a cloud service or computer before starting the procedure.
Also worth checking is system updates. Xiaomi regularly releases bug fixing patches. Go to Settings → About Phone → System Update. Sometimes the problem of quiet sound is known to developers and fixed in new versions of MIUI.
Hardware Limitations and Dynamic Replacement
Remember, the Xiaomi Redmi 5 Plus is a 2017 device, and over time, the physical components degrade, the speaker membrane can lose elasticity, the magnet can demagnetize, and the contacts can oxidize, and if software and cleaning methods don't work, the speaker's life is probably exhausted.
Replacing the speaker with this model is a relatively simple and inexpensive procedure. The original speaker can be found by the markings on the module itself (usually starting at 1511 or 1217, which means 15x11 mm or 12x17 mm), installing a more powerful analog (if sized) or simply a new original module will return the device to its former volume.
When selecting a part, pay attention to the height of the module. In the Redmi 5 Plus, the space inside the case is limited, and too high a speaker may not stand in place or overrun the plumes, which will lead to new problems. It is best to buy a module assembled with a frame, if this option is available, as this makes it easier to replace.
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If the software calibration and cleaning fails within 10 minutes, the problem is likely to be physical and require replacement of the component.
After you change the speaker, remember to calibrate again through the engineering menu or test track to make the new speaker "develop." First hours of operation, avoid maximum volume, giving the membrane time to adapt.