How to increase the volume of the speaker on Xiaomi Redmi 4

Xiaomi Redmi 4 has proven to be a reliable device with excellent value for money, but many users over time begin to notice a decrease in the level of sound they play, which can be due to both the software limitations of the MIUI operating system, as well as the natural wear of the hardware or the banal pollution of the dynamic grid. Quiet sound is often a serious problem when watching video in noisy places or during a conversation on speakerphone.

Owners often wonder if it is possible to software-bypass the standard volume limits set by the manufacturer to protect the acoustic system. Fortunately, the Android architecture and the MIUI shell provide enough tools to fine-tune the audio stream. In this article, we will examine all the available methods, from simple settings in the menu to more complex manipulations through the engineering menu.

It's important to understand that maximum volume isn't always a good thing if it's at the expense of sound quality. Excessive signal amplification can lead to wheezing, distortion and, in the worst case, burnout of the speaker, so it's important to balance the sound level and the safety of your hardware components.

Basic sound and equalizer settings in MIUI

Before you get to the tricky methods, make sure all the standard settings are maxed out and optimized correctly.The MIUI shell offers built-in tools that users often ignore. First of all, check whether Dolby Atmos or the standard equalizer is activated in the audio settings.

To access the advanced settings, go to Settings → Sound and Vibration → Sound Effects. Here you will find a slider for the total volume and equalizer settings. Many people forget that preset settings (such as Rock, Pop, Jazz) can significantly affect the perceived volume of medium and high frequencies.

• 🔊 Activate Dolby or Hi-Fi mode in the audio effects menu to expand the dynamic range.
• 🎚️ Manually lift all the equalizer bands up, creating a curve with a slight rise in the mid-frequency area.
• 📢 Make sure that in the "Alarm Loudness" and "Multimedia Volume" section, the sliders are set to 100%.

⚠️ Attention: Raising all equalizer frequencies to maximum can cause digital distortion (clipping), especially in low bitrate tracks.

Special attention should be paid to the Mi Sound Enhancer feature, which is often found in the firmware for Redmi. It allows you to adjust the type of headphones, but also affects the output of sound through the main dynac, if the system does not have a strict restriction on headphones. Experiment with this setting, even if you use a built-in speaker.

Using an engineering menu to calibrate audio

One of the most effective ways to increase volume is to access the hidden engineering menu, a system section designed to test hardware where you can adjust levels (amplifications) for different use cases. On devices with MediaTek processors that are installed in Redmi 4 Prime (MT6797), this method works especially well.

To enter the engineering menu, open the Phone app and dial the combination ##3646633##. If the code didn't work, maybe your version of the code did. MIUI It blocks direct access, and you will need to install a special dealer application, for example, Mobile Uncle Tools. → Audio → Audio Debug.

Here you will see a list of modes: Normal Mode (normal mode), Headset (headphones), Speaker (loud communication) and Headset + Speaker. We are interested in Normal Mode for the main speaker and Speaker for hands-free communication. Inside, choose Media (media) or Speech (conversation).

Change the values in the Max Vol field gradually. The standard value is often limited to 120-130. Raising to 145-150 units gives a noticeable increase. Once the value changes, be sure to press the Set button to save the parameter. Remember to restart the device to apply the changes.

⚠️ Warning: Exceeding MaxVol above 160 in the engineering menu can cause irreversible damage to the speaker membrane due to overloading power!

Application of third-party amplifiers

If tinkering with the engineering menu seems too risky, Google Play Store apps come to the rescue, running on top of the Android system mixer, software-enhanced audio stream before sending it to the DAC. The most popular and proven solutions are Volume GO, Precise Volume and Equalizer FX.

Volume GO allows you to increase the maximum volume of the system to 500% of the standard level. The principle of operation is simple: you install the application, give the necessary permissions and use the widget on the desktop to adjust the overall sound level, but it is worth remembering that software amplification has its limits.

• 📱 Precise Volume: Allows you to adjust 100 volume levels instead of the standard 15, providing smoother adjustments.
• 🎚️ Equalizer FX: Contains a powerful bass booster and presets that can make the most of a small speaker.
• 🔊 Super Volume Booster: A specialty application for extreme amplification, but requires careful use.

It is important to understand that these applications consume additional CPU and battery resources. MIUI The system can aggressively kill background processes of audio amplifiers to save energy, in which case you need to add the application to the battery exception list (Settings) → Battery → Annex → No restrictions).

Physical cleaning and maintenance dynamics

Often the problem with quiet sound is not the software, but the banal dust. The speaker grid on Redmi 4 is located at the bottom of the body and constantly collects pile, dust and skin fat. Clogged holes prevent the sound wave from freely coming out, which reduces the volume by 30-50%.

To clean, use a soft toothbrush or a dry brush to paint. Walk carefully on the grid, removing visible contaminants. You can use a sticky tape (scotch) to apply it to the net to draw dust from the depths. Compressed air is permissible, but only with short "puffs" and from a distance of at least 10 cm, so as not to damage the membrane with a sharp pressure drop.

There's a popular but risky method of burning through the speaker: turning on a low-frequency track at maximum volume, and it's thought that vibration helps to knock out dust. However, on older devices, this can lead to the uncoiling of the speaker, better to use special audio recordings to clean the speakers that change frequencies smoothly, or simply clean the grid mechanically.

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Use soft plasticine or a special cleaning gel adhesive for electronics to pull dust from hard-to-reach speaker mesh holes without disassembling the phone.

Modification of system files (for advanced users)

For owners of devices with Root rights (for example, through Magisk), you can edit system configuration files. The main file responsible for mixing sound in Android is called the "Mixing" file. mixer_paths.xml. He's on his way. /system/etc/.

This file contains paths and values for different scenarios, and finding lines that contain "speaker" and "gain" can increase the numerical values, but this method requires accuracy: one error in the XML syntax can cause the sound to disappear completely or the phone to go to the bootloop.

<path name="speaker">


<ctl name="RX3 Digital Volume" value="84"/>




<ctl name="RX2 Digital Volume" value="84"/>




<ctl name="COMP0 Switch" value="1"/>




</path>

In the example above, increasing the RX3 Digital Volume and RX2 Digital Volume can give you an increase. But standard values are often close to the DAC limit. It is more efficient to look for the compressor or limiter parameters and weaken them, allowing the signal to be louder before the restriction begins.

⚠️ Note: Editing system files is only possible if you have Root rights.Be sure to make a full backup (Nandroid backup) through any changes TWRP. An error can cause the device to fail.

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Modifying system files is the most effective, but requires root rights and a deep knowledge of the Android structure. For most users, it is safer to use the engineering menu.

Hardware Limitations and Dynamic Replacement

And remember, the Xiaomi Redmi 4 is a budget device that was released a few years ago, and it has physical limitations in power and size, and even software tricks can't turn it into a powerful speaker system, and over time, the magnet in the dynamics can demagnetize and the suspension loses elasticity.

If the sound is quiet, hoarse, or gone, and the software methods are not working, it's probably a low-cost procedure. A new original or high-quality analog speaker will bring back the factory volume and purity of sound. When you buy, pay attention to the thickness of the speaker to fit into the seat.

It's also worth checking the plume connecting the mainboard to the lower board (where the speaker and charging connector are located). On Redmi 4, this plume often oxidizes or departs, leading to loss of contact and loss of sound.

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If software methods and cleaning did not help, and the sound began to wheez – this is a sure sign of physical wear of the speaker, which is treated only by replacing the component.