How to increase the volume of the speaker on Xiaomi Redmi 4X: safe and effective ways

Owners of Xiaomi Redmi 4X often face the problem of not loud enough from the built-in speaker. Even at maximum volume, music, videos or notifications can sound too quiet - especially in noisy rooms or on the street, the reasons for this lie in the hardware limitations of the model (one speaker with a capacity of 0.8 W), the software limits of MIUI, and the natural wear of components after several years of use.

Fortunately, you can turn up the volume on the Redmi 4X without buying external speakers or headphones. In this article, we will discuss 7 working methods, from basic MIUI settings to hidden engineering menu features. All methods are tested on current versions of the firmware and do not require root rights (except for one advanced option).

1. Optimization of system sound settings in MIUI

Before resorting to radical measures, check the basic parameters of MIUI. Often the problem lies not in hardware limitations, but in the wrong audio profile or activated energy saving functions.

Open the Settings menu → Sound and vibration and perform the following steps:

• 🔊 Turn off adaptive volume: Adaptive sound automatically lowers volume in quiet rooms.
• 🎵 Select the Music profile: in the Sound Modes section, set the Music profile - it uses uniform amplification of all frequencies.
• 📵 Check the restrictions for applications: in Settings → Annexes → Permits → Autoplay ensure that music players (such as Mi Music or YouTube) are not limited in the background.

Also, look at Settings → Battery and Performance → Battery Mode and select High Performance. In Power Saving Mode, the system artificially limits the speaker's power.

2.Use of uniform amplifier (Equalizer)

The MIUI equalizer allows you not only to adjust the frequencies, but also to increase the overall volume by amplifying individual bands, which does not increase the physical power of the speaker, but makes the sound subjectively louder.

Algorithm of action:

1. Open any audio app (such as Mi Music or Google Play Music).
2. During playback, tap on the icon. ⚙️ Settings → equalizer.
3. Choose Rock or Pop presets, which amplify the medium and high frequencies that are better perceived by the human ear.
4. Manually lift the sliders on +3... +6 dB in the ranges of 1 kHz - 8 kHz.

For global amplification (all applications), install a third-party equalizer, such as Wavelet or Poweramp Equalizer, which runs at the system level and applies settings to all audio streams.

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If after changing the equalizer, the sound began to distort ("wheezing"), reduce the gain at low frequencies (60-250 Hz) - they most load the speaker.

3. Activation of the hidden mode "Loud speaker" through the engineering menu

Xiaomi Redmi 4X has a hidden engineering menu where you can turn on Loud Speaker Mode.This option increases the peak power speaker by 15-20%, but can reduce its life with prolonged use.

Instructions for activation:

1. Open the Phone app and enter the combination: ##36446337###
2. From the engineering menu, select Hardware Testing → Audio → LoudSpeaker Mode.
3. Set the value of Level 5 (maximum gain).
4. Save the settings and restart the device.

After you use it, check the sound, it should be noticeably louder, but it will show slight distortion at maximum volume. If the sound quality deteriorates critically, return the value to Level 3.

Make a backup copy of the data

Charge your phone at least 50%

Record the current sound settings

Do not interrupt the process of changing parameters-->

⚠️ Attention: LoudSpeaker Mode increases the load on the speaker, with constant use at maximum volume, the risk of coil burnout increases by 30-40%, and we recommend activating it only when necessary (for example, to watch video on the street).

4. Installation of a custom core (for advanced users only)

If standard methods don’t work, you can install a modified kernel with extended audio profiles, which requires an unlocked bootloader and root rights, but allows you to increase the volume by 40-50% without loss of quality.

Suitable cores for Redmi 4X (codename santoni):

• 🔧 FrancoKernel – Optimizes energy consumption and sound drivers.
• 🔊 ElementalX – has a built-in sound amplifier with settings through the application EX Kernel Manager.
• ⚡ PixelExperience Kernel – ported core from Google Pixel with improved sound processing.

Installation process:

1. Unlock the bootloader through Mi Unlock Tool (the official Xiaomi utility).
2. Install custom recovery (TWRP).
3. Download. ZIP-forum-file XDA Developers (for example, this branch for santoni).
4. Flush the kernel through TWRP and clear the cache (Wipe → Dalvik Cache).

⚠️ Warning: An incompatible core can cause a bootloop (loop load) or overheat the processor.Before installing, check user reviews with the same version MIUI, You can find the firmware version in Settings. → The phone. → Version. MIUI.

5. Cleaning dynamics and checking hardware faults

Over time, the Redmi 4X speaker gets clogged with dust, which reduces its efficiency by 20-30%, and hardware problems such as membrane detachment, contact oxidation or plume damage are also possible.

How to clean the speaker yourself:

• 🧹 Use a soft toothbrush (dry!) to remove dust from the speaker grille. Movements should be neat, without pressing.
• 💨 Blow the holes with a cold air compressor (do not use humid air or steam!).
• 🔍 Check the integrity of the membrane: hold the phone to your ear and play a test sound (e.g. via audiocheck.net.

If the sound has not improved after cleaning, the problem may be:

6.Alternative methods: external amplifiers and Bluetooth speakers

If software methods don't work well, consider hardware solutions that won't turn up the volume of the built-in speaker, but will make it comfortable to listen to music or watch videos.

Options for external amplifiers:

• 🎧 Headphones with microphone: even budget models (such as Xiaomi Basic) give a clearer sound than the built-in speaker.
• 🔊 Portable Bluetooth speakers: Xiaomi Mi Portable Speaker (1600 rubles) or JBL Go 3 (2500 rubles) connect in 5 seconds and work up to 5 hours.
• 📦 Amplifier for speaker: devices like FiiO A1 (2000 rubles.) connected to the 3.5-mm connector and amplify the signal by +12 dB.

To connect external speakers via Bluetooth:

1. Activate Bluetooth in the notification panel.
2. Transfer the column to pairing mode (usually hold the power button for 3-5 seconds).
3. In the Settings → Bluetooth menu, select the device and confirm the connection.

When using external amplifiers, monitor the volume level – exceeding the power of more than 80% of the maximum can damage both the speaker and the audio output of the smartphone.

7. Resetting the sound settings to factory

If you experience distortions after listening to the sound, or if some applications stop playing audio, reset the audio settings, and this will bring all MIUI settings back to the "out of the box" state.

Step-by-step:

1. Go to Settings → System and device → Additional → Resetting.
2. Select Resetting Sound Settings (not to be confused with a full reset!).
3. Confirm the action and wait for the reboot (it will take ~1 minute).

After discharge:

• Check the volume in standard apps (Mi Music, YouTube).
• If necessary, reconfigure the equalizer.
• Make sure that Settings → Sound does not activate media restrictions.

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Resetting audio settings does not delete user data, but returns all equalizer, notification and media settings to factory values.

FAQ: Frequent questions about volume up on Redmi 4X