How to reduce the volume of the speaker on Xiaomi Poco X3: all working methods

The speaker on the Xiaomi Poco X3 is often too loud, making calls uncomfortable. Even at a low volume, the voice of the interlocutor can sound shrill, especially in quiet rooms or when using a headset. The problem is with the smartphone’s hardware settings, which are optimized by default for noisy conditions.

In this article, we'll look at all the ways you can reduce the volume of a speaker, from standard MIUI settings to hidden menu options, how to adjust the sound without root rights, what apps can help you tune the audio more accurately, and what to do if the changes don't persist after a restart. Importantly, some methods require caution to keep the phone running smoothly.

Why is the Poco X3’s speaker too loud?

The problem of excessive volume of the speaker on the Poco X3 (models M2007J20CG and M2007J20CI) is associated with several factors:

• 🔊 Hardware calibration – the manufacturer adjusts the speaker to maximum audibility in noisy conditions, without taking into account individual preferences.
• 📱 Limitations MIUI — firmware does not allow volume to be lowered below a certain threshold through standard settings.
• 🔧 Absence EQ for calls – unlike media sound, conversational audio stream does not have a built-in equalizer.
• 📡 Network problems – a weak mobile signal can automatically increase volume to compensate for interference.

In practice, this means that even when moving the volume slider to the minimum during the bell, the speaker continues to work at ~60-70% of the maximum.

⚠️ Note: Change of parameters in the engineering menu or through ADB This can cause a malfunction of the audio system, and we recommend backing up the data before experimenting.

Method 1: Using standard MIUI settings

Before you resort to complex manipulations, check the basic MIUI settings. Some firmware versions for the Poco X3 have hidden volume control options:

1. Open the Settings app → Sound and vibration.
2. Scroll down to the Volume section and click on it.
3. Enable the option of Separate Volume Control (if available in your MIUI version).
4. Move the Call slider to the far left position.

If there is no option Separate adjustment, try an alternative path:

• 📞 During an active call, press the up/down volume button.
• 🔽 There will be a separate slider for the conversational speaker - reduce it to a minimum.
• ⚙️ On some firmware next to the slider there is a gear icon - click on it for additional settings.

These methods do not work on all versions of MIUI. If the slider does not respond or resets after rebooting, proceed to the next method.

Method 2: Engineering Mode (MTK Engineering Mode)

On the Xiaomi Poco X3 with Qualcomm Snapdragon 732G processor, there is a hidden engineering menu where you can more accurately adjust the audio settings.

1. Open the Phone app and enter the combination: ##36446337###
2. Select Hardware Testing → Audio → LoudSpeaker Mode.
3. In Volume, find the settings: Sip Call Volume (volume of VoIP calls) Voice Call Volume (volume of regular calls)

0-60

80-100

Save the settings and restart the phone.

Do not change other options in the engineering menu, especially those related to RF Band or Modem Settings – this can disrupt the mobile network.

⚠️ Attention: After update MIUI You can reset the engineering menu settings. Write down the values you use to quickly restore them.

Charge your phone at least 50% | Make a backup of the data | Record the current sound settings |Do not interrupt the process of changing the parameters-->

Method 3: Applications for fine-tuning sound

If standard methods don't work, use third-party utilities. Poco X3 is suitable for:

• 🎛️ Volume Booster & Equalizer (by Smart Android Apps LLC) — It allows you to separately adjust the volume of calls and multimedia.
• 🔊 Precise Volume - gives access to the 100-The level of volume instead of the standard 15-20 position.
• 📱 SoundAssistant (from Samsung, but runs on Xiaomi) – advanced settings for each type of sound.
• 🎧 Equalizer FX — includes an equalizer for conversational audio stream (requires root for full functionality).

Instructions for Precise Volume:

1. Install the app from Google Play.
2. Open it and give permission to change system settings.
3. In the Call Volume section, set the value of 30-40% of the maximum.
4. Activate the Lock Volume option so that the settings are not reset.

Restriction: Without root rights, apps can reset settings after rebooting. For permanent effect, you will need to enable auto-run utility in the phone settings.

💡

If the volume does not change after installing the application, check the "Special features" section in the Android settings - some utilities require activation there.

Method 4: Configure with ADB (for advanced users)

For deep customization of sound, you can use ADB (Android Debug Bridge), which requires a computer and basic knowledge of working with the command line.

Steps:

1. Enable USB Debugging in your phone settings (About Phone → 7 times click on MIUI Version → Return to Additional → For Developers).
2. Connect Poco X3 to your PC and follow the command: Adb devices Make sure the device is identified.
3. Enter the command to view current volume values: adb shell settings list | grep volume
4. Change the volume of calls (values from the 0 before 7): adb shell settings put system volume_voice_call 2

Permissible values for volume_voice_call:

• 0 - no sound
• 1-3 - Minimum volume
• 4 - Medium level (recommended)
• 5-7 - maximum volume

⚠️ Attention: Wrong commands ADB Do not change other settings put without understanding their purpose.

Method 5: Physical modification (extreme case)

If the software methods don't work, some users will use physical dimming of the speaker, which is a risky method, but it gives a guaranteed volume reduction:

• 🔧 Insulation tape sticker - stick a thin layer on the speaker grille (reduces volume by ~30%).
• 🎨 Acrylic paint - apply 1-2 layer on the inside of the lattice (without touching the speaker membrane!).
• 🛠️ Replace the grille – install a grille with less perforation (suitable from other Xiaomi models).

Warnings:

• ❌ Do not use glue or sealant – they can get on the speaker membrane.
• ❌ Do not disassemble the phone without experience - the risk of damage to plumes.
• ❌ Physical modifications are not warranty (if they are still valid).

This method is irreversible and can degrade the sound quality, and only use it if all other methods have proved useless.

💡

Physical modification of the speaker should be the last option, and in 90% of cases, the problem is solved by software settings or engineering menus.

Frequent problems and their solutions

When changing the volume of the speaker, Poco X3 users face typical difficulties:

If none of the methods worked, check the integrity of the speaker, possibly a hardware problem. Use the sound test in the engineering menu (#4636## → Audio Test) to diagnose.

FAQ: Answers to popular questions