How to reduce the volume of the speaker when talking on Xiaomi Poco X3: all working ways

Loud sound in the conversational speaker Xiaomi Poco X3 is a common problem that interferes with comfortable communication. Many users complain that even at a minimum level of volume, the voice of the interlocutor sounds too loud, and adjusting the buttons during the call does not give the expected effect. In this article, we will discuss all possible ways to reduce the volume of the speaker, from standard settings to hidden functions of the engineering menu and hardware solutions.

The reasons for excessive volume can be different: the features of the MIUI firmware, the hardware limitations of the model, or individual audio profile settings. It is important to understand that the Poco X3 (codename surya) is equipped with a powerful speaker that is optimized for hands-free communication, but this is not always convenient for ordinary calls. We tested all methods on current versions of MIUI 12-14 and prepared step-by-step instructions with nuanced information.

If you've tried to turn down the volume with buttons while you're talking, but the result is not satisfactory, don't rush to reset the settings. 80 percent of the time, the problem is solved software-free, without any interference with the hardware, and let's start with the simplest ways and gradually move on to the advanced ones.

1. Standard volume control during the call

The most obvious, but often underestimated, way to do this is to use physical volume buttons during an active call, and many users don't know that the Poco X3 is different from other smartphones, and here's how to do it right:

• 📞 Start a call or answer an incoming call.
• 🔊 Press the Volume Up/Lower button on the side panel of the phone.
• 🎯 The “Call Volume” slider will appear on the screen – move it to the left to the minimum level.
• 🔄 Repeat 2-3 times: Sometimes the system resets after the first change.

If the slider does not appear or the volume does not change, check:

• 🚫 Are there any active Do Not Disturb profiles** or Airplane Mode profiles (they can block adjustments).
• 🔋 Battery level – at critically low charge (<15%) The system can limit the functions.
• 📱 Availability of updates MIUI — In older versions of the firmware were bugs with sound control.

⚠️ Note: On some Poco firmware X3 The minimum volume level is still too high, and this is due to the hardware limitations of the model, so move on to the following methods.

2. Volume setting via the "Sounds and Vibrations" menu

MIUI has hidden audio settings that allow you to tune the volume of the speaker more accurately, and these settings are not always obvious, but they work more stable than button settings.

1. Open the Settings. → Sounds and vibrations.
2. Scroll down and select Volume.
3. At the top of the screen, tap the icon. ⚙️ («Settings) or three points (depending on version) MIUI).
4. Activate the option Separate volume control (if it is disabled).
5. Go back and manually set the minimum values for: 📞 Calls (conversational speaker) 🎵 Media (music, video) 🔔 Notifications

After this, the volume of the calls should go down. If there is no change, try restarting the phone - sometimes the settings are applied only after the reboot.

On some custom firmware (e.g. Pixel Experience or LineageOS), this method may not work, so go to the engineering menu.

3.Use of the Engineering Menu (MTK Engineer Mode)

If standard settings don't work, you can turn down the volume through the engineering menu. This method requires caution, as incorrect changes can affect the quality of communication. Poco X3 is built on a Qualcomm Snapdragon 732G chip, so we use the appropriate codes:

1. Open the Phone app.
2. Enter the combination: ##36446337## (or #4636## for the alternative menu).
3. Go to the Hardware Testing → Audio section.
4. Select LoudSpeaker Mode (or Normal Mode if the first option is not available).
5. In the Max Vol field (maximum volume), set the value 80–100 (usually 140–160 by default).
6. Save the settings and restart the phone.

For applications requesting ADB-permissions, follow the following steps:

adb shell pm grant com.package.name android.permission.WRITE_SECURE_SETTINGS

Replace com.package.name with an application identifier (e.g. com.lexa.fakequalizer).

Example of settings in Precision Volume:

1. Install the app and provide access via ADB.
2. Select Call Volume (Call Volume).
3. Move the slider to the left to a comfortable level (for example, 40–60%).
4. Save the profile and activate it.

💡

If the volume doesn’t change after installing the app, check if MIUI Optimizer blocks it. To do this, turn off optimization in the developer settings (Settings → About Phone → MIUI version – tap 7 times to activate the developer mode, then Settings → Additional → Developers → Disable MIUI optimization).

5. Hardware methods: cleaning speaker and replacement of mesh

If the software didn't work, the problem could be physical contamination of the speaker or wear on the sound membrane. On the Poco X3, the speaker is located at the top of the screen (near the front camera), and over time, dust and skin particles clog the mesh, leading to distortion of the sound and apparent "loudness."

How to clean the speaker:

• 🧹 Use a soft brush (for example, for makeup) or compressed air (a canister).
• 💧 Apply 1-2 drops of isopropyl alcohol to a cotton swab and gently wipe the mesh.
• 🔊 Check the sound after cleaning - if the wheezing has gone but the volume has remained high, the problem is settings.

If the cleaning didn’t work, you may need to replace the grid or the speaker itself, either by yourself (if you have experience) or in a service center, and the cost of replacing the speaker with a Poco X3 in 2026 is between 800 and 1,500 rubles (depending on the region).

⚠️ Warning: When you disassemble your phone yourself, you risk damaging your screen plumes or battery. If you're not sure about your skills, contact the service. X3 speaker soldered to the motherboard, so its replacement requires soldering work.

6. Alternative solutions: headset, Bluetooth, VoIP

If all of the above methods have failed, consider workarounds:

• 🎧 Use a wired headset – the sound in the headphones is regulated separately and usually does not cause discomfort.
• 📶 Bluetooth headphones – modern models (e.g. Xiaomi Buds 4 or Redmi AirDots 3) support fine volume setting.
• 📞 VoIP calls (WhatsApp, Telegram, Viber) – in instant messengers, the volume is adjusted regardless of system calls.
• 🔕 Redirect calls to another number (if you have a second phone with normal volume).

For Bluetooth headsets, we recommend:

• In Bluetooth settings (Settings → Connected Devices), select your headset and activate the Use for Calls option.
• In the headset app (if any), turn off the “Voice Amplification” function** – it can artificially raise the volume.

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If the volume problem is only manifested in the standard Phone app, and everything is fine in messengers, then the firmware is to blame, in which case resetting the settings or flashing it to a custom MIUI (for example, xiaomi.eu) will help.

FAQ: Frequent Volume Adjustment Questions on Poco X3