How to Turn Volume on Xiaomi Phone While Talking: The Complete Guide

Do you constantly ask your interlocutor when calling Xiaomi because his voice is barely heard? Or do your friends complain that you can't hear well? The problem of low volume when talking is one of the most common problems on smartphones of this brand, and the reasons can lie in both software settings and hardware limitations. In this article, we will discuss all possible ways to amplify the sound, from basic settings to hidden functions of the engineering menu and even hardware solutions.

It’s important to understand that Xiaomi artificially limits the maximum volume of the speaker and microphone on some models (especially the budget Redmi and POCO series) due to European safety regulations. But these restrictions can be circumvented by legal methods. We also tell you how to check whether the problems with sound are due to physical damage, oxidation of the contacts of the speaker or contamination of the microphone hole.

This article will suit all modern Xiaomi devices, including Redmi Note 12/13, POCO X5/F5, Xiaomi 13/14 and older models on MIUI 12-14. If you are a user of Android One (for example, Mi A3), some of the instructions will be different – we will note these points separately.

1. Basic volume settings in MIUI

Before digging deeper, check the obvious: it may be that the volume just went off in the settings. Xiaomi has separate regulators for call melody, multimedia and conversational speaker - they're easy to confuse.

How to check:

• 🔊 When you call, press the volume buttons on the sidebar, and a slider will appear on the screen that says "Call Volume" -- it regulates the sound of the person you're talking to.
• 📱 Open the Settings. → Sound and vibration → Loudness. All sliders should be on here (especially Media and Call").
• 🔄 If the "Call Volume" slider is gray and inactive, it's a bug. MIUI. Restart your phone or update your firmware.

Some models (such as the Redmi 10 or POCO M4) have a hidden option called "Amprovement of Sound" to find it:

1. Go to Settings. → Special facilities.
2. Select "Hearing" → "Sound amplification".
3. Activate the switch and adjust the gain level (we recommend starting with +10 dB).

⚠️ Warning: If you change these settings and you start to distort the sound or you get a wheezing, you can return the readings to the standard, which is a sign that the speaker is not physically capable of producing this volume level.

2. Engineering menu: hidden sound settings

If standard methods don't work, it's time to check the Engineering Mode, where you can manually increase the microphone volume and speaker, bypassing the limitations of MIUI. But beware: the wrong settings can damage the speaker!

How to open the engineering menu:

1. Open the phone app.
2. Enter the code ##4636##
3. Select "Phone Information" (some models must first click "Test Options").

Next, go to the Audio tab (or Hardware Testing → Audio) and you're interested in:

• 🎤 "Mic – the volume of the microphone (your voice for the interlocutor).
• 🔈 "Speaker – speaker volume (voice of the interlocutor for you).
• 📞 "Sph" - settings of the conversational speaker (in some models).

For each parameter:

1. Select a type (e.g., "Mic").
2. Level: Start with 150 and gradually increase to 200.
3. Press "Set" to save.

⚠️ Warning: If the sound is interrupted or background noise is added after the changes to the engineering menu, reset to factory settings (#36446337.

Make a backup copy of settings

Record the current parameter values

Start with minimal changes (+10-20 units)

Test the sound after each change-->

3. Sound amplification applications

If you don't want to go through the settings manually, you can use third-party apps, and they work on two principles:

1. Software amplification – increase the volume at the OS level (for example, Volume Booster).
2. Equators – Optimize sound for better audibility (e.g. Wavelet).

Top.-3 tested applications:

• 📲 Volume Booster GOODEV — A simple booster with pre-profiles for calls.
• 🎛️ Wavelet - advanced equalizer with support Viper4Android. Allows you to point to strengthen voice frequencies (we recommend setting "Voice Boost").
• 🔊 SoundAssistant (from Samsung, but runs on Xiaomi) – gives separate regulators for conversational speaker.

How to set up Wavelet for calls:

1. Install the application and give it the rights to "Change system settings".
2. Select a Custom profile.
3. Activate the "Equalizer" and lift the sliders in the range of 1-4 kHz (the frequency of the human voice).
4. Turn on "Limiter" to avoid distortion.

Importantly, some apps require root rights to work properly, and without them, they can only amplify sound to the extent permitted by Android.

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Before installing sound boosters, check if MIUI Optimizer blocks them. To do this, turn off optimization in Settings → Applications → Application Management → Three-point → Special Access → Battery Optimization and add the application to exceptions.

Checking of hardware: speaker and microphone

If the software methods didn't work, the problem could be physical damage to the speaker or microphone.

Dynamics test:

• 🔊 Turn on any audio file (such as music) and check if both speakers sound the same (top and bottom).
• 📱 Call another phone and turn on speakerphone. If the sound wheezes or disappears, the speaker is faulty.
• 🔦 Light a flashlight into the speaker grille: if dust or oxidation is visible, cleaning is needed.

Microphone test:

• 🎤 Record the voice memo and check the quality of the recording.
• 📱 Use the Microphone Test app (e.g. Microphone Test from Play Market).
• 🔍 Check the microphone holes (usually near the camera and at the bottom of the case) if they are clogged with dirt, clean gently with a toothpick (not metal objects!).

Typical hardware problems:

⚠️ Warning: If you're not sure about your skills, don't take your handset apart. IP53 (For example, Redmi Note 11) after disassembly may break the tightness, which will lead to moisture ingress.

5. Update firmware and reset settings

Sometimes, sound problems are caused by firmware bugs, especially for MIUI 13-14 devices, where audio profiles are often lost after updates.

How to check and correct:

1. Update the firmware: Go to Settings → About Phone → System Update. If an update is available, install it and restart the phone.
2. Reset the sound settings: Open Settings → System and device → Reset. Select Reset Sound settings (not a full reset!).
3. Clear the cache: In the same reset menu, select "Clean all cache data." This will delete temporary files that may interfere with the sound services.

If the problem has occurred after the update, you can try to roll back to the previous version of MIUI.

1. Download the necessary firmware from the official Xiaomi website.
2. Go to Settings → About Phone → MIUI version and tap the MIUI logo 10 times to activate “Additional Settings”.
3. Select "Select firmware file" and specify the downloaded file.

6. Alternative solutions: headset and external speakers

If no settings help, consider hardware solutions:

Headset bluetooth:

• 🎧 Xiaomi Mi True Wireless Earbuds or Redmi Buds 4 – budget options with a good microphone.
• 🔊 Baseus WM01 — noise-canceling headset, suitable for noisy places.
• 📱 In Bluetooth settings, enable "Absolute Volume" (in Settings) → Connected devices → Settings of the gear next to the headset).

External speakers:

• 🔈 Xiaomi Mi Portable Bluetooth Speaker – compact speaker with speakerphone function.
• 🎤 JBL Charge 5 – a powerful speaker with a good microphone for conferencing.
• 📱 Connect the speaker via Bluetooth or 3.5mm connector (if any).

Wired headset:

• 🎧 Even cheap headphones with a microphone (such as the Xiaomi Piston) often produce better sound than the built-in speaker.
• ⚠️ Before buying, check if your model supports Xiaomi. OMTP or CTIA connector (on Redmi usually) CTIA).

If you make frequent calls in noisy places, consider a noise-cancelling headset (like the Sony WH-CH720N or Soundcore Life Q30) that automatically suppresses background noise, improving audibility.

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Using a headset or external speaker not only improves sound, but also reduces the load on the phone’s built-in speaker, prolonging its life.

7. When to contact the service center

If you've tried all the methods, but the problem is still there, it's probably a hardware malfunction, and here are the signs that it's time to get your phone repaired:

• 🔊 The sound disappears completely or becomes quieter with time (possibly the plume of the dynamics departs).
• 🎤 The interviewee hears you "like from a barrel" - a sign of damage to the microphone.
• 🔥 Phone overheats when talking (may be short circuit in the sound tract).
• 💧 The sound appeared after moisture hit (even if the phone is "dried up").

The cost of repairs in official Xiaomi services (in Russia for 2026):

Before the service visit:

1. Make a backup copy of the data (in case of resetting).
2. Make a video to show the problem (so the master understands what’s wrong).
3. Check whether the warranty is maintained after repair (on some models, opening the case will cancel the warranty).

⚠️ Attention: informal services often put cheap speakers that quickly fail. Xiaomi official centers use original parts, but repairs there are more expensive.

FAQ: Frequent questions about volume on Xiaomi