Did you notice that while calling, the other person is not audible, even though music and video play normally? The problem of weak sound in the conversational dynamics of Xiaomi is one of the most common among smartphone owners of this brand. The reasons can vary from dusty grilles to the software limitations of MIUI. In this article, we will examine all possible ways to increase the volume, from basic settings to hidden functions of the engineering menu and even hardware solutions.
It's important to understand that the speaker (also known as the earpiece) is physically smaller than the multimedia speaker, so its maximum volume will always be lower. However, often the problem is not the hardware, but the software: the manufacturer artificially lowers the sound level to protect hearing or save battery life. We will show how to circumvent these restrictions without risking the device.
This article is suitable for all Xiaomi, Redmi and POCO MIUI-based models (including MIUI 14 and HyperOS), as well as custom firmware devices. If the sound remains quiet after all the manipulations, at the end of this article you will find a checklist for hardware malfunction diagnostics.
1. Checking basic sound settings
Before digging deeper, make sure the problem isn't trivial settings. Often users accidentally change the sound settings or activate modes that lower the volume.
Open the Settings → Sound and vibration and check:
- 🔊 Call and notification volume – the slider should be at maximum.Please note: in some models (Redmi Note 11, POCO X5) The volume of the speaker is regulated separately from the multimedia.
- 🚫 Don't worry, the mode has to be turned off. Even if it's activated for alarms only, it can affect the sound of calls.
- 🎧 Audio effects -- turn off all bass amps or equalizers, and they can distort the sound in the conversational speaker, making it quieter.
- 🔄 Reset audio settings – at the bottom of the Sound and Vibration menu, find the reset option (may be called Restore Default Settings").
If your model has a separate regulator for Call Volume (like the Xiaomi 13 Pro), try changing it during an active call – sometimes the slider is hidden and only appears when you talk.
⚠️ Warning: If the sound is completely lost after changing the settings, restart the device. In rare cases, resetting the audio parameters may cause a temporary failure of the speaker driver.
2. Cleaning the conversational speaker from dust and dirt
One of the most common causes of silent sound is contamination of the speaker, where dust, hair and skin particles accumulate under the grille over time, blocking sound waves. Unlike a multimedia speaker, the earpiece is located next to the front camera and is more likely to be clogged.
How to clean the speaker without breaking the phone:
- 🧹 Soft brush - use a clean toothbrush with soft bristles. Carefully run the speaker along the grille without pressing so as not to damage the membrane.
- 💨 Compressed air cylinder - short pulses (no more than 1 second) blow the hole. Hold the balloon vertically to avoid fluid intrusion.
- 🧲 Scotch tape or sticky tape -- cut a small piece and press it gently against the bars, then take it off. Repeat. 2-3 once.
- 🚫 What NOT to do: Don’t use needles, toothpicks or wet wipes – it will damage the speaker!
To visually check, turn on the flashlight on your phone and light the speaker on the grille. If you see a buildup of dust, repeat the cleaning. After the procedure, check the sound by calling another phone.
How do you know if the speaker is full?
3.Use of the engineering menu to amplify sound
Xiaomi hides the advanced audio settings in the Engineering Mode, where you can increase the volume above standard limits, but it is important to do this carefully so as not to damage the speaker.
Instructions for entry:
- Open the Phone app and enter the code: ##36446337##
- Select Hardware Testing → Audio → Speaker Test.
- In the Receiver section, find the parameters: Max Vol is the maximum volume (the default value is usually 160). Current Vol is the current volume.
Max Vol
180
Do not exceed 200 – this can cause sound distortion or damage to the speaker!
Save the settings and restart the phone.
For some models (POCO F4, Redmi K50) the code of the engineering menu may differ.
- ##4636## → Audio → Volume
- #6484## (for testing hardware components)
⚠️ Warning: Changes to the engineering menu will not persist after resetting or updating MIUI. Also on some firmware (HyperOS) access to the Audio partition can be blocked.
4. Apps to amplify sound: top-5 work-action
If standard methods don't work, try third-party utilities, which work on two principles: either amplify sound at the software level or bypass the limitations of MIUI. It's important to choose high-ranking and fresh-up apps.
| Annex | Principle of work | Pluses | Cons |
|---|---|---|---|
| Volume Booster | Increases volume through system APIs | Simple interface, works without root | Can distort the sound at maximum |
| SoundAssistant | Advanced management of sound profiles | Volume setting by application | Requires permission to access notifications |
| Mi Sound Enhancer | Modifies the MIUI audio driver | Optimized for Xiaomi | It doesn't work on all models. |
| Equalizer FX | Adjusts frequencies through the equalizer | Improves clarity of voice | Does not increase physical volume |
| ViPER4Android | Full sound processing | Maximum customization | Requires root or magisk |
To install ViPER4Android on Xiaomi without root:
Download APK from the official website |Install Magisk (if there is root) |Activate the ViPER module in Magisk Manager |Reboot the phone |Configure the "Phone Call" profile in the application-->
If the sound gets worse after installing the app (wheezing or distortions appear), return the default settings and try another solution.
5. Update firmware and reset settings
Sometimes the problem with quiet sound in the conversational speaker is due to bugs in the firmware. The manufacturer can lower the volume in certain versions of MIUI, and then fix this in the updates.
How to check and update the software:
- Go to Settings → About the phone → System update.
- If you have an update, download it and install it. Pay attention to the MIUI or HyperOS version.
- After the update, reset the sound settings (see Section 1).
If there are no updates, but the problem occurred after the last update, try to roll back to the previous version via Fastboot or Recovery.
- Download the necessary firmware from the Xiaomi Firmware Updater website.
- Use the Mi Flash Tool to install via Fastboot.
- Select the clean all option to avoid conflicts.
⚠️ Attention: Firmware rollback erases all data on the phone. Pre-backup through Settings → Additionally. → Backup and reset.
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If the quiet sound came after the MIUI update, check out the feedback on the forums (4PDA, XDA).It's often a massive problem and users share workarounds.
6. Hardware malfunctions: when to carry in the service
If none of the software methods worked, the problem is likely hardware, and here are signs that the speaker needs repair or replacement:
- 🔇 The sound is completely gone (even at maximum volume).
- 🎵 There were extraneous noises: wheezing, crackling, whistling.
- 💧 The phone fell into the water or was exposed to high humidity.
- 🔧 The speaker was previously understood (for example, when replacing the display).
The most common hardware reasons:
| Malfunction | Signs. | Cost of repair (cf. para. |
|---|---|---|
| Detachment of contacts dynamics | The sound appears when you press the screen. | 500–1 200 ₽ |
| Membrane damage | Strong distortions, wheezing | 1 500–2 500 ₽ |
| Oxidation after moisture is introduced | The sound comes and goes. | 1 000–3 000 ₽ |
| Failure of the audio codec | Both dynamics are not working. | 2 000–5 000 ₽ |
Before visiting the service, check:
- 🔌 Does the speaker work in hands-free mode (if so, the problem is in the earpiece).
- 🎧 Connect the headphones – if the sound in them is normal, the speaker is definitely faulty.
- 🔄 Flip your phone to a pure Android (like LineageOS) and if the sound comes back, it's the firmware's fault. MIUI.
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If the phone is warranty, do not open it yourself! in official services Xiaomi will replace the speaker for free, if the malfunction is not your fault.
7.Alternative solutions: speakerphone and Bluetooth
If repair is not an option, and the sound in the dynamics remains quiet, use the workarounds:
- 📞 Speaking: When you call, click on the speaker icon in the call interface.
- 🎧 Bluetooth headset – connect wireless headphones (such as Xiaomi AirDots). → Bluetooth Enable Audio Option via Bluetooth.
- 🔗 Call forwarding – set up redirect to another phone via Settings → SIM-maps and mobile networks → Call forwarding.
- 📱 Call apps — use WhatsApp, Telegram, or Google Meet for voice communication. They often have better audio compression.
For models with IR-A port (for example, Redmi Note 8 Pro) can connect a wired headset through an adapter (for example, Xiaomi Type-C to the port). 3.5mm). The sound in the headphones will be louder than in the conversational dynamics.