How to Clean the Sound on Xiaomi Phone: From Physical Cleaning to Software Settings

The sound on your Xiaomi has become quiet, hoarse or accompanied by extraneous noises? The problem can be both physical contamination of the speakers and software failures. In this article, we will discuss 7 proven ways to return a clean and loud sound – from the banal cleaning of dust to fine-tuning the equalizer and diagnosing hardware malfunctions.

It's important to understand that if the sound is completely gone (for example, after a phone crash), it's mechanical damage - only the service center will help. But in 80% of cases, the problem is solved independently in 10 to 30 minutes. We have compiled instructions for all Xiaomi, Redmi and POCO models, including the latest flagships on MIUI 14/15 and HyperOS.

So let's start with the simplest one, which is to check the physical state of the speakers, and you probably don't even have to go through the settings.

1. Physical cleaning of speakers: how to remove dust and debris

The first and most common cause of sound deterioration is speaker pollution, where dust, pocket villi, or small debris enter the grille and create a barrier to sound waves, especially for models with a lower speaker (such as the Redmi Note 12 or Xiaomi 13T), which often comes into contact with surfaces.

To clean the speakers without risking damaging them, follow this instruction:

• 🧹 Soft brush. Use a soft bristling toothbrush or a special electronics brush. Carefully run the speaker along the grille without pressing.
• 💨 Compressed air. A compressed air canister (sold in electronics stores) will help blow out dust from hard-to-reach places. Keep the balloon vertically at a distance of 5-7 cm.
• 🧲 Scotch or sticky tape. Cut a small piece of tape, put it sticky side out, and gently wet the speaker grille. That removes the small particles.
• ❌ What NOT to do: Do not use toothpicks, needles, or wet wipes – they can damage the speaker membrane or leave fibers behind.

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If you have a Xiaomi 12S Ultra or another model with Harman Kardon’s harmonious speaker, clean the grille especially carefully – its cells are smaller than those of standard speakers.

After cleaning, check the sound by playing a bass track (e.g. via YouTube Music or Spotify).If the wheezing is left, proceed to the next step.

2. Check for software failures: reboot and reset sound settings

Sometimes the sound gets quiet or distorted due to temporary MIUI failures, which can happen after you update your system, install a new app, or even get your phone overheated.

• 🔄 Reboot your phone. Hold the power button 10 seconds before the menu appears and select Reboot. This will reset temporary files that can block the sound.
• 🔇 Turn off/on silent mode. Quickly switch the volume slider up and down, sometimes it wakes up the sound system.
• 🎵 Reset the sound settings. Go to Settings. → Sound and vibration → Additionally. → Resetting the sound settings.

If the sound comes back after the reboot, but the problem repeats, it's the application or the service that's to blame.

1. Launch your phone in Safe Mode (press the power button → long tap on "Switch off" → "Safe Mode").
2. Check the sound in this mode. If it's clean, delete the newly installed apps one by one.

3. Equalizer and sound effects setup in MIUI

The equalizer and the built-in sound effects in Xiaomi can both improve and spoil the sound. For example, Dolby Atmos in Movie mode adds bass, but on cheap speakers it causes wheezing. And the wrong equalizer settings make the sound "deaf."

To tune the sound optimally:

1. Open Settings → Sound and vibration → Equator.
2. Select Preset Normal or Customized and adjust sliders: 🔊 32-60 Hz: responsible for bass. Reduce if you hear wheezing. 🎶 250-500 Hz: medium frequencies. Increase for better legibility of voice. 🎧 1-16 kHz: high frequencies. Decrease if the sound is too metallic".

Dolby Atmos

Hi-Res Audio

For models with stereo speakers (Xiaomi 13 Pro, Redmi K60) check the sound balance:

1. Go to Settings → Special Options → Sound Balance.
2. Make sure the slider is in the middle, and shifting left/right can create the illusion of a "husky" sound.

4. Diagnostics of hardware problems: microphone, 3.5 mm connector, Bluetooth

If the sound is distorted only in certain scenarios (for example, when talking on the phone or through Bluetooth headphones), the problem may lie in a specific component.

To check the microphone:

1. Open the Dictaphone app and record 10 seconds of silence.
2. Play the recording. If you hear wheezing or noise, the microphone is contaminated or damaged.

If the problem persists, reset to factory settings (don’t forget to make a backup!):

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1. Go to Settings → About the phone → Reset settings.
2. Choose to erase all data and confirm.
3. After the reboot, check the sound before data recovery – if it’s clean, the problem was in the software.

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On models with HyperOS (for example, Xiaomi 14), you can reset your settings through Recovery: turn off your phone, press Volume.+ + Power, select Wipe Data.

6. Moisture and oxidation check (if the phone fell or got wet)

If your Xiaomi fell into water, was in a moist environment (such as a bathtub), or condensed after a cold, the sound could suffer from contact oxidation.

• 🌊 The sound comes and goes.
• 🔊 In the dynamics, you can hear "bubbling" sounds.
• 📉 Volume changes spontaneously.

What to do:

1. Dry your phone: Put it in a bag of silica gel (shoebox bags) for 24 to 48 hours. Don't use a hair dryer or microwave, it will damage the internal components!

Check the moisture indicator

• On most Xiaomi models, it is in the tray for SIM-cards (small white mark).
• If the label turned red or turned purple, there was contact with moisture.
• Contact the service if the sound is not restored, you will need to clean the contacts with alcohol and check the power chains of the speaker.

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On models with IP53 protection (Redmi Note 12, POCO X5), the speakers have a hydrophobic coating, but it does not save from complete immersion in water.

7.When to contact the service: signs of a malfunction of the speaker

If you've tried all the ways, but the sound is hoarse, quiet, or non-existent, it's probably a hardware problem.

• 🔇 Complete absence of sound in the dynamics (even after resetting).
• 🔊 Extraneous noises (creaming, squeaking), not dependent on volume.
• 📱 Vibration instead of sound when playing music.
• 🔧 Physical damage (dents, cracks near the speaker).

The cost of repairing the speaker in Xiaomi:

Before the service visit:

• 📋 Make a data backup – a complete reset may be required during repairs.
• 🔍 Check if the service center has original parts for your model.
• 💰 Compare the cost of repairs to the cost of a phone. 9A Replacement of the speaker can cost 30% of the price of a new device.

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If the phone is warranty, don't disassemble it yourself! The warranty is canceled if the seals are broken.

FAQ: Frequent questions about Xiaomi sound