Cleaning the speaker on Xiaomi through settings: full instruction for all models

Why Xiaomi’s speaker is starting to wheez and how to fix it software

Did you notice that the sound on your Xiaomi has become quieter, there are wheezing or distortion? The reason is not always the physical clogging of the speaker — often the problem is solved through system settings. 80% of the time users prematurely carry the phone to the service, although they could restore the sound quality themselves in 5 minutes.

Modern Xiaomi smartphones (from Redmi Note 10 to Xiaomi 13 Ultra) are equipped with dust protection speakers, but even this does not save from the accumulation of debris in the sound tract. Fortunately, MIUI has built-in diagnostic and cleaning tools that few people know about. In this article, we will analyze all working methods from resetting sound settings to hidden engineering menus.

It's important to understand that if the speaker has completely stopped making sounds (there's not even vibration when ringing), the problem is more hardware, but if there's sound but it's distorted, cleaning through the settings will help 9 out of 10 times.

Preparation: what to check before cleaning the speaker

Before you go into the settings, make sure that the problem is in the dynamics, not in system failures or applications.

• 🔊 Check volume: press physical volume buttons up/down. Sometimes the problem is in randomly activated "Silent Sound" mode (Settings) → Sound. → Sound modes).
• 🎵 Test different sources: run music through Mi Music, YouTube videos, and make a test call. If you only have wheezing in one app, the problem isn't the dynamics.
• 📱 Reboot your phone: a banal rebuke often resets temporary sound driver errors.
• 🔌 Turn off Bluetooth headphones: sometimes the system "forgets" to switch back to speakers.

If you have left the wheezing behind, we’ll go deep cleaning. But remember, not all Xiaomi models support speaker cleaning software. Budget Redmis (like Redmi 9A) may not have some options available on flagships like Xiaomi 12T Pro.

Method 1: Resetting the sound settings to factory

The safest way to get the speakers back to their original quality is to reset the audio settings, which won't delete your data, but will return all the parameters of the equalizer, bass amplifier and sound profiles to default values.

Instructions:

1. Open the Settings. → Sound and vibration.
2. Scroll down and select Additional Sound Settings (some firmwares call it Advanced Settings).
3. Slip on Reset sound settings (or Reset default settings).
4. Confirm the action with a password / fingerprint, if necessary.

After reset, check the sound — often the wheezing disappears because of the amplifier settings that have gone wrong. If the problem persists, move on to more radical methods.

Make sure that Bluetooth is offline

Remember the current settings of the equalizer (photo)

Close all music applications

Check the battery level (minimum 30%)-->

Method 2: Engineering menu for diagnostics and cleaning

The hidden engineering menu (Engineer Mode) allows you to test the speakers at the hardware level and start the self-cleaning process. This method works on most Xiaomi models, but requires caution – do not change the settings unless you are sure of their purpose.

How to open the engineering menu:

1. Open the Phone app.
2. Enter the combination: ##36446337## (some models may require #4636###).
3. Select the Hardware Testing → Audio section.
4. Slip on LoudSpeaker (or Speaker for the top speaker).
5. Turn on the test signal - if the sound is clean, the problem is in the software, if the wheezing is left - in the hardware.

To start the self-cleaning:

1. In the engineering menu, go to Audio → Speaker Cleaning (the name may vary).
2. Activate the Auto Cleaning or Start Cleaning option.
3. Wait until the process is completed (it will take 10-30 seconds).

⚠️ Note: Do not change the meanings in the sections PA Gain or Volume – This can cause damage to the speaker due to too high a load.

Method 3: Cleaning through the service menu (for advanced)

If the standard methods did not help, you can use the CIT service menu (Customer Engineer Test), which is suitable for models on Qualcomm processors (Xiaomi 11T, Redmi K50, etc.).

Instructions:

1. Enter the dialer: ##248###.
2. Select Speaker Test.
3. Press Start Test – the system will check both speakers (top and bottom).
4. If the test shows an error, tap on the Clean Speaker.

After cleaning, restart the phone.This method is effective when wheezing is caused by a buildup of dust in the speaker's membrane, but does not help with mechanical damage.

Method 4: Apps for cleaning speakers – do they work?

There are hundreds of apps in the Play Market that promise "magic 1-click speaker cleaning," most of which are useless -- they just play low-frequency sounds that supposedly "punch the dust," and in practice, the effectiveness of these methods is close to zero, and some programs can even hurt.

If you want to try it, choose the proven utilities:

• 🔧 Speaker Cleaner – generates frequencies for vibration cleaning.
• 🎛️ SoundAbout – allows you to test speakers separately.
• 📊 Phone Check and Test – Comprehensive Sound Diagnostics.

⚠️ Note: Do not use applications that request super-user rights (root) for "deep cleaning" This can cause system failure or damage to the speaker due to exceeding the permissible load.

These utilities work best when paired with physical cleaning (for example, after blowing the speaker with compressed air), but remember: no application will replace mechanical cleaning if moisture or large particles of dust enter the speaker.

💡

Before using cleaning applications, reduce the volume to 50% – this will reduce the risk of damage to the speaker membrane from too powerful low-frequency signals.

What to do if the software cleaning does not help

If you've had all the wheezing left, it's probably hardware.

1. Compressed air purge: Use a compressed air can (sold in electronics stores) or a dryer at minimum power. Keep 10 cm from the speaker so as not to damage the membrane.
2. Clean with alcohol: moisten the cotton swab in isopropyl alcohol (at least 90%) and gently wipe the speaker grille. Don't press hard!
3. Moisture check: If the phone fell into the water, even a month ago, the oxidation of the contacts could cause wheezing, in which case only disassembly and cleaning with alcohol will help.
4. Call to service: if the speaker cracks at maximum volume, the membrane may have been torn, the average cost of replacing is from 1,500 to 4,000 rubles, depending on the model.

On stereo models (Xiaomi 11T, Redmi Note 11 Pro+), check both speakers separately. Often only the bottom (main) wheezes, and the top one works normally, which will help to more accurately diagnose the problem.

💡

If the wheezing only appears at maximum volume, it is a sign of wear and tear of the speaker. Software cleaning here will not help - it requires replacement or repair.

FAQ: Frequent questions about cleaning speakers on Xiaomi