Cleaning up Xiaomi’s speaker through settings: the full guide 2026

A clogged speaker on a Xiaomi smartphone is a problem that one in five users face after 1-2 years of use. Dust, pile from pockets or moisture leads to muffled sound, wheezing or no bass at all. Many people immediately carry the phone to the service, although in 70% of cases it is enough to clean the speaker programmatically - right in the MIUI settings. This procedure takes less than 5 minutes and does not require disassembly of the device.

Unlike physical cleaning (which risks damaging the membrane), the software method is completely safe. It works by using vibrational pulses to push pollution out of the grid. But there is a nuance: not all Xiaomi models support this feature directly, and on some firmware the option is hidden in the engineering menu. We will analyze all available methods, from standard to hidden, taking into account versions of MIUI 12-14 and popular models (Redmi Note 11/12, POCO X4/X5, Xiaomi 12/13).

Before you start, check if the problem is exactly the dynamics, not the sound settings?

• 🔊 Volume is not reduced to a minimum (especially in the profile "Silent mode").
• 🎧 The sound disappears only through the speaker, and in headphones/Bluetooth-The column is working normally.
• 📱 There are no active notifications on the phone about the connected external audio device.

1. Standard speaker cleaning in MIUI: where to look for the feature

Starting with MIUI 12, Xiaomi has added a built-in speaker cleaning tool that isn’t available on all models, but it’s worth checking first, hidden in the audio settings menu and works on the principle of generating low-frequency vibrations.

To find her:

1. Open the Settings. → Sound and vibration.
2. Scroll down to the Additional Settings block.
3. Select the item Clean speaker (on some firmware - Test speaker).
4. Click Start and wait for the process to complete (takes ~30 seconds).

When cleaning, the phone will make a series of clicks and hums, which is normal. Don't interrupt the process! Once complete, check the sound by playing music or video. If the wheezing is left, repeat the procedure 2-3 times at intervals of 5 minutes.

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On the POCO F4/F5 and Redmi K50 models, the option can be called Dynamic Diagnostics and can be located in the Special Opportunities → Sound Output Devices section.

2. Hidden method: cleaning through the engineering menu (for advanced)

If there is no standard feature, try activating it through the engineering menu, which works on most Xiaomi devices, but requires caution – wrong actions can reset network settings.

Instructions:

1. Open the Phone app and type in the combination: ##36446337## (some models run ##4636##).
2. Select Hardware Testing → Audio → LoudSpeaker.
3. In the list of tests, find Speaker Cleaning or Vibration Test.
4. Run the test and wait until the end (the phone will make sounds of different frequencies).

⚠️ Note: Do not change other options in the engineering menu unless you are sure of their purpose. RF Tests can disrupt mobile network.

3. Alternative methods: applications and manual cleaning

If the software methods didn’t help, consider these options:

• 📱 Cleaning apps: Utilities like Speaker Cleaner or SoundAbout generate sound waves that push dust out. APK may contain viruses.
• 🎵 Hand-blown: Use a spray of compressed air (to clean keyboards). Keep the balloon vertically 5 cm from the speaker, with short presses (no more than 2 seconds).
• 🔧 Soft bristles brush: A toothbrush or makeup brush is fine. Carefully run it over the speaker grille without pressing it.

Critical error: Never use toothpicks, needles or other sharp objects! The speaker membrane is thinner than a paper sheet - it is easy to puncture.

4.How to check if manipulation helped: Dynamic test

After cleaning, you need to evaluate the result.

1. Play a track with low frequencies (for example, bass music or a 50Hz test signal on YouTube).
2. Call your phone from another device and check the volume of the call.
3. Record a voice message and listen to it - the wheezing should disappear.

If the sound is still distorted:

• 🔄 Repeat the cleanup. 2-3 intervally 10 minute.
• 🔍 Check if the microphone hole is clogged (it is often confused with the speaker).
• 🛠️ Contact the service if the problem is hardware damage (for example, after a phone crash).

1. Software and manual cleaning was carried out

2. speaker test recorded on video (to prove the problem)

3. backup of data (in case of disassembly of the phone)

4. The cost of diagnosis (on average) 500-1000 ₽)

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5. Prevention: How to prevent re-clogging

To keep the speaker clean for longer:

• 📵 Avoid carrying your phone in pockets with pile (such as denim or wool lining).
• 🚿 Do not use your phone in the rain or in the bathroom – moisture oxidizes the contacts of the speaker.
• 🧴 Once a month, wipe the speaker grille with an alcohol napkin (do not drip the liquid directly onto the phone!).
• 🎧 Use Bluetooth headphones in dusty conditions (construction, repair).

On Xiaomi models with IP53 protection (such as the Redmi Note 12 Pro+), speakers are less vulnerable to dust, but still require maintenance. Remember: even “protected” phones are not designed to work in abrasive dust (cement, sand).

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Regular cleaning of the speaker (once every 2-3 months) extends its life by 30-40%, which is especially important for phones older than 2 years, where the membrane becomes less elastic.

6. Frequent errors and myths about cleaning speakers

There are a lot of "advice" going around the web that not only doesn't help, but it also hurts the phone.

⚠️ Attention: Never blow into the speaker with your mouth! Saliva contains acids that corrode metal elements.

• ❌ Myth 1: "You can clean the speaker with a vacuum cleaner." Reality: A household vacuum cleaner creates too much traction and can disconnect the speaker from the board.
• ❌ Myth 2: "Absolute alcohol or vodka will remove all impurities." Reality: Liquids get under the bars and leave a swelling that makes the sound worse.
• ❌ Myth 3: "The louder the music plays, the better the speaker clears." Reality: Working at maximum volume overheats the speaker coil.

Another common misconception is that resetting the settings will help bring back sound, which is not true: reset only affects the program parameters, and clogging the speaker is a physical problem.

7. Features of cleaning on popular Xiaomi models

Some Xiaomi phones have unique nuances:

• Xiaomi 13/13 Pro: Dolby Atmos speakers require separate calibration after cleaning. Go to Settings → Sound → Dolby Atmos → Reset.
• POCO X3/X4: These models often clog the second speaker (located on the top edge).
• Redmi Note 10/11: The speaker grille is mounted on the latches, and if it is blown hard, it can move away. After cleaning, check if the part is backing up.
• Black Shark: They have enhanced liquid-cooled speakers. Don't use alcohol solutions, they destroy the heat-conducting gel.

On Xiaomi Mi 11 Ultra and other flagships with a ceramic case, the speaker grille is integrated into the rear panel. Trying to remove it will lead to cracks - trust the cleaning service center.

FAQ: Answers to Frequent Questions