How to clean the speakers on Xiaomi without damage: from dust, water and distortion of sound

Speakers in Xiaomi smartphones and smart speakers lose sound quality over time due to dust buildup, moisture or mechanical contamination. If you notice that the music has become quieter, wheezing or distortion has appeared, the problem is most likely clogged speakers. But cleaning requires caution: wrong actions can damage the membrane or contacts.

In this article, we will discuss 5 proven ways to clean speakers on Xiaomi devices (including the Redmi Note 12, POCO X5, Mi 11 and Mi Smart Speaker speakers). You will learn which tools are safe and which are strictly forbidden, how to remove moisture after water hits, and when to contact the service center. All methods are tested on real devices and do not require disassembly.

Signs of clogged speakers: when you need to clean

Before you start cleaning, make sure that the problem is with the speakers, not the software settings.

• 🔊 Muffled sound – music and voices sound quieter than before, even at maximum volume.
• 🌀 Wheezing and crackling – especially noticeable at low frequencies (bass) or when playing voice messages.
• 💧 Distortion after contact with water – if the device falls into water or gets caught in the rain, the sound can become “bubbling".
• 🌫️ Visible dirt in the grille – in bright light, you can see a cluster of dust or fibers (especially relevant for Xiaomi speakers).

If the sound is completely lost or there is an error "Audio device not found" in the settings, the problem may be a break in the contacts or damage to the amplifier chip, in which case cleaning will not help, you need repairs.

⚠️ Warning: Don't confuse clogged speakers with software volume limits. Check the settings before cleaning: go to Settings → Sound. → Safe Volume Level and Turn Off Restrictions.

What can not be used to clean the speakers

Many folk methods can permanently damage the speakers, and here are the banned tools and substances.

Critical error: the use of metal objects (needles, pins, knives) Even a slight touch of the needle membrane of the speaker leads to rupture, after which sound can not be restored without replacing the module.

Method 1: Compressed air cleaning (the safest method)

This method is suitable for all Xiaomi models, including waterproof ones (for example, the Redmi Note 11 Pro+ 5G with IP53 certificate).

Step-by-step:

Prepare the spray (hold it vertically!)

Tilt the device at a 45° speaker downwards

With short presses (1-2 seconds) blow the grille from a distance of 5-7 cm

Repeat 2-3 times, changing the angle of inclination

Do not turn the device upside down with speakers!-->

If there is a lot of dust, after purging, gently tap on the body of the smartphone (not on the dynamics!) - this will help to knock out the remaining particles.

⚠️ Warning: Don't use a house dryer instead of compressed air! Hot stream deforms the plastic grille and membrane. Air temperature from the canister does not exceed +10°C, which is safe.

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For Xiaomi Mi Smart Speaker speakers, remove the outer mesh (it is attached to the latches) before purging. Keep the canister strictly perpendicular to the dynamics so as not to damage the tissue membrane.

Method 2: Cleaning with a soft brush (for persistent contaminants)

If the compressed air didn't help, use a brush with natural pile (for example, makeup or watercolor), which is effective for removing fibers, animal hair and sticky dirt.

How to clean:

1. Turn off the device and pull it out. SIM-card (if you clean your smartphone).
2. Carefully, without pressing, run the brush along the speaker's lattice along (not across!) lines.
3. For hard-to-reach places, use a dry toothpick wrapped in microfiber (don't touch the membrane!).
4. After cleaning, blow the speaker with compressed air to remove the remaining villi.

For Xiaomi fabric-coated speakers (such as Mi Portable Bluetooth Speaker), use a soft-pile brush and move from center to edges to avoid damaging the material.

Method 3: Removal of moisture (if the speakers "bubbling")

If a Xiaomi device gets caught in the rain or dropped in water, the sound can become muted with a characteristic "bubbling" in which case you need to dry the speakers, but not the usual way!

What to do:

• 🚫 Do not turn on the device immediately after contact with water – this will cause a short circuit.
• 📱 Get it. SIM-Card and memory card, turn off the smartphone (if it still works).
• 🌬️ Blow the speakers with compressed air (as in Method 1) to remove water droplets.
• 🔥 Place the device in a dry place with good ventilation (for example, near the fan at minimum speed).

Important: Don't use rice, silica gel, or hair dryer heating! Rice doesn't absorb moisture from the speakers, and silica gel can clog the grille. Dryer deforms plastic parts.

You can use an ultraviolet lamp to speed up the drying, if you have one at hand. 10-15 Minutes near the device — UV rays will vaporize moisture without heating. This method is especially effective for Xiaomi waterproof speakers (IPX7).

Method 4: Programmatic testing of speakers

If the sound has not recovered after cleaning, check the speakers using test codes or special applications, which will help determine whether the problem is contamination or hardware malfunction.

How to check:

1. Open the Phone app and type in the code: ##4636## Select Audio → Speaker Test and listen to the sound. If it's distorted, the speaker is clogged or damaged.
2. Install Speaker Clean (available on Google Play) which plays low-frequency signals that help shake off the dust from the membrane.
3. For Xiaomi speakers, use the official Mi Home app: go to your device settings and start the Sound Diagnostics.

If the test shows that the speaker does not produce sound at all (for example, in the Redmi 10C after a fall), the problem may be a cliff plume, in which case you need to disassemble the device.

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If the test sound is clean, but there are distortions in the music or calls, the problem is with the equalizer settings or codecs. Try resetting the sound settings to Settings → System → Resetting the settings → Resetting the sound settings.

Method 5: Deep cleaning (for power users)

If surface methods don’t work, you can try partial disassembly of the device, which is only suitable for smartphones with a removable back cover (for example, Redmi 9A or POCO M3) or speakers with a collapsible body.

What you need:

• 🔧 Plastic blade (mediator) to open the lid.
• 🧲 Magnetic screwdriver (for Torx screws) T3/T4).
• 🧴 Isopropyl alcohol (90%+ ) and-coat.
• 🔍 Lupa (to inspect contacts).

Step-by-step:

1. Turn off the device and take out all the cards.
2. Carefully tuck the back cover with a plastic spatula (start at the corner next to the speaker).
3. Unscrew the screws holding the speaker (usually 2-4 pieces).
4. Remove the speaker and wipe its contacts with a cotton disc soaked in isopropyl alcohol.
5. Blow the membrane with compressed air from the back (without touching it!).
6. Put the device back together.

⚠️ Warning: Disassembly of smartphones with adhesive body (for example, Xiaomi 13 or Redmi Note 12 Pro)+) If you don't have any special equipment, you'll damage the seals and you'll lose your water protection!

When to contact the service center

Not all problems with speakers can be solved on your own.

• 🔇 The speaker does not make sound at all (checked by the test code).
• 🔊 The sound is distorted even after cleaning and you hear a metallic grinding.
• 💦 The device fell into the water, and after drying the sound was not restored (possible corrosion of contacts).
• 🔧 You disassembled the smartphone, but after the assembly of the speaker stopped working.

The cost of replacing the speaker in Xiaomi depends on the model:

In official service centers Xiaomi before replacing the speaker must be diagnosed for damage to the audio chip. If the problem is in it, repair will cost more (from 3000 to 6000 rubles).

FAQ: Frequent questions about cleaning Xiaomi speakers