How to clean the speaker on the smartphone Xiaomi: 5 proven ways

A clogged speaker on a Xiaomi smartphone is a problem that one in three device owners encounter after 1-2 years of active use. The signs of malfunction are obvious: the sound becomes muffled, wheezing or distortion appear, and in advanced cases the speaker completely stops working. This topic is especially relevant for the Redmi Note 10/11/12, POCO X3/X4 and Mi 11/12 models, where the speaker grid is located in the bottom of the case and actively collects dust from pockets or bags.

Many users mistakenly believe that cleaning the speaker requires disassembling the phone or going to the service center. In fact, 80% of the contamination can be eliminated by yourself using improvised tools and the right equipment. The main thing is not to damage the speaker membrane and prevent moisture from entering the case. In this article, we will discuss 5 safe cleaning methods, talk about typical errors and give recommendations for prevention.

Why is Xiaomi’s speaker starting to wheez or quieter?

The causes of sound deterioration in Xiaomi speakers fall into two categories: hardware and software. The latter (such as failures in audio settings or MIUI updates) are less common, they can be diagnosed through Settings → Sound. But in 90% of cases, physical contamination is to blame:

• 🌫️ Dust and pile are the main problem, and they get through the speaker grid and settle on the membrane, blocking the membrane, and this is especially rapid if you wear your phone in your jeans pocket or next to your keys.
• 💦 Moisture and condensate. Even after a slight water intrusion (for example, in the rain), a microscopic film can remain inside the speaker, which eventually attracts dust.
• 🍟 Fat and food particles. If you use your phone often when you eat, fatty fingerprints and crumbs clog the bars.
• 🛠️ Mechanical damage: A phone impact or fall can displace the membrane or deform the speaker body, resulting in distortions of sound.

Interesting fact: in Xiaomi models with stereo speakers (such as the Redmi Note 11 Pro or POCO F4), the top speaker clogs less than the bottom speaker, since it has less contact with surfaces. However, its cleaning requires more care due to its proximity to the front camera and sensors.

How do you know if the problem is pollution?

Before you start cleaning, make sure that the cause of the bad sound is a clog, not a software failure or damage to the speaker.

1. Run the speaker test on your phone via the engineering menu: ##4636## → Select "Equipment Testing" → "Audio" → "Speaker Test" If the sound is distorted or missing - a hardware problem.
2. Check the sound in Settings → Sound → Sound quality. Turn off all effects (like Mi Sound Enhancer) and listen to music - if the wheezing is left, pollution is to blame.
3. Put a flashlight on the speaker's grille, and visible dust or pile particles are a direct signal to clean.

Critical: If the speaker doesn't make any sounds at all (even in test mode), don't try to clean it yourself, it could be a break in the contacts or a failure of the amplifier chip, in which case professional repair is required.

💡

If wheezing only occurs with loud music, try lowering the bass level in the equalizer settings, which sometimes temporarily resolves the problem before cleaning.

Method 1: Cleaning the speaker with Scotch (the safest way)

This is a method that is suitable for surface cleaning and removal of large dust particles from the speaker grille, and its advantage is the minimal risk of damage to the membrane, since you do not penetrate the body.

You'll need:

• 📏 Office tape (preferably narrow, 1-1.5 cm wide) or paint tape (less sticky).
• 🔦 Flashlight (you can use another phone flashlight).
• 🧴 Alcohol wipes (for degreasing the surface after cleaning).

Step-by-step:

1. Cut a piece of scotch 3-4 cm long.
2. Gently glue it to the speaker grille with your finger slightly pressed. Don't press it too hard!
3. Repeat the procedure 3-4 times, each time using a new piece.
4. Light the flashlight at an angle - if there are particles on the grille, repeat the cleaning.
5. Wipe the area around the speaker with an alcohol napkin to remove sticky marks.

Make sure the phone is turned off

Use only new Scotch (not used)

Do not stick tape to other holes (microphone, Type-C connector)

Check the result after each break-->

This method is effective for models with a metal mesh (for example, Redmi Note 9/10), but less effective for phones with fabric protection (as in the POCO X3 Pro), where the pile can catch on the fibers.

Method 2: Using a toothpick or soft brush

If the tape can't handle the pollution, move on to a more "deep" cleaning, which allows you to remove dust from under the bars, but requires extreme care.

What you need:

• 🪥 Toothpick (wooden or plastic) or soft art brush (size 0–2).
• 🔦 Loop or magnifying glass (optional, for accuracy).
• 💨 A compressed air canister (for example, to clean the keyboard).

How to clean:

1. Turn off the phone and put it on a flat surface.
2. If you use a toothpick, wrap its tip with a thin cloth or cotton soaked in alcohol (so as not to scratch the plastic).
3. With careful circular movements, clean the speaker grille, slightly pressing on the contaminated areas. Don't push the toothpick deeper than 1-2 mm!
4. For hard-to-reach places, use a brush - its pile will penetrate the net without damaging the membrane.
5. Complete the cleaning with short blows of compressed air (hold the spray vertically, at a distance of 5-7 cm from the phone).

⚠️ Warning: Never use metal objects (needles, pins, paper clips) — they can puncture the speaker membrane or damage the contacts. Also avoid cotton swabs: their pile often remains inside the case.

Method 3: Pulling speaker (to remove deep dust)

Compressed air is one of the most effective ways to remove dust from the inside of the speaker that a toothpick won't get to, but it requires safety precautions.

Tools:

• 💨 A compressed air canister (e.g., Kontakt Chemistry or Office Depot).
• 📱 Second phone with flashlight (for backlighting).
• 🧤 Gloves (optional so as not to leave any prints on the body).

Purge technique:

1. Keep the spray vertically (do not tilt it to avoid the liquid being ejected!).
2. Direct the jet at a 45° angle to the speaker grille, 5-7 cm distance.
3. Use short pulses (1-2 seconds) rather than prolonged blowing.
4. After purging, check the sound – if the wheezing remains, repeat the procedure or combine with other methods.

⚠️ Warning: Do not use a vacuum cleaner to clean the speaker — even at minimal power, it can damage the membrane or tear it from the mounts. Also avoid compressors (for example, for pumping wheels) — their pressure is too high.

Method 4: Cleaning dynamics with isopropyl alcohol

If the speaker is not only clogged, but also has traces of fat or moisture, a conventional mechanical cleaning may not help, in which case, using isopropyl alcohol (concentration 70-90%), it evaporates without a trace and does not damage the plastic.

Important: Never pour alcohol directly onto the speaker, which will cause fluid to enter the body and short circuit.

Step-by-step:

1. Wet a cotton cotton cotton disc or soft lilac-free fabric (such as microfiber) in alcohol. It should be wet, but not wet.
2. Gently wipe the speaker grid with circular motions.
3. To clean the cracks, use a cotton swab slightly soaked in alcohol. Press it off beforehand to remove excess fluid.
4. Let the phone dry for 10-15 minutes in an upright position (dynamically down) so that the alcohol completely evaporates.
5. After drying, blow the speaker with compressed air (as in Method 3).

Critical: If the speaker starts to sound quieter or new wheezing after cleaning with alcohol, then the alcohol has penetrated the body. Immediately turn off the phone and leave it to dry for 24 hours in a dry warm place (for example, next to the battery).

💡

Isopropyl alcohol is the only safe means of cleaning electronics, and vodka, cologne, or medical alcohol contain additives that can leave film on the contacts.

Method 5: Ultrasonic cleaning (for advanced users)

This method is suitable for deep cleaning of speakers in cases where other methods have not worked, it requires special equipment and is suitable only for users with experience in parsing equipment.

What you need:

• 🔧 A set of screwdrivers for parsing smartphones (for example, iFixit Pro Tech Toolkit).
• 🧪 Ultrasonic bath (you can buy an inexpensive model for cleaning jewelry).
• 💧 Distilled water or special liquid for ultrasonic cleaning.
• 🧲 Antistatic tweezers.

How to do the cleaning:

1. Carefully disassemble the phone by following the guide for your model (e.g. iFixit or YouTube).
2. Place the speaker in an ultrasonic bath with distilled water for 10-15 seconds. The liquid temperature is no higher than 40 ° C.
3. Remove the speaker with tweezers and let it dry in air for 1-2 hours. Do not use a hair dryer or heaters!
4. After drying, check the resistance of the speaker with a multimeter (should correspond to the nominal value for your model).
5. Set the speaker back and collect the phone.

⚠️ Attention: Ultrasonic cleaning is not suitable for speakers with adhesive membrane attachment (for example, in Redmi 9 or POCO M3). Vibration can violate the tightness. Also, do not clean waterproof speakers (models Mi 11 Ultra, Xiaomi 12S, etc.), as this will damage the protective coating.

What to do if the cleaning didn’t help?

If after all the manipulations the speaker is still wheezing or not working, the following reasons are possible:

• 🔊 Membrane damage, which can be due to impact, fall, or careless cleaning, and requires a speaker replacement.
• 🔌 Contact break, common after a phone is disassembled or a fall, diagnosed with a multimeter.
• 🛠️ The sound amplifier fails, in which case the speaker may not be working at all or may be making a quiet crack.
• 💻 Software failure. Rarely, but sometimes the problem is the firmware. Try resetting the audio settings or reflashing the phone.

If you are not sure of the reason, it is better to contact the service center.Average cost of replacing the speaker in Xiaomi:

• Redmi Note 10/11 — 800–1200 ₽;
• POCO X3/X4 — 1000–1500 ₽;
• Mi 11/12 — 1500 — 2500 ₽ (due to the complexity of parsing).

How to protect Xiaomi speaker from pollution?

To avoid repeated sound problems, follow simple guidelines:

• 📱 Use a speaker-protected case, such as models with raised edges or a special mesh.
• 🧹 Clean your pockets and bags where you carry your phone regularly, and the main sources of dust are pile from your clothes and garbage in your backpack.
• 🚿 Avoid moisture. Even if your Xiaomi has IP53 protection (like the Redmi Note 11), the speaker remains a vulnerability.
• 🎧 Use headphones or Bluetooth headsets more often, which will reduce the load on the speakers and reduce the risk of clogging.
• 🔄 Once a month, do a preventive cleaning with scotch or compressed air (even if there are no sound problems).

A tip for owners of POCO and Redmi with infrared port: do not point the phone down on soft surfaces (such as a sofa or bed).

FAQ: Frequent questions about cleaning Xiaomi speakers