How to clean the speaker Xiaomi Redmi Note 8: from dust, dirt and wheezing

Xiaomi Redmi Note 8 is one of the most popular smartphones in the budget segment, but over time, even he faces a typical problem: speakers start wheezing, the sound becomes muffled or disappears altogether, the reason for this is dust, fibers from pockets, fluid leaks or accumulated dirt in the grille, 80% of the time the problem is solved by self-cleaning without going to the service center.

In this article, we'll look at proven ways to clean the Redmi Note 8 speakers (including the top talk and bottom media), and tips on how to avoid recontamination. We'll look at the simplest (toothpicks + scotch) to the most advanced (ultrasonic bath), and explain when cleaning won't help and it's time to carry the phone for repair. All instructions are tailored to a particular model with design features in mind.

Signs of contaminated speakers: when it's time to clean

Redmi Note 8 speakers are not protected by IP68, so dust and moisture penetrate much more easily than in the flagship models.

• 🔊 The sound became quieter, even at maximum volume (especially noticeable in games or when watching videos).
• 🎵 Wheezing or crackling appeared when playing low frequencies (for example, in bass songs).
• 📞 The interlocutor does not hear you during the call (contaminated upper conversational speaker).
• 💧 After getting moisture, the sound is distorted or disappears completely (even after drying).
• 🔍 Visible dirt or dust in the speaker grille (can be viewed with a flashlight).

If one of the items matches, it's time to start cleaning. But first, make sure that the problem is not a software failure: check the volume settings (Settings → Sound), restart the phone and test the sound on another audio file. If symptoms persist, cleaning is mandatory.

Anatomy of the speakers Redmi Note 8: what and where to clean

Redmi Note 8 is equipped with two speakers:

1. The top one is above the screen, responsible for the sound during calls, and is more often clogged with dust due to proximity to the ear.
2. Lower (multimedia) - is on the lower edge next to the USB-C connector. Suffers from dirt in pockets and fluid ingress.

Both speakers are structurally protected by a metal lattice, but its cells are large enough (about 0.3 mm), so dust and small debris penetrate inside. The main danger is not the dirt itself, but its compaction over time, which blocks the speaker membrane.

Important: the lower speaker of the Redmi Note 8 is combined with a microphone, so you can not use liquids or aggressive methods when cleaning - this can damage the microphone membrane.

Method 1: Dry brushing with toothpick and scotch (the safest)

This method is suitable for removing surface dust and fibers without risking damage to the speaker.

• 🪥 Plastic or wooden toothpick (not metallic!).
• 🎨 Scotch (preferably paint or stationery, 1-2 cm wide).
• 🔦 Lantern (for illumination).

Step-by-step:

1. Turn off your phone to avoid accidental tapping.
2. Bring the flashlight to the speaker grille at an angle - this will help to see the accumulation of dirt.
3. Carefully walk the toothpick through the cells of the grates, slightly pressing. Move from center to edge.
4. Cut a piece of tape 3-4 cm long, fold it sticky side outwards and press it against the grille. Repeat 2-3 times, the scotch will collect fine dust.
5. Blow the speaker with your mouth (not too much!) or use a spray of compressed air.

Turn off the phone.

Prepare a toothpick and scotch

Light the grid with a flashlight

Do not use metal objects-->

This removes up to 70 percent of the contaminants, but it doesn't work if the dirt gets deep inside the speaker or the membrane is stuck with moisture, and more radical methods are needed.

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If the toothpick doesn't go into the lattice cells, wrap the tip of the lattice in a soft cloth (like a microfiber) and moisten it in alcohol, which will help dissolve the potassium deposits.

Method 2: Vacuum cleaner or compressed air canister

For deep cleaning without disassembly, a vacuum cleaner with a narrow nozzle or a can of compressed air (for example, for cleaning keyboards) is suitable.

Instructions for vacuum cleaner:

1. Use the nozzle with the narrowest nozzle (for example, for furniture).
2. Set the minimum suction power to avoid damaging the membrane.
3. Bring the nozzle to the speaker grille at a distance of 1-2 mm and hold 5-10 seconds.
4. Repeat for both speakers.

Instructions for compressed air canister:

1. Keep the canister vertically, at a distance of 3-5 cm from the speaker.
2. With short presses (1-2 seconds) blow the grille at different angles.
3. Do not tilt the can - this can lead to leakage of liquid!

⚠️ Warning: Never use a home vacuum cleaner at full capacity - this can tear the speaker membrane. Also avoid cans of freon (for example, for cleaning computers), as its residue can damage plastic parts.

This method removes up to 85% of dust, but is useless against moisture or stuck dirt. If the sound is not restored after cleaning, move on to the following methods.

Method 3: Cleaning with alcohol or hydrogen peroxide (for wet contaminants)

If the speaker wheezes after getting a liquid or the sound becomes muffled due to potassium fat deposits, treatment with isopropyl alcohol (concentration 70-90%) or hydrogen peroxide (3%) will help. These liquids evaporate without a residue and do not damage the electronics.

What you need:

• 🧴 Isopropyl alcohol or hydrogen peroxide.
• 🧻 Cotton swabs (better with a plastic rod).
• 🪥 Tooth cleaning (for hard-to-reach places).

Step-by-step:

1. Turn off the phone and remove it. SIM-memory-card.
2. Moisten the cotton swab in alcohol or peroxide, then squeeze off the excess - the liquid should not drip!
3. Gently wipe the speaker grille with circular movements without pressing hard.
4. For deep cleaning, wrap the toothpick in cotton, moisten in alcohol and walk through the cells of the grille.
5. Let the phone dry for 10-15 minutes before turning on.

⚠️ Warning: Do not use vodka, cologne or other alcohol-containing liquids, which contain additives that can leave a film on the membrane. Also avoid direct liquid entering the speaker: the alcohol should evaporate from the surface of the lattice, not drain inwards.

This method is effective against moisture and fatty contaminants, but will not help if the speaker membrane is physically damaged (for example, torn or deformed).

Method 4: Ultrasonic Bath (Advanced Method)

Ultrasonic cleaning is the most effective way to remove contaminants from the speaker, but it requires partial disassembly of the phone.

• 🔇 The sound disappears completely or is distorted beyond recognition.
• 💦 The speaker was heavily exposed to moisture (for example, the phone fell into the water).
• 🧹 Previous methods have failed to produce results.

You'll need to clean:

• 🛠️ Ultrasonic bath (you can buy an inexpensive model for jewelry).
• 🧴 Distilled water or isopropyl alcohol.
• 🔧 Plastic mediator for disassembling the phone.
• 🧲 Magnetic screwdriver (for Torx screws) T3).

Instructions:

1. Turn off your phone and remove the battery (if you are not sure about your skills, trust a specialist!).
2. Remove the back cover, disconnect the speaker plume and remove it.
3. Place the speaker in an ultrasonic bath with distilled water or alcohol for 1-2 minutes.
4. Take out the speaker, shake off the liquid and dry the dryer in cold mode for 10-15 minutes.
5. Put the phone back together.

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Ultrasonic cleaning removes up to 99% of the contaminants, including oxides and microparticles, but requires disassembling the phone. If you're not sure about your skills, you'd better go to a service center.

This method is guaranteed to restore sound, but it's only suitable for power users, and if you've never taken a smartphone apart, the risk of damaging plumes or contacts is too great.

Method 5: Software Diagnostics Before Cleaning

Before you start physical cleaning, make sure that the problem is not a software failure.

1. Check the sound settings: Settings → Sound and vibration → Volume Make sure that the volume sliders for media and calls are at their maximum.
2. Turn off features that can affect sound: Settings → Special features → Removing noise when calling
3. Test the speakers using the engineering menu: ##4636## → Audio → Audio Testing Here you can check each speaker separately.
4. Update your phone’s firmware – sometimes sound bugs are fixed in newer versions of MIUI.

If after all the checks the sound remains bad – the problem is the physical contamination of the speakers.

What not to do when cleaning the speakers Redmi Note 8

Some folk methods can irrevocably damage the dynamics, and this is strictly forbidden:

• 🚫 Blow the speaker with force – saliva contains enzymes that corrode the membrane.
• 🚫 Use needles or pins - they pierce the membrane or scratch the grille.
• 🚫 Pour alcohol or water directly into the speaker – the liquid can close the contacts.
• 🚫 Dry your phone in rice – grains of rice will clog the speaker even more.
• 🚫 Clean the speaker with wet wipes - they leave fibers and moisture.

Also, do not disassemble the phone without special tools - plastic latches Redmi Note 8 easily break when you open carelessly.

FAQ: Frequent questions about cleaning speakers