How to Clean the Speaker on Xiaomi Mi 8T: dust-to-water damage

Xiaomi Mi 8T — One of the brand's most popular smartphones, even though it's not immune to the problem of clogged speakers, the sound gets quieter over time, wheezing or distortion, especially after getting moisture or prolonged use in dusty conditions. The reason most often lies in the accumulation of debris in the speaker grille or under the membrane.

In this article, we will discuss 5 proven methods of cleaning speakers - from simple (using tape or toothpicks) to advanced (ultrasonic bath or disassembly module). 8T, We will also tell you how to detect a hardware malfunction (for example, damage to the membrane) and when to contact the service.

Important: Xiaomi Mi speakers 8T They have a unique dual-grating design (the top and bottom speakers differ in cell size), which means that cleaning methods suitable for other models (such as the Mi 9 or Redmi Note) may not work or even exacerbate the problem. 8T.

The reasons for the clogging of speakers on Xiaomi Mi 8T

Smartphone speakers get clogged for a reason, but it's driven by specific factors. 8T The problem most often arises from:

• 🌫️ Dust and small debris — gets through the grid when carrying a phone in your pocket or bag, especially for users working on a construction site or in dusty spaces.
• 💧 Moisture and condensation – even if the phone does not sink, bath water vapors or rainy weather can settle on the membrane, leaving a plaque.
• 🍟 Fat and sticky particles – remnants from food, hand cream or cosmetics clog the cells of the lattice, forming a film.
• 🔊 Design features - lower speaker Mi 8T near-connector USB-C, where often gets dirt when charging.

According to statistics of service centers, 80% of complaints about the “silent sound” on Mi 8T It's a simple process of cleaning the speakers, and only 20 percent of the time is because the speaker or the audio chip malfunctions, which means you're very likely to be able to turn back the volume yourself.

⚠️ Attention: If the sound is completely gone (not even a slight noise), and the cleaning did not help - the problem may be in the disconnected plume or burnt-out amplifier.

How to check if the speaker is clogged on Xiaomi Mi 8T

Before cleaning, make sure that the problem is the blockage.

1. Open the Phone app and dial ##4636##.
2. Select the Testing of Equipment → Audio.
3. Test both the speakers (top and bottom) separately.

Signs of clogging:

• 🔇 It sounds, but it's muted or wheezing.
• 🎵 Music and voice messages sound normal, and calls are quiet.
• 📱 Putting your ear to the speaker, you hear crackling or “bubbling".

If the sound is completely absent or distorted beyond recognition, it can be a hardware failure. 8T often fails the lower speaker due to oxidation of contacts after moisture.

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Before the test, turn off Bluetooth headphones – they can automatically redirect sound and you won’t hear any problems with speakers.

Method 1: Scotch speaker cleaning (the safest method)

This method is suitable for removing surface dust and fine debris, it does not require disassembly and is safe even for beginners.

You'll need:

• 📏 Stationery Scotch (Wide 18–24 mm).
• 🔦 Lights (you can use flashlights on another phone).
• 🧴 Alcohol wipes (for degreasing the lattice).

Step-by-step:

1. Turn off the phone and let it cool (if it was in use).
2. Cut off a long piece of scotch ~5 see fold it sticky side out," loop".
3. Put tape on the speaker grille and press it gently. Don't push it hard -- just a little touch is enough.
4. Take a quick move to tear off the tape. Repeat 3-4 times for each speaker.
5. Check the result by turning on the music at maximum volume.

This method is good at removing tissue fibers, dust and small particles, but is powerless against fat or moisture under the membrane. If the sound hasn't improved after cleaning, move on to the next method.

Turn off the phone.

Wipe the speaker grille with an alcohol napkin.

Cut off scotch 18-24 mm wide

Put the tape "loop" sticky side out-->

Method 2: Toothpick or soft brush for deep cleaning

If the tape didn't work, it means that the debris has accumulated deeper, under the bars or on the membrane, and in this case, a more "invasive" method would be needed.

⚠️ Warning: Do not use metal objects (needles, pins) - they can scratch the membrane or damage the grille.

Instructions:

1. Light the speaker grille with a flashlight at an angle of 45°. This will help you see the dirt clumps.
2. Carefully walk the toothpick through the cells of the grates, slightly pressing.
3. For the lower speaker (near the USB-C) Use a brush - there are smaller cells, and the toothpick may not fit through.
4. After cleaning, blow the speaker with dry air (you can use a can of compressed air for keyboards).

If you feel resistance when brushing with a toothpick, don’t push harder, which may mean that the debris is stuck on the membrane and needs to be soaked (see Method 4).

Method 3: Washing the speakers with alcohol (for moisture and fat)

If the speakers wheez after water is injected or the sound becomes deaf due to the greasy coating, conventional mechanical cleaning will not help. Here you need a solvent - for example, isopropyl alcohol (concentration 70% or higher).

⚠️ Warning: Never pour alcohol directly on the speaker! This can damage the membrane or penetrate the body. Use only a cotton swab lightly moistened with alcohol.

Step-by-step:

1. Turn off the phone and remove it. SIM-card (in case the alcohol leaks inside).
2. Moisten the cotton swab in alcohol and squeeze it so it is wet but not dripping.
3. Gently wipe the speaker grille with circular motions without pressing.
4. Let the phone dry for at least 30 minutes before turning on.
5. If the sound has not recovered, repeat the procedure or proceed to ultrasonic cleaning.

Alcohol is effective against:

• 💦 Moisture and condensate (evaporates residual moisture).
• 🍳 Fat and sticky deposits (dissolves them).
• 🦠 Mold (disinfects).

Method 4: Ultrasonic cleaning (advanced method)

An ultrasonic bath is the most effective way to remove deep dirt, fat and moisture from the speaker without disassembling the phone, but it requires caution: improper use can damage the membrane.

What you need:

• 🛁 Ultrasonic bath (you can buy inexpensive on AliExpress or borrow from friends).
• 💧 Distilled water or alcohol (70% and higher).
• 🧴 Silicone lubricant (optional, to protect rubber seals).

Instructions:

1. Turn off your phone and remove the battery (if you can disassemble the Mi). 8T). If not, skip this step, but the risk of damage is higher.
2. Pour distilled water or alcohol into the bath (liquid level is 1-2 cm).
3. Load only the bottom of the phone (where the speaker is) for 10-15 seconds. Don't put the phone down completely!
4. Turn on ultrasound at minimum power (20-30 watts).
5. After the procedure, dry the phone thoroughly with a hair dryer (cold air!) or leave it in rice for 24 hours.

⚠️ Critical moments:

• 🚫 Do not use regular tap water – it contains minerals that may remain on the membrane.
• ⏱️ Do not keep your phone in the bath for more than 20 seconds at a time.
• 🔋 If the battery is not removed, do not turn on ultrasound at full power - this can damage the battery.

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Ultrasound removes up to 95 percent of the contaminants, but it requires care, and if you're not sure about your skills, you better contact the service.

Method 5: Disassembling the phone for deep cleaning (extreme method)

If none of the previous methods worked, the last option is to take the phone apart and clean the speaker from the inside, which is risky, but sometimes necessary.

⚠️ Attention: Disassembly Xiaomi Mi 8T demand:

• 🛠️ Screwdriver kit (Torx) T3, T4, cross-section).
• 🧲 Screen-take-down suction cups.
• 🔥 Fryer (to soften glue).
• 🤲 Experience with electronics (or at least mindfulness).

Step-by-step instruction (briefly):

1. Unplug the back cover by heating it with a hair dryer at the edges.
2. Disconnect the battery plume (required!).
3. Remove the metal plate covering the speaker.
4. Carefully remove the speaker and clean it with a soft brush and alcohol.
5. Check the integrity of the membrane – if it is torn, the speaker needs to be replaced.

📌 Important nuance: On the Mi 8T The bottom speaker is glued to the body, and to remove it, you need to heat the hair dryer attachment (temperature). ~60°C) and apply a plastic blade. Metal tools may not be used!

If you've never taken a phone apart, you better not take a risk.

• 🔋 Loss of tightness (dust and moisture will penetrate faster).
• 📶 Problems with antenna (the speaker is connected to the plume) NFC/antennae).
• 💥 Damage to the battery (with careless disconnection of the plume).

What do you do if nothing helps?

If the sound is still quiet or distorted after all the manipulations, the following problems may occur:

On Xiaomi Mi. 8T most often the lower speaker fails - it is more vulnerable due to its proximity to the connector USB-C. If you are sure that it is the problem, you can order a replacement of the lower module (article: 1804000006 (~1000–1200 ₽), as it requires the welding of the plume.

If you're going to go to the service, you should go to the workshops that have experience with Xiaomi. 8T They have a non-standard mount, and not all masters know how to replace them correctly without the risk of damage. NFC-antenna.

FAQ: Frequent questions about cleaning the Xiaomi Mi speakers 8T