How to Clean the Speaker on Xiaomi Mi 8 Pro: From Dust to Complex Pollution

Xiaomi Mi 8 Pro is the flagship of 2018, which is still relevant due to the powerful hardware and high-quality assembly. But even such reliable devices over time, a typical problem arises: speakers begin to wheez, distort sound or completely stop producing low frequencies. In 90% of cases, it is not the breakdown that is to blame, but the banal pollution - dust, villi, particles of skin or moisture that fall into the grille and membrane.

Cleaning the speakers does not require disassembling the smartphone and can be done at home in 10 to 30 minutes. However, it is important to understand that improper actions (such as the use of sharp objects or liquids) can irreversibly damage the acoustic system, especially if it is a top speaker integrated into the hearing aid. In this article, proven methods adapted specifically to the design of the Mi 8 Pro, taking into account its vulnerabilities.

Signs of a polluted speaker: when you need to clean

Before you start your tool, make sure that the problem is really the pollution.

• 🔊 The sound became quieter, especially at low frequencies (bass "disappears»).
• 🎵 Wheezing or crackling when playing music/calls.
• 💧 After getting moisture, the speaker “bubbles” or is completely silent (even after drying).
• 📱 Vibration of the body with loud music is a sign that the membrane is clogged and cannot freely oscillate.

If the symptoms are only in the lower dynamics (multimedia), the problem is likely dust. When distortion is heard from the upper speaker (conversation), not only pollution can be to blame, but also oxidation of contacts after moisture is ingested - here cleaning may not help, and you will need a diagnosis in the service.

⚠️ Warning: If the speaker stopped working after a fall or impact, cleaning will not help - most likely, the membrane is damaged or the contacts are soldered off.

Anatomy of the Xiaomi Mi 8 Pro speakers: what can and can not touch

The Mi 8 Pro is equipped with two speakers:

1. The top one is above the screen, it's responsible for the voice of the person you're talking to when you're calling, and it has a small metal mesh that's easily clogged with dust.
2. Lower (multimedia) - is located on the end of the body next to the connector USB-C. More powerful, but vulnerable to moisture and mechanical damage.

Both dynamics are structurally protected:

• 🛡️ Grid - prevents the entry of large particles, but does not save from fine dust.
• 💧 Hydrophobic coating - the lower speaker (but not a panacea for moisture!).
• 🔧 Adhesive fastening - speakers are glued to the body, so disassembly without skills is fraught with damage to plumes.

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Before cleaning, check if the microphone hole is clogged (near the top speaker). Often users confuse problems with the microphone and speaker. For the test, write down the voice memo - if the sound is clear, the microphone is fine.

Method 1: Dry brushing with a toothpick or soft brush

The safest method that is suitable for regular prevention is:

• 🪥 Plastic or wooden toothpick (not metallic!).
• 🖌️ Soft art brush (for example, for watercolor).
• 🔦 Lantern (for illumination).

Step-by-step:

1. Turn off your smartphone and put it on a flat surface.
2. Hold the flashlight to the speaker at an angle - this will help to see the accumulation of dust.
3. Carefully, without pressing, swipe your toothpick along the grille, collecting dirt. Movements should be parallel to the holes, not perpendicular!
4. For hard-to-reach places, use a brush - its villi will penetrate deeper without damaging the net.

Use metal objects (needles, pins)

Pressing on the net is deforming it.

Vacuum the speaker (risk of static discharge)

Clean the switched-on smartphone-->

This method removes up to 70% of surface dust, but is powerless against deep contamination. If the sound has not improved after cleaning, then proceed to the following methods.

Method 2: Cleaning with Scotch (for persistent contaminants)

The method is suitable if the dynamics have accumulated villi, hair or sticky dirt. Use paint scotch (less sticky) or regular stationery, but with caution.

Algorithm:

1. Cut a strip of tape 5-7 mm wide and 3-4 cm long.
2. Apply it to the speaker grille with the adhesive side down.
3. Then, put it down and move it away.
4. Repeat 2-3 times, each time using a new piece of scotch.

The method is 80-90% effective for removing fibrous contaminants, but it won't work if the dirt is stuck inside the speaker or mixed with moisture.

⚠️ Warning: Do not use tape or double-sided tape - their adhesive layer can remain on the mesh and aggravate the problem. Also avoid fibrous-based tape (such as reinforced) as it can leave the pile.

Method 3: Ultrasonic cleaning (for power users)

Ultrasonic bath is a professional method used in service centers, and can be repeated at home using an ultrasonic air humidifier or a special mini-bath (cost from 1,500%). ₽).

Advantages of the method:

• 🧼 Removes contaminants at the molecular level, including dust inside the membrane.
• 💧 Safe for electronics (when done correctly).
• 🔄 Restores up to 95% of the original volume.

Step-by-step:

1. Take it out of your smartphone. SIM-memory-card.
2. Place the device in a sealed package, leaving the speakers open (for example, cut through the holes and tape them with tape, except for the speaker zone).
3. Pour distilled water (not tap water!) into the ultrasonic bath at a temperature of 30-35°C.
4. Immerse the smartphone in water so that the speakers are underwater, but not deeper than 1 cm.
5. Turn on ultrasound for 3-5 minutes (no longer!).
6. Take out the device, shake off the water and dry the dryer in cold mode for 10-15 minutes.

💡

Ultrasonic cleaning is the only way to return sound if the speaker bubbles after moisture has been corroded, but the method requires care: when diving deeper than 1 cm, the risk of damage to the microphone or sensors increases 3 times.

Method 4: Special means (sprays, gels)

For deep cleaning, you can use professional means:

• 🧴 Spray for cleaning electronics (for example, WD-40 Specialist Contact Cleaner).
• 💧 Gel for cleaning speakers (for example, DeoxIT D-Series).
• 🧼 Isopropyl alcohol 90%+ (but not ethyl!).

How to use:

1. Apply the product to the cotton swab (not on the speaker itself!).
2. Gently wipe the grille, avoiding liquid getting inside.
3. For sprays, spray at a distance of 10-15 cm with short presses (1-2 seconds).
4. After processing, dry the smartphone for 1-2 hours in a vertical position (down speakers).

⚠️ Warning: Never use to clean speakers: - Water (even distilled) without ultrasound - it does not remove dirt, but only smears it. - Soap solution - leaves a film that attracts dust. - Acetone or solvents - destroy plastic and rubber seals.

Method 5: Software Diagnostics (Pre-Breaking)

Before you disassemble your smartphone, make sure that the problem is the pollution, not the software failure.

1. Go to Settings. → The phone. → Version. MIUI and tap 5 times on the item Core to enable the diagnostic mode.
2. Dial the dialer code: ##3644633##
3. Choose Hardware Testing → Audio → LoudSpeaker and check both speakers separately.

If the sound is clean in the test, but the problem remains in the real work, it's the software's fault.

• 🔄 Reset the sound settings: Settings → Sound. → Additionally. → Resetting settings.
• 📱 Update MIUI last-minute.
• 🎵 Disable audio processing in applications (e.g., Equalizer or Dolby Atmos).

What if nothing helps: service or self-repair?

If after all the manipulations of the speaker:

• 🔇 No sound at all;
• 🎶 It distorts sound at all frequencies;
• 💦 «It gurgles even after ultrasonic cleaning,

You will have to choose between a service center and a replacement.

To replace the speaker Mi 8 Pro will require:

• 🔧 Set of screwdrivers (cross, flat, suction cup for the screen).
• 🔥 Hair dryer or glue heating station.
• 📦 New speaker (article for lower speaker: MDY-007, top-to-bottom: MDY-008).

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