Cleaning the top speaker on Xiaomi Redmi Note 8T: 5 safe ways to return clean sound

The top speaker on the Xiaomi Redmi Note 8T is one of the most vulnerable parts of the smartphone. Over time, dust, pocket pile and microparticles of dirt clog the grille, worsening the sound quality during calls and media playback. If you notice that the interlocutor has become worse hear your voice and the music sounds muffled, the problem is precisely the dynamics. Fortunately, you can clean it yourself without resorting to expensive repairs.

This article will take a look at all the cleaning methods available, from gentle (no disassembly of the case) to deep (with partial dismantling), what tools you will need, how to avoid damage to the piezoelectric element and membrane, and also give tips for prevention. Importantly, not all methods are equally safe, so carefully assess the risks before starting work.

Signs of a clogged speaker: when it's time to clean

Before you start, make sure that the problem is pollution. On the Redmi Note 8T, the typical symptoms of a clogged top speaker are:

• 🔊 Muffled sound during conversations – the interlocutor complains that he does not hear your voice well, although the microphone works normally.
• 🎵 Distortions when playing music through the top speaker (the bottom one sounds clear).
• 📱 Wheezing or crackling at maximum volume.
• 🕳️ Visible dirt under the grille speaker (if illuminated with a flashlight).

If at least 2-3 signs match, you need to clean, but first check if there are problems with software settings:

1. Open Settings → Sound and Vibration → Sound Quality and make sure that the “Voice Amplifier” or “Adaptive Sound” mode is not activated.
2. Try playing the test sound through the engineering menu: dial ##4636## → Audio → Built-in speaker.

Preparation for cleaning: what will be needed

To safely clean the top speaker on the Redmi Note 8T, prepare the following tools and materials:

What NOT to use:

• 🚫 Metal objects (needles, knives, paper clips) – they can damage the speaker membrane.
• 🚫 Water or liquid cleaning products - getting moisture inside the body will lead to corrosion.
• 🚫 Compressed air (cylinders) – a strong flow can tear the membrane.

⚠️ Attention: If the dynamics show signs of oxidation (green coating) or the lattice is deformed, cleaning will not help - you need to replace the module.

Method 1: Dry cleaning without disassembly (the safest)

This method is suitable for regular prevention and removal of surface contaminants, it does not require disassembly of the phone and is minimally risky.

Turn off the phone and remove it. SIM-memory-card|

Bring the phone with the speaker grille down to the light source |

With a soft brush, gently brush the dust from the surface of the grille (movements from the center to the edges)|

Apply a piece of tape sticky side to the grille, slightly press and sharply tear (repeat 2-3 times)|

With a toothpick (no pressure!) put visible lumps of dirt from under the bars |

Wipe the lattice with an alcohol napkin to remove greasy traces

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For better effect, repeat the procedure 2-3 times at intervals of 5 minutes - this will allow the dust to "step away" from the walls.

1. Turn on the phone and call another number.
2. Play the video on YouTube through the top speaker (in the audio settings, select the Dynamic mode).

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If the sound is better after cleaning, but not perfect, try blowing the speaker through your own breathing (not with a strong stream!). To do this, hold the phone with a grille to your mouth and briefly exhale air (as when cleaning glasses).

Method 2: Deep cleaning with partial disassembly

If dry cleaning doesn't work, you'll have to remove the top cover of the phone, which is a riskier method, but it can get to the internal contaminants. On the Redmi Note 8T, the speaker is attached to the motherboard through a plume, so it's important not to damage it when you dismantle it.

You'll need:

• 🔧 Plastic mediator or suction cup for screen removal.
• 🔧 Thin screwdriver (cross, 1.5 mm).
• 🔧 Tweezers with curved ends.

Step-by-step algorithm:

1. Turn off the phone and remove the tray for SIM-map.
2. Heat the back cover with a hair dryer (60-70°C) for 2-3 minutes to soften the glue.
3. Insert the mediator into the gap between the lid and the body (start at the bottom corner) and gently tuck the lid.
4. Unscrew 5 screws fixing the metal plate over the speaker (they are marked with red dots in the photo below).
5. Remove the plate and remove visible dirt from the speaker with tweezers.
6. Collect the phone in reverse order, making sure all plumes are tightly connected.

⚠️ Warning: If the phone doesn't turn on after disassembly, check: Battery connection (the train could have gone off). Contact integrity speaker (they should be clean, without oxidation). Don't force when you build it. - Redmi Note 8T has fragile latches on the body.

Method 3: Cleaning with sticky tape (to remove pile)

This method is particularly effective if the speaker is trapped in fabric fibers (for example, after wearing the phone in your jeans pocket), the sticky tape acts as a magnet for fine debris.

Instructions:

1. Cut a strip of scotch 5-7 mm wide and 3-4 cm long.
2. Fold it with sticky sides outside (to make a "two-way" tape).
3. Carefully slide the folded tape under the speaker grille and run back and forth 3-4 times.
4. Check the tape - it should remain pile and dust.

For best results, use paint tape - it is less aggressive and leaves no trace of glue. If the pile is not removed, try to slightly moisten the tape with alcohol (but do not drip alcohol directly on the speaker!).

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Sticky tape is the only way to remove the pile that's stuck between the grate and the membrane. Other methods (purging, brush) are powerless here.

Prevention: How to protect the speaker from pollution

To avoid cleaning the speaker every 2-3 months, follow the following simple rules:

• 📱 Carry your phone in a cover with the top closed (such as bumpers with high sides).
• 🧹 Regularly clean your clothes pockets from garbage and crumbs.
• 🚿 Avoid using your phone in dusty spaces (construction sites, workshops).
• 🔄 Once a week, blow the speaker with your own breath (as described in Method 1).

If you're outdoors a lot, consider buying a speaker protective film that sticks over the grille and traps up to 90 percent of the dust, and just choose a perforated film to keep the sound from getting worse.

The Redmi Note 8T has a design feature: the top speaker is located close to the edge of the body, so it clogs up faster than other Xiaomi models. If you notice that the sound deteriorates more than once every 4-5 months, that's fine - just repeat the cleaning.

Frequent Mistakes and How to Avoid Them

Even with a careful cleaning, users often make mistakes that cause the speaker to break.

If you are not sure about your skills, it is better to contact the service.The cost of cleaning the speaker in the workshop is from 500 to 1000 rubles, which is cheaper than replacing the entire module (1500-2500 rubles).

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Before cleaning, back up your data! In rare cases, when disassembling the phone, you may reset your settings (for example, if the battery plume departs).

FAQ: Answers to Frequent Questions