How to check the speaker on your Xiaomi phone: from simple tests to deep diagnostics

The sound on Xiaomi's smartphone is gone or quieter? Perhaps the problem lies in the dynamics, one of the most vulnerable components of the phone. Before you carry the device to the service center, you should check the audio system itself. 80% of the malfunctions are due to software failures, a clogged speaker or incorrect settings that are easy to fix without special tools.

In this article, you will find 7 proven diagnostic methods, from standard tests to hidden engineering codes that are used by wizards in service centers. We'll learn how to distinguish hardware from software, which applications will help identify the problem, and what to do if the speaker stops working after falling or getting moisture. POCO base MIUI Android.

1. Quickly check sound through standard functions

Start with a basic diagnosis, which will take less than a minute to rule out obvious problems, and users often confuse a speaker malfunction with a switched off sound or an activated Do Not Disturb mode.

Here's what we need to do:

• 🔊 Turn up the volume with physical buttons on the sidebar. Sometimes users accidentally reduce the sound to zero.
• 📱 Check if the Do Not Disturb mode is activated (bell icon with cross-out in the notification panel).
• 🎵 Run any audio, music, video or voice message, and if you have audio on your headphones, but not through your speaker, the problem is that it's the speaker.
• 📞 Call another phone and listen to your voice, and a muted or distorted sound may indicate damage to your microphone or speaker.

If the sound doesn't appear after this manipulation, move on to a deeper diagnosis. Note that some Xiaomi models (like the Redmi Note 10 Pro or the POCO X3 Pro) have separate speakers for conversation and media. Check both!

2. Dynamic test through engineering menu (hidden codes)

The engineering menu is a hidden settings section that lets you test the hardware components of a smartphone. There are several universal codes for Xiaomi, but their work depends on the MIUI version and the phone model.

The most effective teams:

• 📱 ##4636## - General testing (section "Audio"). Here you can check the microphone, speaker and headphones.
• 🔊 ##36446337## - Direct test of the audio system (not working on all models).
• 🎛️ ##284## - Vibration and sound test (for older versions) MIUI).

How to use the engineering menu:

1. Open the Phone app and enter one of the codes.
2. In the menu that appears, select the Audio or Loudspeaker section.
3. Press Start Test – the phone will play the test sound.
4. If there is no sound, but the indicator on the screen shows playback - the speaker is faulty.

Close all background applications

Connect your phone to charge (some models don’t start the test when it’s low charge)

Make sure the headphones are not connected.

Write down the test results (if the sound is intermittent, distorted, etc.)

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⚠️ Warning: Do not change other settings in the engineering menu unless you are sure of their purpose. Incorrect settings can cause sensors or communication to fail.

3. Testing dynamics with third-party applications

If standard methods fail, use specialized utilities that allow you to test the speaker at different frequencies, detect distortions and compare the sound with the reference.

Top.-3 diagnostics:

How to run the test:

1. Install one of the applications and open it.
2. Select the Speaker Test or Audio Test section.
3. Follow the instructions on the screen. You usually need to confirm if you hear the sound.
4. Pay attention to the frequency response graph – dips at certain frequencies indicate damage to the speaker.

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If the app shows a "No sound detected" error, try restarting the phone and repeating the test. Sometimes the system blocks access to the audio due to background process.

4. Physical Diagnostics: What Can Be Checked Without Disassembly

If software tests show no problems, but the sound is still missing or distorted, check your phone for physical damage.

• 💦 Moisture in the speaker (even after a "successful" drying, oxides may remain).
• 🧹 Clogging of the protective net with dust or debris.
• 💥 Mechanical damage after falling (detachment of contacts, cracks in the membrane).

How to view the speaker:

1. Visual inspection: Hold your phone to a bright light and inspect the speaker grid, and visible dust, moisture, or deformation is a reason to clean.
2. Moisture check: If the phone fell into the water, even if it turned on, moisture could remain inside.
3. Vibration test: Put your phone on a flat surface and turn the music on at maximum volume. If the body vibrates but there's no sound, the speaker is locked or disconnected.

⚠️ Warning: Do not try to clean the speaker with sharp objects (toothpicks, needles) - this can damage the membrane. Use a soft brush or compressed air (a canister for cleaning equipment).

5. Check contacts and plume speaker (for power users)

If you're confident in your skills, you can try to diagnose the hardware without completely disassembling it.

• 🔧 A set of screwdrivers for Xiaomi (usually) T3, T4).
• 🧲 Plastic blade for opening the body.
• 🔍 Loop or flashlight for contact inspection.

Step-by-step:

1. Turn off the phone and remove the back cover (on models with a removable battery - remove it).
2. Find the plume that goes to the speaker, which is usually located at the bottom of the board and is labeled SPK or Speaker.
3. Check if the plume fits tightly to the connector. If the contact is weak, press it gently.
4. Check the plume for overbending, scuffing, or oxidation. A damaged plume is a common cause of no sound.

⚠️ Attention: If you've never taken a phone apart, you'd better not take any risks. Mishandling the plumes can cause contact breaks or damage to the board.

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If you press the body in the speaker area, the sound appears or changes, the problem is poor contact of the plume or speaker with the board, and this is one of the few cases where physical exposure helps diagnose a malfunction.

6.Diagnostics via ADB (for advanced users)

If standard methods do not help, and you do not want to disassemble the phone, you can use Android Debug Bridge (ADB) – a debugging tool that allows you to send commands directly to the system.

How to check the speaker through ADB:

1. Turn on Developer Mode on your phone: go to Settings → About Phone and click on MIUI Version 7 times.
2. Return to Settings → Additional → For developers and activate Debugging over USB.
3. Connect your phone to your computer and install ADB Tools.
4. In the command line, type: adb shell media volume --stream 3 --set 15 adb shell input keyevent 82 This command will enable the playback of the test sound at maximum volume.

If you don't have a sound after you run the command, but there are no errors in the ADB logs, the problem is definitely the hardware. If you have errors like AudioFlinger couldn't create track, it indicates that the audio driver is out of order.

7.When to contact the service center: signs of serious breakdown

Not all problems can be solved on their own, but here are the signs that you should consult a specialist:

• 🔇 Complete absence of sound in all modes (calls, music, notifications), even after resetting settings.
• 🔊 A distorted sound with wheezing or crackling that does not disappear after cleaning.
• 💥 The phone fell from a height or was subjected to severe vibration (the risk of disconnecting the speaker from the board).
• 💦 The ingestion of liquid with subsequent oxidation of contacts (seen by the green plaque on the board).
• 🔧 The independent disassembly did not give results, but you are sure that the problem is in the dynamics.

The cost of repairing a speaker in Xiaomi varies from 800 to 2500 rubles depending on the model and type of breakdown.

• Replace the speaker (if the membrane is torn or the contacts are oxidized).
• Cleaning and soldering the plume (if the problem is contacts).
• Replacement of the audio chip (in rare cases when the entire audio system is not working).

Before visiting the service, make a backup of the data - sometimes a complete reset is required for repairs.

FAQ: Frequent questions about Xiaomi speakers