How to check the speaker on Xiaomi: from tests to repair

The speakers in Xiaomi devices are one of the most vulnerable components after the battery, and sound problems can manifest themselves in many ways, from a complete lack of sound to distortion, wheezing or uneven volume. The causes of malfunctions range from software failures to physical damage — moisture, falls or wear of the membrane, POCO or Mi has its own nuances depending on the model and type of device (smartphone, smart speaker, headphones).

This article will help you check the speaker on Xiaomi without going to the service center, using both standard system tools and third-party applications. We will analyze methods for different scenarios: when the sound is lost completely, when it is distorted or when the problem manifests itself only in certain applications.

1. Quick check through built-in sound test

Any Xiaomi smartphone based on MIUI It has a hidden service test for diagnosing speakers, and it doesn't require any additional applications to be installed, and it takes less than a minute to run it:

1. Open the Phone app.
2. Enter the combination: ##4636### (some models may not work – see the alternative below).
3. Select Hardware Testing (or Hardware Testing).
4. Go to Audio or Sound.
5. Press Speaker Test – the speaker must play back the test signal.

If the code doesn’t work, try an alternative method:

• 📱 Go to Settings. → The phone.
• 🔧 Tap 5-7 times on the item Version MIUI (A notice will appear saying, “You have become a developer").
• 🔍 Return to the main settings menu, open additionally → For developers.
• 🎵 Find the option of Audio Testing or Audio Testing.

⚠️ Note: On HyperOS devices (new 2026 models), the path to the test may be different. If you don't find a partition, use the method with ###6484### - it works on most firmware.

If the speaker does not make sounds during the test, the problem may be:

• 🔊 Hardware malfunction speaker (crush of contacts, damage to the membrane).
• 🔌 Problems with audio chip or plume (often after falls).
• 📱 Software failure (solved by resetting or flashing).

2. Diagnostics through the Engineering Menu (MTK/Qualcomm)

The engineering menu is a powerful tool for deep testing of hardware components, including speakers, and the way you start depends on your device's processor:

In the engineering menu you can:

• 🔊 Check left and right speakers separately (on stereo devices).
• 📊 See signal strength (if the speaker is working but quietly).
• 🔧 Run the microphone and headphone test (for complex diagnostics).

If the speaker makes wheezing, crackling, or sound is interrupted during the test, this may indicate:

• 💧 Moisture intake (oxidation of contacts).
• 🔌 Bad contact of the plume (you need to disassemble the device).
• 🔊 Wear of the membrane (characteristic of older models).

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If the engineering menu does not open, check if access to it is disabled in the developer settings (Debugging by Debugging) USB → Allow engineering menus).

3. Testing dynamics with third-party applications

If standard tests do not give a clear result, use specialized applications that allow you to check the speaker at different frequencies, which helps to identify hidden defects.

• 📱 Phone Doctor Plus - Tests all speakers (including conversational), microphone and vibration. PASS/FAIL for each component.
• 🔊 Speaker Test – plays sounds at different frequencies (20 Hz to 20 kHz), helps to identify distortions.
• 🎵 Audio Test - stereo balance, volume and interference, suitable for diagnostics POCO F5, Redmi Note 12 and other dual-dynamic models.

How to test in Phone Doctor Plus:

1. Install the app from Google Play.
2. Start and select the Hardware Test.
3. Tap Speaker – the application will play the test sound.
4. If there is a sound but is quiet, press Volume Test to check the volume.

Advantages of third-party applications:

• 📊 More detailed diagnosis (for example, checking the frequency response - amplitude-frequency characteristics).
• 🔍 The ability to compare the sound of left and right speakers (relevant for smartphones with stereo sound).
• 📱 They even work on devices with custom firmware.

⚠️ Attention: Some applications (e.g, CPU-Z) They show the speakers in the Sensors section, but they don't test them.

4. Physical Diagnostics: What Can Be Checked Without Disassembly

If the software tests show no problems, but the sound is still missing or distorted, start a physical check.

• 🔍 Check the speaker grille for dust, dirt or mechanical damage. On Redmi Note 10 and newer models, the speaker is located at the bottom of the body.
• 💧 Check the moisture indicator (if any) – on most Xiaomi it is under the tray for the scoring of the scoring. SIM-maps (white or red indicates water intrusion).
• 🔊 Put your ear to the speaker and turn the music on at maximum volume. If you hear wheezing or gurgling, it's a sign of fluid getting in.

Next, check:

• 🔌 Headphone connector - insert and remove the headphones several times. If the sound only appears in the headphones, the problem may be in the switch (a common malfunction on the headphones). POCO X3).
• 📱 Vibration – if it works and there is no sound, the problem is more in the dynamics than the audio chip.
• 🔋 Charging: Connect the device to the network. On some models (Mi 11), the speaker can turn off when the charge is low.

If the external inspection fails, try tapping the body around the speaker with light movements, sometimes helping to temporarily restore contact with the departed plume, but this method is risky - do not make efforts to not damage the internal components.

5.Check speaker on Xiaomi smart devices

Smart speakers (Mi) AI Speaker, headphones (Mi Earphones) and watches (Mi Band) are tested differently than smartphones.

Smart speakers (Mi Home, Mi) AI Speaker)

For the diagnosis of the column:

1. Connect it to the network and wait for a voice greeting.
2. Say "Sound test" or "Check speaker."
3. If the column does not respond, reset it to factory settings (hold the reset button for 10 seconds).

Wireless headphones (Mi Earphones, Redmi Buds)

Problems with sound in headphones are often associated with:

• 🔋 Discharged battery (charge the case).
• 📶 Poor Bluetooth connection (reconnect the device).
• 🔊 Contamination of speakers (clean the mesh with a soft brush).

To check the headphones:

1. Connect them to another device (such as a PC).
2. Play the test sound (you can use audiocheck.net).
3. If there's no sound in both headphones, the problem is with the Mi Earphones themselves, and if there's only sound in one, the speaker or the plume is faulty.

Smart watches and fitness bracelets (Mi Band, Mi Watch)

Speakers in Mi Band 7 and similar devices are rarely used (e.g. for alarms or notifications) to check them:

• 🔔 Set an alarm and wait for it to go off.
• 📳 Connect the watch to the Mi Fitness app and send a voice notification.
• 🔊 If there is no sound, update the firmware through the official application.

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On Xiaomi smart devices, 80 percent of audio problems are solved by resetting settings or updating firmware. Physical speaker malfunctions are less common than software failures.

6 When to Disassemble: Signs of Serious Failure

If all previous methods have failed and the speaker is still not working, the problem may lie inside the device.

• 💧 Fluid intrusion – even if the moisture indicator did not work, corrosion could damage the contacts.
• 🔌 A broken plume is a common problem after falls (especially in the case of a POCO M3 redmi 9A).
• 🔊 Damaged membrane - if there is a sound, but is severely distorted (wheezing, rattling).
• 📱 Faulty audio chip – there is no sound in the speaker or headphones.

What you can do on your own:

• 🔧 Carefully disassemble the device (use plastic shoulder blades and a hair dryer to soften the glue).
• 🔍 Check the speaker plume - it should be tightly connected to the motherboard.
• 🧹 Clean the contacts with alcohol (if there are traces of oxidation).

If you are not sure about your skills, it is better to contact the service. The cost of replacing the speaker on Xiaomi varies from 500 to 2000 rubles depending on the model. POCO repairs are usually cheaper than on flagships (Mi 13, Mix 4).

⚠️ Attention: On devices with protection IP53/IP68 (for example, Xiaomi 12T) Disassembly can break the leakage, and after self-repair, the water protection is guaranteed to be lost.

7.Software solutions: if the speaker is working, but the sound is lost

Sometimes the speaker is working, but the sound is lost due to software conflicts.

• 📱 Do Not Disturb Mode – Turn it off in the notification curtain.
• 🔊 Sound settings - go to Settings → Check to see if the system sound is switched off.
• 🎵 App permissions – some programs (like YouTube) can block sound. → Annexes → Permits → Microphone/Sound.
• 🔄 Resetting sound settings - in Settings → System system → Resetting settings → Reset the sound settings.

If the sound is only lost in certain apps (like TikTok or Instagram), try:

1. Clear the app cache (Settings → Apps → [Title] → Memory → Clear the cache).
2. Update the application to the latest version.
3. Reinstall it.

On devices with HyperOS (2026), it can help to turn off spatial sound:

1. Go to Settings → Sound → Sound Effects.
2. Turn off Spatial Sound or Dolby Atmos.

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If the sound disappears after the update MIUI/HyperOS, A rollback to a previous firmware version often solves the problem.Use Fastboot or Recovery for a downgrade.

FAQ: Frequent questions about checking Xiaomi speakers