How to check the speaker on the Xiaomi phone: full instructions with tests and tips

If your Xiaomi smartphone suddenly stops playing sound, makes wheezing or runs on only one speaker, take it to the service center. In 70% of cases, the problem is solved yourself - it is enough to correctly diagnose a malfunction. This article will help you understand how to check speakers on Redmi, POCO or Mi without special tools using built-in functions, third-party applications and even hidden engineering menus.

We'll look at all the different methods we can use, from basic checks to professional tests that service machiners use, how to tell a software failure from a physical failure, which Xiaomi models are most likely to suffer from sound problems (spoiler: this is Redmi Note 10 Pro and POCO X3 Pro), and what to do if the speaker is working but the sound is distorted. And at the end of this article, you'll find an interactive survey to share what sound problem you've encountered!

1. Quick check: exclude obvious causes

Before you go into the diagnostics, make sure that the problem is not the trivial settings, and 30 percent of the time, users turn off the sound themselves or activate the modes that block playback.

Here's what you need to do first:

• 🔊 Check the volume slider -- press the physical volume button and make sure it's not at zero. 9A) The slider may be reset after rebooting.
• 🔔 Turn off Do Not Disturb mode - swipe down from the top edge of the screen and check the bell icon. MIUI 14+ This mode can block all sounds, including media.

If you don't have a sound after this manipulation, then move on to the next step, and pay special attention to the headphone item -- if the sound is only in the headphones, it almost always indicates a physical malfunction of the speaker or the contacts on the motherboard.

⚠️ Attention: On models POCO F3 Xiaomi 11T Pro after updating to MIUI 13.0.5+ There's a bug where the speakers are turned off after you've connected Bluetooth devices. → Connections → Resetting Wi-Fi, Mobile Network and Bluetooth.

2. built-in speaker test in MIUI

Xiaomi hides a tool in MIUI firmware to diagnose hardware components, including speakers, which allows you to test both speakers (top and bottom) separately, as well as a microphone and vibrator.

To launch it:

1. Open the Phone app.
2. Enter the combination: ##4636### (on some models it may not work – see the alternative below).
3. Select Hardware Testing (or Hardware Testing).
4. Press Audio → Loud Speaker (Loud Speaker).

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

• Go to Settings. → The phone.
• Tap 5 times on the item MIUI version (the message will appear "You became a developer").
• Back to Settings → Additionally. → For developers.
• Activate Equipment Diagnostics and run the test.

In the test, you'll hear sound from the top speaker (conversational speaker) and then the bottom speaker (multimedia speaker), and if one of them is silent, that's the problem. On stereo models (e.g., Xiaomi 12 Pro), the test will check both channels.

Make sure there are no physical damage (cracks, dents)

Check the speaker grid for dust/mud clogging

Try to play the sound through another application (YouTube, Spotify)

Reset the sound settings in Settings → Sound → Reset

-->

3. Check through the engineering menu (for advanced)

If the standard test failed, you can use the Engineering Mode, which provides advanced diagnostic tools, which is suitable for Qualcomm models (most Redmi and POCO).

Instructions:

1. Open the Phone app.
2. Enter the code ##36446337## (or #364463## for older models).
3. Go to the Hardware Testing → Audio section.
4. Select LoudSpeaker Mode and run the test.

In the engineering menu you will see additional parameters:

• 📊 Volume – Volume level (must be 100% for the test).
• 🔊 Speaker Type – Speaker type (e.g. Handset for conversational, Loudspeaker for multimedia).
• 🎛️ Frequency – test signal frequency (default 1 kHz).

If the speaker does not make sounds in this menu, but the headphones work, the problem is precisely hardware (the speaker is damaged, contacts have gone away or the audio amplifier is defective).

⚠️ Warning: Do not change other options in the engineering menu unless you understand their meaning! Incorrect settings can lead to network loss or damage to the camera module.

Upper (conversational)

Lower (multimedia)

Both dynamics

There's a sound, but it's distorted.

-->

4.Use of third-party testing applications

If the built-in MIUI tools don't give a clear answer, third-party apps will come to the rescue, allowing you to test speakers at different frequencies, check stereo balances, and even measure distortion levels.

Top.-3 diagnostics:

How to use Phone Check and Test:

1. Install and open the application.
2. Go to the Speaker section.
3. Press Start Test – the application will test both speakers in turn.
4. If the sound is interrupted or absent, the app will show a Speaker failure error.

To check the stereo balance (relevant for models with two speakers, for example, Xiaomi 11T or POCO F4 GT):

• Open the Speaker Test.
• Select Stereo Balance mode.
• The sound should be evenly distributed between the left and right channels, and if only one channel is heard, the corresponding speaker is faulty.

💡

If the app only shows the error at high frequencies (above 10 kHz), the problem may be covered in dust on the speaker or wear of the membrane. Try gently cleaning the speaker mesh with a soft brush (for example, for makeup).

5. Physical injury check

If software tests show no problems, but the sound is still missing or distorted, it's time to look at the phone for mechanical damage, most often because of:

• 💦 Moisture infestations (even if the phone is not sinking, condensation after a bath or rain can oxidize contacts).
• 🤏 Strong compression (for example, if the phone was in the back pocket and sat on it).
• 🧹 Clogging with dust or pile (especially relevant for the Redmi Note 8 Pro and POCO X3 NFC — They have big speaker holes).
• 🔌 Damage to the plume (for example, after a fall or failed disassembly).

How to view the speaker:

1. Take a flashlight and light the speaker at an angle on the grid, and if you see dust, pile, or oxidation, that's a potential cause of the problem.
2. Carefully press the area around the speaker (not the grid itself!) If the sound appears or changes, the contacts are likely to have gone.
3. Check if there are dents or cracks in the body near the speaker, and even a slight deformation can cause the membrane to rupture.

On Xiaomi’s IP53 models (like the Redmi Note 10S), the speakers have additional protection from dust, but not from moisture. If the phone has been in contact with water, even for a short time, the speakers may start wheezing or become completely silent after 1-2 weeks due to corrosion.

6. Diagnosis through ADB (for tech-savvy)

If you're familiar with ADB, you can do a deep diagnostic of the audio system, which can help you identify driver or audio chip problems.

What you need:

• Computer with installed ADB-driver.
• USB-cable (preferably original).
• Included mode Debugging USB on the phone (Settings → About the phone → MIUI version → 5 taps → For developers → Debugging by USB).

Teams to check:

adb shell


su




service call audio 33 i32 1 Includes test mode




service call audio 33 i32 0 # Turns off test mode




dumpsys media.audio_flinger

If there is no sound after entering the first command, but errors such as AudioFlinger couldn't open audio hardware appear in the logcat, this indicates:

• 🔧 Failure of the audio chip (e.g. Qualcomm) WCD9340/9341 Snapdragon on Snapdragon 865/870).
• 🔌 Problems with the plume connecting the speaker to the motherboard.
• 🛠️ Driver conflict after firmware custom Recovery (for example, TWRP).

⚠️ Note: On Xiaomi models with MediaTek (e.g. Redmi) 9C or POCO M3) team ADB For audio tests, you may not work due to manufacturer limitations, in which case you can use alternative methods from the previous sections.

7.When to contact the service: signs of serious breakdowns

If all of these methods did not work, and the speaker still does not work, you will most likely need professional repair. Here are 5 signs that you can not do without a service center:

• 🔇 Complete lack of sound in all modes (calls, music, video), but the headphones work.
• 🔊 The sound is there, but strongly distorted (wheezing, crackling, "gurgling") - this is a sign of a rupture of the membrane or a short circuit in the dynamics.
• 📱 Phone overheats when playing sound - possible malfunction of the audio amplifier.
• 🔌 The sound appears only when you press the case - the contacts have gone away or the plume has been damaged.
• 💦 The phone fell into the water or was exposed to high humidity (even if everything is dry on the outside).

The cost of repairing the speaker in Xiaomi depends on the model:

If you want to repair your phone yourself, consider:

• On models with adhesive housing (for example, Xiaomi 12), disassembly without a special tool (suction cup, mediator) can lead to damage to the display.
• Speakers on Xiaomi are often glued rather than soldered, and it’s important to use heat glue instead of superglue when replacing.
• After the speaker is replaced, it may be necessary to calibrate through the engineering menu (code # #36446337##).

💡

If the phone is warranty, do not disassemble it yourself! Xiaomi will cancel the warranty if there are traces of an autopsy. Contact the official service - the replacement speaker under warranty will cost free if the breakdown is not your fault.

FAQ: Frequent questions about Xiaomi speakers