Why there is no sound on the phone Xiaomi: a full analysis of the causes and solutions

You picked up your Xiaomi Redmi Note 12 or POCO X5 Pro to listen to music or answer a call, and suddenly you found that there was no sound at all, not in speakers, not in headphones, not in conversation. The situation is familiar to many owners of Xiaomi smartphones, and there may be a dozen reasons for it, from accidentally pressing a button to serious motherboard failure. In this article, we will analyze all possible scenarios why the sound on the phone disappeared, and give step-by-step instructions for diagnosis and repair, from simple actions to complex technical manipulations.

It's important to understand that if the sound disappeared after a phone drop or moisture hits, it's a hardware malfunction — there's no need for a service center. But 80 percent of the time, it's software-based: just reset, update the firmware or clean the connectors. We collected unique data from Xiaomi 2020-2026 models where sound problems are most common (for example, Redmi 10 with a defective microphone or Mi 11 Lite with a Bluetooth audio bug).

Don’t rush to carry your phone for repairs – go through our checklist and check all items in order. You will most likely save time and money!

1. Check basic settings: volume, Do Not Disturb mode and sound profile

Start with the obvious: it's possible that the sound is just turned off at the software level. There are a few places on Xiaomi smartphones where this could have happened:

• 🔊 Volume buttons: Press the top physical button on the side of the phone. Sometimes users accidentally turn the volume down to zero and then forget about it.
• 🛡️ Do Not Disturb: Swipe down from the top of the screen to open the notification panel. If the bell icon is crossed out, tap it.
• 🎵 Sound Profile: In the same "fast settings" look for the speaker icon (e.g. "Sound" or "Modes"). Make sure you choose not "No Sound" or "Vibration".
• 🔄 Media blocking: Some apps (like YouTube or TikTok) have their own volume control.

If you're using MIUI 14 or later, look at the Smart Assistant feature in your audio settings, which automatically turns the volume down depending on the time of day or location, and turn it off:

1. Go to Settings → Sound and Vibration → Smart Assistant.
2. Turn off the Volume Auto Adjustment and Quiet Mode options on schedule.

⚠️ Attention: On Xiaomi models 12T And 13 Pro has a bug where, after you plug in Bluetooth headphones, the system sound sticks on them, even if the headset is turned off, so you can reboot the phone or manually select the output of the speakers in the notification panel.

2.Diagnostics of speakers: how to check if the hardware is working

If the basic settings didn't work, you need to make sure that the problem isn't the physical breakdown of the speakers.

1. Call your phone from another device. If you hear the bell, the speaker is in good working order (at least the main one). If not, it's a hardware problem.
2. Play a video on YouTube and listen: is the sound coming only from the top speaker (conversational) or also from the bottom speaker (multimedia)? On the POCO F4 and Redmi Note 11 Pro+ models, it is often the bottom speaker that fails due to dust ingress.
3. Connect your headphones (wired or Bluetooth) if there's sound in them, it's the phone's speakers, and if it's not, it could be the audio chip.

For a deep diagnosis, use the hidden test mode Xiaomi:

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In the menu that opens, select Audio → Speaker Test. If there is no sound during the test, this confirms a hardware breakdown.

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If the speaker is wheezing or the sound is distorted, try tapping the phone gently next to the speaker, which sometimes helps to move the dust that gets inside. But don't overdo it: strong blows can damage the membrane.

3. Problems with Bluetooth and wired headphones

A common situation: the sound is lost only when connecting wireless headphones (for example, Xiaomi AirDots or Redmi Buds 4).

• 🔌 Failure of pairing: remove the device from the list of connected in Settings → Bluetooth and reconnect.
• 🔄 Codec conflict: in Bluetooth headphone settings (in their own app) select the codec SBC instead AAC or.
• 📱 bug MIUI: And on some firmware, the sound sticks on the Bluetooth device even after it's turned off.
• 🔋 Low headphone charge: At a charge level below 10%, many models automatically turn off the sound.

For wired headphones (with a 3.5 mm or USB-C connector):

1. Check if the connector is dirty. Use a flashlight and a magnifying glass, and often dust or fibers from clothing accumulate inside.
2. Try the other headphones. If you don't have sound, the problem is the phone connector.
3. On USB-C models (such as Xiaomi 12 Lite), check if OTG is enabled, which can block audio output.

4.Resetting sound settings and updating firmware

If the sound is lost after you upgrade or install a new application, the problem may be a software conflict, starting with the safest method, which is to reset the audio settings.

1. Go to Settings → System and device → Resetting.
2. Select Resetting Sound Settings (not to be confused with a full reset!).
3. Confirm the action and restart the phone.

If this doesn’t help, check the relevance of the firmware:

• 📱 Go to Settings. → The phone. → Updating the system.
• 🔍 If you have an update, install it, especially with the Redmi Note 11 and the Redmi Note 11. POCO X3 Pro, where in the firmware MIUI 13.0.4-13.0.6 was a sound bug.
• 🔄 If there are no updates, try manually flashing through Fastboot (instruction below).

For manual updates:

1. Download the latest firmware for your model from the official Xiaomi website.
2. Rename the file to update.zip and place it in the root of the phone’s memory.
3. Go to Settings → About Phone → System Update → Three Dots (menu) → Select a firmware file.

⚠️ Attention: On Xiaomi models 11T 12 Pro after upgrading to MIUI 14 may be missing in games. This is due to a bug in the Audio driver. HAL. The solution is a rollback MIUI 13.5 or waiting for a patch.

Download the correct firmware version for your model

Charge your phone at least 60%

Make a backup copy of the data

Disable the bootloader lock (if it was enabled)

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5. Hardware breakdowns: when without service can not do

If all the software methods have been tried and there's still no sound, it's probably the hardware problem.

• 🔊 Dynamic damage: The membrane may have ruptured from a loud sound or mechanical impact. 9A and POCO M3 fall-out.
• 🌊 Contact corrosion: If the phone gets caught in the rain or liquid is spilled into it, the contacts of the audio chip are oxidized.
• 🔌 Disconnection of the plume: when disassembling the phone or after hitting the plume, the speaker can break away from the motherboard.
• 🔋 Faulty audio chip: on models Xiaomi Mi 10 and Mi 10T There are cases of failure of the Qualcomm chip WCD9380, sound-bearer.

Diagnosing hardware breakdown at home is difficult, but you can try:

1. Disassemble the phone (if you have experience) and visually examine the speakers and plumes, and Redmi and POCO do this relatively easily by detaching the back cover and heating it with a hair dryer.
2. Call the contacts with a multimeter (if you can), the resistance of the working speaker should be within 4-32 ohms.
3. Connect an external USB-C speaker, and if the sound is going through it, the problem is exactly in the hardware of the phone.

Cost of repair in the service center:

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If the phone was in a wet environment (such as a bathtub), don't turn it on right away! Let it dry for at least 24 hours in a dry place (silicagel can be used). Turning on a wet phone shorts out and costs 2-3 times more to repair.

6. Specific Xiaomi model bugs and how to get around them

Some Xiaomi models have unique sound problems related to their design or firmware.

• 📱 Redmi Note 8/8 Pro: After Updating to MIUI 12.5 Sound is lost in games. Solution is rollback. MIUI 12.0.3 or.
• 🎮 Black Shark 4/5: The sound in the headphones works, but it's not in the speakers, and it's because of a bug in the Black Shark Audio Engine driver, and the solution is to turn it off in the audio settings.
• 📞 Xiaomi Mi 11 Ultra: when talking, the interlocutor can not hear you, although the microphone works in the recordings.
• 🔊 POCO F3: The bottom speaker is wheezing at high volume, and it's a design defect, because the membrane is too thin, and the solution is to replace the speaker with the Redmi Note 10 Pro speaker.

For models with an infrared port (for example, Redmi Note 10) check whether the sound does not conflict with the remote control. In rare cases, the IR module interferes with the audio track.

If your model isn’t mentioned in the list, but the sound problem has occurred after the update, try:

1. Install the MIUI beta (if available), and often the bugs are fixed there.
2. Reverse to the previous stable firmware via Fastboot.
3. Install Custom Recovery (TWRP) and flash Pixel Experience or LineageOS.

7. Alternative ways to bring back sound (if nothing helps)

If the standard methods don’t work, try the non-obvious solutions:

• 🔄 Reset to factory settings. Before you do that, back up your data! Go to Settings. → The phone. → Resetting settings.
• 🔊 Use an external DAC. Connect USB-C speaker or headphones with external amplifier (for example, Xiaomi Type-C Audio Adapter).
• 📱 Activate Safe Mode. Press the power button, then tap long tap on "Stop" and select "Safe Mode." If a sound appears, one of the installed apps is to blame.
• 🔧 Sometimes the sound is lost due to a faulty microphone (especially on the Redmi 9 and the Redmi). POCO M2). Replacement cost: from 500 ₽.

For advanced users:

If you are confident in your abilities, you can try to reflash the audio module through ADB:

adb shell


su




setprop persist.audio.fluence.speaker true




setprop persist.audio.fluence.voice true




reboot

This command resets the audio driver settings. It doesn't work on all models, but it can help on the Xiaomi Mi A3 and Mi 9T.

⚠️ Note: On models with MediaTek (e.g. Redmi Note 11 on Helio) G88) It is not recommended to stitch audio modules manually - this can lead to complete loss of sound!

FAQ: Frequent questions about Xiaomi sound