How to turn on the sound on the smartphone Xiaomi: 7 proven ways

Sound on a Xiaomi smartphone can be lost for dozens of reasons, from accidental button pressing to system failure. If your Redmi Note 12, POCO X5 or Mi 11 Ultra suddenly stopped making sounds, take it easy to bring to the service: 90% of the time the problem can be solved by yourself in 2-3 minutes. This article covers all possible scenarios, from basic checks to hidden MIUI settings, which even experienced users do not know.

We're not going to list the obvious things like "check your headphones" -- instead, we're going to focus on system solutions that work even when the sound goes away after a phone upgrade or drops. All the instructions are relevant for MIUI 14/15 and the new 2023-2026 models, but they're also good for older devices like the Redmi 9A or Mi A3. Start with the simplest and end with advanced users.

Hardware check: buttons and connectors

Before digging into the settings, make sure the problem isn't physical audio blackout.All Xiaomi smartphones have two key mechanical buttons that can block audio:

• 🔊 Volume button – press the top of the side key (usually next to the power button) and the volume indicator should appear on the screen.
• 🔔 Mode switch (on some models like Mi) 10T Pro or Black Shark is a little slider on the left end, and in the up position, it activates Do Not Disturb Mode".
• 🎧 Connector. 3.5 mm (if any) - insert and remove headphones 2-3 Sometimes the contacts oxidize, and the phone thinks the headphones are connected, blocking the speakers.

Pay special attention to connector contamination. Dust, moisture, or metal shavings (like keys in your pocket) can close contacts. Blow the connector with compressed air or gently clean with a toothpick wrapped in a wiltless fabric. On models with IP53 protection (like the Redmi Note 11 Pro+), after cleaning the connector, the sound can only come back after rebooting, which is normal.

⚠️ Attention: If the sound disappeared with the vibration after the phone fell, this may indicate the plume dump of the speaker.Do not try to disassemble the device yourself - Xiaomi uses adhesive joints that are easily damaged.

2. Software diagnostics: modes and settings MIUI

MIUI has several hidden features that can block sound without you knowing it, starting with the obvious parameters:

1. Open the Settings. → Sound and vibration.
2. Make sure that the Media slider is not at zero (sometimes resets after an update).
3. Check the "Sound Modes" section - "Sound" should be selected, not "Vibration" or "No Sound".
4. Slip on "Additional Settings" and turn off "Adaptive Sound" (it can automatically mute audio in noisy places).

If everything is fine here, move on to the hidden settings:

• 🛠️ Do Not Disturb Mode: Go to Settings → Notifications → Do Not Disturb and check the schedule. Sometimes users accidentally turn it on all night long.
• 🔇 Disable audio for individual applications: in the same section "Sound and vibration" there is an item "App Sound". Make sure that for YouTube, Telegram or Games there is no tick "No Sound".
• 📱 User profiles: If you have multiple profiles set up (e.g., Work and Home), switch between them – the sound may be turned off in your current profile.

The volume level is checked in the settings

Do Not Disturb mode is off.

The problem is reproduced in several applications

Phone rebooted

-->

On models with MIUI 15 (for example, Xiaomi 13 Ultra or Redmi K60 Pro) there is a function "Smart Sound", which automatically adjusts the volume depending on the ambient noise, to turn it off:

1. Go to Settings → Special features → Smart sound.
2. Turn off the sound adaptation switch.
3. Reset the default sound settings (Reset button at the bottom of the screen).

3. Problems with specific applications

If the sound works in some programs (like calls) but doesn’t work in others (like Instagram or games), the problem lies in the settings of the particular app.

For social networks and instant messengers, there is a universal way to reset sound:

1. Go to Settings → Applications → Application Management.
2. Select a problem application (such as VK).
3. Click on Memory → Clear cache and Clear data (Warning: this will delete logins!).
4. Reboot the phone.

⚠️ Note: On some models (e.g, POCO F4 GT) After cleaning the application data, the sound can only return after disabling Dolby Atmos in the sound settings. MIUI 14, which is corrected in the new.

💡

If the sound is only lost in Bluetooth headphones, try "forgetting" the device in the Bluetooth settings and plugging it back in. On Xiaomi, this is done with a long tap on the headphone name and a choice of "Delete."

4. Resetting sound settings and diagnostics of speakers

If the previous methods didn't work, we should move on to more radical measures, starting with resetting sound parameters to factory ones.

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

After reset, check the sound in the following scenarios (in order):

1. Calling your phone (ask someone to call or use a second phone).
2. Play music through the standard Mi Music app.
3. YouTube video (without headphones).
4. System sounds (e.g., screen locking).

If there is no sound in all cases, start the diagnosis of the speakers:

1. In the phone app, dial the code ##4636##.
2. Select "Equipment Testing" (some models need to first click "Phone Information").
3. Scroll down to the Audio section and run tests for Speaker and Earthpiece.

On models with stereo speakers (such as the POCO X5 Pro or Mi 11 Lite), check both speakers separately:

• Close the top speaker (conversational speaker) with your finger and check the sound – if there is one, the problem is in the top one.
• Close the bottom speaker (multimedia) – if the sound is missing, it is defective.

5. Software update and rollback

A common cause of loss of sound is MIUI updates, especially in beta versions. If the problem occurs after the update, try the following steps:

• 🔄 Update rollback: Go to Settings → The phone. → Update the system, tap the software version 10 times, then select "Delete the last update" (available on all models).
• 📥 Manual firmware installation: download the stable version MIUI for your model from the official Xiaomi website and install it through Settings → The phone. → Updating the system → Three points. → Select a firmware file.
• 🐞 Clean Update Caches: In the same "System Update" section, click on three dots and select "Clear Cache".

For devices with an unlocked bootloader (POCO F3 GT, Redmi K50 Gaming, etc.), you can try installing custom recovery (TWRP) and flashing the Audio Mod module through Magisk. However, this is a risky method - improper actions can lead to a brick (complete inoperability) of the phone.

⚠️ Note: On models with a MediaTek processor (e.g. Redmi) 10C or POCO M5) Firmware rollback can lead to loss IMEI. Before the procedure, save it through the engineering menu (#3646633##).

6. Hidden functions of the engineering menu

For power users, Xiaomi has a hidden engineering menu where you can manually adjust your audio settings. Be careful - making the wrong changes can degrade the sound quality or lead to crashes.

To open the menu:

1. Dial in the phone app: ##3646633## (for MediaTek) or ##4636## (for Qualcomm).
2. Go to the section "Hardware Testing" → "Audio".
3. Here you will see all audio devices: Speaker, Headset, Earpiece, etc.

Useful settings in the engineering menu:

• 🔊 Normal Mode Test – Checking the Standard Playback Mode.
• 🎵 Loopback Test – an echo test (helps to identify microphone problems that sometimes block sound).
• 📊 Audio Gain - Gain Adjustment (if the sound is too quiet).

On some models (such as the Black Shark 5 Pro), you can turn on stereo sound for headphones in the engineering menu, even if it is disabled in the standard settings.

1. In the Audio section, find the Headset Mode.
2. Change the value from Mono to Stereo.
3. Save the settings and restart the phone.

💡

The engineering menu allows you to bypass the limitations of MIUI, but the changes will not persist after resetting settings or updating the firmware.

7. Hardware malfunctions and service center

If none of the software methods worked, the problem is probably hardware. Here are the typical malfunctions and their signs:

• 💧 Infection of liquid: the sound disappears after contact with water, a warning about moisture in the connector appears on the screen USB-C.
• 🔌 Short circuit: the phone overheats, discharges quickly, the sound is distorted before disappearing.
• 🔊 The speaker dump: sound is only in headphones, when shaking the phone, extraneous noises inside are heard.
• 📱 Train damage: sound disappears with vibration or sensor (for example, after falling).

The cost of repairs in official Xiaomi service centers (data for 2026):

Before visiting the service center:

1. Make a backup of the data through Settings → About Phone → Backup.
2. Make sure the problem isn’t with accessories (try other headphones, Bluetooth speakers).
3. Record a video demonstrating the problem - this will help the wizard quickly diagnose the malfunction.

⚠️ Note: Unofficial services often offer “cheap” repairs using used parts. On Xiaomi models, this can cause encryption problems. IMEI (Redmi Note 10, after which the phone may lose the network.

FAQ: Frequent questions about Xiaomi sound