How to turn on the sound of a call on Xiaomi: the complete guide

Users of Xiaomi smartphones often face a situation where the device stops emitting audio signals when an incoming call is made, this can be caused by an accidental switch to silent mode, a software failure of the MIUI system or improper configuration of profiles. The lack of an audible notification leads to missed important calls and creates discomfort in everyday use of the gadget.

In this article, we will discuss in detail all possible causes of sound loss and how to eliminate them. You will learn how to activate the volume of a call through an engineering menu, adjust personal tunes for different contacts and check for system limitations. Deep diagnostics will help to identify hidden settings that block audio signals.

Following the instructions will allow you to return full functionality to your device, and we will look at both standard methods through the settings menu and more complex solutions to software problems, and it is important to carefully follow each step so that you do not change unnecessary parameters.

Basic volume setting and sound profiles

The first step in solving the problem is to check the current audio output parameters. Often users accidentally reduce the volume level to a minimum or activate the Do Not Disturb mode. To quickly check, you need to press the side volume button and make sure that the Call slider is raised up. It is also worth paying attention to the bell icon in the notification curtain - if it is crossed out, the silence mode is active.

Android's MIUI-enabled system allows you to flexibly manage audio profiles, you can set up individual volume levels for media, alarms and phone calls, and mixing these parameters often results in sound when watching video and silence when calling, and you need to clearly distinguish these settings in the appropriate menu.

For a detailed configuration, go to Settings → Sound and Vibration. There are sliders available for each type of notification. Make sure the Sound in Your Pocket switch is activated, as it prevents the speaker from accidentally turning on, but should not block the call itself. If the sliders are grey and do not move, a third-party profile or power saving mode may be activated.

⚠️ Warning: Turning on Do Not Disturb mode can completely block the sound of the call, even if the volume sliders are twisted to maximum.

It's important to consider that some of the themes downloaded from Themes store may have their own sound circuits, they can overwrite system settings and set their own volume limits. If the problem occurs after changing visual style, try returning the standard theme to check.

Removing software failures and resetting sound settings

If mechanical adjustment doesn't work, it can be a software failure. MIUI sometimes accumulates errors in the cache of audio services. A simple reboot of the device often solves the problem, but in more complex cases, it requires resetting the audio settings to factory values. This won't delete your personal data, but will return the audio parameters to their original state.

There is a hidden way to reset audio settings through the engineering menu, but it requires caution. A safer option is to use code to check the status of the speakers. Enter the command ##64663## in the phone app to go into testing mode. Select the speaker test and check if the device makes sound when you press the screen.

In some cases, Bluetooth settings conflict. If the phone has previously been paired with a headset or speaker, it may try to transmit the sound of the call to them, even if the devices are off or far away. Turn off the Bluetooth module completely and check for sound. It is also worth removing the old pairings in the Settings → Bluetooth menu.

Updating the system can either fix the bug or bring a new one. If the sound is gone after the MIUI update, try clearing the Settings and Phone app cache. Go to Settings → Apps → All apps, find what you want and click Clear Cache. Don't confuse it with the Clear All button to avoid losing contact data.

Customize personalized melodies for contacts

One of the useful features of Xiaomi smartphones is the ability to assign unique tunes to specific subscribers, which allows you to recognize the caller without looking at the screen, but the wrong configuration of this feature can lead to the fact that a call from a certain person will pass without sound, while the rest of the calls will be heard.

To assign a customized tune, open the Contacts or Phone app. Find the right subscriber in the list and click on their name. From the menu that opens, select Sound or Melody. The system will suggest you select a track from the built-in library or from the device's memory. Make sure the file you select is not corrupted and is format-supported.

• 🎵 Open the contact card and select “Change».
• 🔊 Click on the “Melody” field and select the desired track from the list.
• 💾 Save the changes by clicking the tick in the top corner of the screen.
• 📞 Check the work by making a test call from another number.

If you use third-party calling apps, such as from Google or Truecaller, the tune settings may be duplicated or conflicted, in which case priority is given to settings for the active dialing app. Check which application is installed by default to make calls in the Applications → Default section.

Using an engineering menu to amplify the signal

For advanced users, it is possible to adjust the volume levels through an engineering menu, which allows you to increase the maximum volume of the speaker if the standard values are not enough, but interference with these settings requires extreme caution, since incorrect values can lead to the wheezing of the speaker or its complete failure.

To enter the engineering menu, dial the code ##3646633##. Once the interface is opened, go to the Hardware Testing tab, then select Audio. Here you will see a list of modes (Normal, Headset, Handsfree). Select Normal mode and Media or Sph (Speech) type. In the Max Vol field, you can change the value, but it is not recommended to put it above 140-145 units.

When you change the settings, be sure to press the Set button to save the settings. Without this action, the changes will only take effect until the next reboot or not at all. If the sound becomes distorted after you set up, return the values to factory settings, usually marked as Default.

⚠️ Warning: Changing the Max Vol above 160 units can cause the speaker to burn out instantly.

Solving problems with Bluetooth and connected devices

Modern Xiaomi smartphones often interact with smartwatches, headphones and automotive systems. Bluetooth can intercept the audio stream of a call by directing it to an external device. If the headphones are in the bag or out of reach at that moment, you will not hear the call. The system can consider the connection active even when the signal is weak.

To rule out this problem, you need to check the list of paired devices. Go to Settings → Bluetooth and look at the list. If there are devices that you are not using right now, click on the gear icon next to them and select "Disable" or "Forget the device." This will break the connection and return the sound to the phone speaker.

There's also an audio-routing feature that lets you select the output device during a call, and when a call is made, a button for the source of the sound (speaker, headphones, speaker) appears on the screen, and make sure that the speaker is selected, and sometimes the system remembers the last choice and automatically switches to it the next call.

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If the sound is gone after connecting to the car, try turning off the auto-response or contact sync option in the car's Bluetooth settings, this often resolves protocol conflicts.

Additional settings for accessibility and special capabilities

Android has a special feature section that is designed for people with hearing or vision impairments, and activating certain features, such as Mono Audio or Hearing Aid, can change the way you play a sound, and in rare cases, these settings conflict with a standard caller, making the sound barely audible or turning it off completely.

Check Settings → Advanced Settings → Special Features. Pay attention to the hearing-related items. If you're not using a hearing aid, make sure the appropriate switches are off. It's also worth checking the Audio Identification setting, which can block other sounds for listening noises.

Another important parameter is Pocket Mode, which uses a proximity sensor to detect where the phone is in your pocket, so if the sensor is contaminated or covered with a protective film, the phone can "think" what's in your pocket and silence the sound of the call, leaving only vibration. Wipe the top of the screen and check the sensor.

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Testing special features and the purity of the proximity sensor is an often overlooked but critical step in diagnosing audio problems on Xiaomi.