How to increase the volume of the speaker when talking on Xiaomi Redmi Note 7: all ways

Xiaomi Redmi Note 7 owners often face the problem of too quiet sound in the conversational speaker, which interferes with comfortable communication, especially in noisy places. Unlike the media speaker, which is responsible for music and video, the conversational speaker (earpiece) requires a separate setup.

The causes of low volume can range from the software limitations of MIUI to physical impurities of the speaker. In this article, we will discuss all working methods of increasing volume, including hidden engineering settings and hardware checks, you will learn how to adjust the sound without root rights and what to do if the speaker does not work at all.

Why the speaker on the Redmi Note 7 has become quiet

Before you turn up the volume, it is important to understand the cause of the problem. On the Redmi Note 7, a quiet sound when talking can occur due to:

• 🔊 Programmatic constraints MIUI (factory volume settings)
• 📱 Pollution dynamics by dust or moisture
• 🔧 Damage after falling or repairing
• 📲 Failure of audio drivers
• 🔋 Battery savings (Ultra-savings mode")

The most common reason is the factory limitations of MIUI, which is that the manufacturer sets a "safe" volume level to prevent damage to the speaker, but for many users, this level is too low.

If the problem comes on suddenly, check if there have been any recent updates, and sometimes the individual audio settings are reset after the MIUI update.

Method 1: Standard volume setting in MIUI

Start with the basic settings. A volume slider appears on the screen during the call, many users don't notice that it can be adjusted separately for the speaker and speakerphone.

How to do this:

1. Make a test call
2. Press the volume button (physical or on screen)
3. Select the Call tab (not "Media" or "Alarm clock")
4. Adjust the slider to the maximum level

If this doesn't work, go to deeper settings. MIUI 12 and later also has a separate audio profile menu.

Make sure Do Not Disturb mode is turned off |Check volume slider while calling |Turn off Bluetooth headphones |Reboot phone-->

Method 2: Engineering menu for fine-tuning

The hidden engineering menu allows you to change speaker settings that are not available in standard settings. For the Redmi Note 7, use this method:

1. Open the phone application
2. Enter the combination: ##36446337##
3. Go to Hardware Testing → Audio → Normal Mode
4. Select Receiver (Conversational Speaker)
5. Set Max Vol to 150-160 (standard 128)

Setting a value above 160 can cause sound distortion and damage to the speaker.

If the combination doesn’t work, try the alternative code: ##4636## → Phone Information → Select Network Type → Sound Customization.

Method 3: Adjusting through ADB (for Advanced)

If the engineering menu is not available, you can change the volume settings via Android Debug Bridge (ADB). This method requires a computer and USB-cable.

Instructions:

1. Enable USB Debugging in Settings → About Phone → MIUI Version (click 7 times)
2. Connect your phone to your PC and confirm your trusted device
3. Open the command line and enter:

adb shell settings put system volume_music 15


adb shell settings put system volume_voice_call 6




adb shell settings put system volume_system 7

Where volume_voice_call — This is the volume of the speaker (maximum) 6). After completing the commands, restart the device.

⚠️ Attention: Wrong ADB-commands may disrupt the system, and we recommend backing up before changes.

Method 4: Cleaning dynamics and checking hardware problems

If software methods haven't worked, the problem could be physical.On the Redmi Note 7, the conversational speaker is positioned at the top of the screen and is often clogged with dust.

How to clean:

• 🧹 Use a soft brush (for example, for makeup)
• 💨 Blow the speaker with compressed air (cylinder for technique)
• 🔊 Check the sound after cleaning with a test call

If the sound has not improved after cleaning, damage may occur:

💡

To check the microphone, use the Dictator app, and if your voice is recorded quietly, the problem is with the microphone, not the speaker.

Method 5: Resetting the sound settings to the factory

If all previous methods failed, try resetting the audio settings, which will return all parameters to factory values, but will not affect personal data.

How to reset:

1. Go to Settings → System and device → More
2. Select Settings Reset.
3. Click Reset Network, Sound and Display Settings
4. Confirm the action.

After reset, check the volume with a test call, and if the problem persists, this confirms the nature of the hardware malfunction.

💡

Sound resetting is the last software method before you go to the service, and if it doesn't work, you probably need repairs.

Frequent errors in setting volume

Many users make common mistakes that only make the problem worse:

• 🔇 Use "Speaker" instead of setting up a speaker
• 🔊 Set the maximum volume in the engineering menu (risk of damage)
• 📱 Do not check for updates MIUI (Sometimes bugs are fixed in new versions)
• 🔧 Use unofficial firmware without compatibility check

It is particularly dangerous to change the parameters in the engineering menu without understanding the consequences, for example, setting a value of Max Vol = 200 can lead to constant distortion of the sound.

⚠️ If after changes in the engineering menu, the speaker began to wheez, immediately return the standard settings (128) and restart the phone.

FAQ: Answers to popular questions