How to increase volume on Xiaomi Redmi 9: all the ways from standard to hidden

Why Redmi 9 has a quiet sound and how to fix it

Xiaomi Redmi 9 owners often face the problem of low loudspeaker volume — whether during conversations, listening to music or watching videos. The reasons can vary from dusty speakers to software limitations of MIUI. In 80% of cases, the problem can be solved without repair using built-in settings or special applications.

It’s important to understand that hardware limitations (such as weak speakers in a budget model) can’t be completely eliminated, but it’s possible to increase volume by 30-50%. In this article, we’ll look at all working methods, from basic to advanced, including hidden engineering menu settings and fine-tuning the audio profile.

Before you start settings, check the obvious:

• 🔊 Make sure the volume control is not kept to a minimum (click the volume button up)
• 🎧 Turn off Bluetooth headphones – sometimes the sound automatically switches to them
• 🚫 Check if the "Do Not Disturb" mode is activated in the notification curtain
• 🧹 Clean the speakers from dust with a soft brush (especially the bottom speaker next to the connector). USB-C)

Method 1: Standard volume settings in MIUI

To start with, the basics are built-in MIUI tools, and many users don't know that Redmi 9 has separate controls for different types of sound, and only adjusts the overall volume.

How to add sound through standard settings:

1. Open the Settings. → Sound and vibration
2. Slip on "Loudness" (or press the volume button and select "Settings")
3. You will open 4 separate sliders: 📞 Call (volume of incoming calls) 🎵 Music and video (media files) 🔔 Notifications 🎤 Loud communication (for conversations without headphones)

Set each slider to the maximum.

An important nuance: MIUI 12/13 has a hidden limit on maximum volume to protect the speakers, and to get around it, you need to turn on "Safe Sound Mode" (see next method).

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If after increasing the volume the sound became hoarse or distorted, reduce the level by 1-2 divisions - this is a sign of overloading the speakers.

Method 2: Turning off the volume limit (Safe Headset Volume)

Xiaomi activates the "Safe Headphone Volume" feature by default, which limits the maximum sound level to 80% of what is possible, which is designed to protect hearing, but prevents those who want to get the most out of the speakers.

How to disable the restriction:

1. Go to Settings → Sound and vibration → Safe volume of headphones
2. Select "Disable" in the window that appears
3. Confirm the action by pressing "Yes"

Then check the volume, which should increase by 20-30%, and note that long-term listening to music at maximum volume can damage the speakers and impair hearing.

Has the volume of calls increased?| Check the sound on YouTube| Test the speakerphone | Make sure there is no distortion of the sound-->

Method 3: Engineering menu (for advanced users)

If standard methods don't work, you can use the Engineering Mode, which hides additional audio settings, which requires caution, because the wrong changes can cause failures.

Instructions for setting up through the engineering menu:

1. Open the phone app and dial the code: ##4636###
2. In the menu that appears, select "Audio" (or "Sound").
3. Go to the "Speaker" tab (Dynamic)
4. Here you will see the parameters: 🔊 Max Vol - maximum volume (can be increased to 160-180) 🎛️ Type - Type of speaker (do not change!) 📊 Value - Current value (increase gradually)

Max Vol = 160

"Set"

⚠️ Warning: Changes to the engineering menu don't persist after the phone is restarted, and to make them permanent, you'll need root access or special apps like this. MTK Engineering Mode.

Method 4: Applications for sound amplification

If the built-in methods don't work, you can use third-party apps, and the best ones not only increase the volume, but also improve the sound quality by making it equalizer.

Top.-3 Apps to amplify the sound on Redmi 9:

How to use the Volume Booster:

1. Install the app from Google Play
2. Run it and move the slider to the maximum.
3. Activate the "Dynamist Amplifier" option
4. Return to the music player – the volume should increase

The secret trick for speakerphone:

1. During the call, press the "Dynamic" button (loud link)
2. Turn the phone downwards, the sound will bounce off the surface and become louder.
3. For maximum effect, put the phone on a solid flat surface (table, windowsill)

If you watch video on your phone often, try using an external Bluetooth speaker. Even budget models like the Xiaomi Mi Portable Speaker sound 3-4 times louder than the built-in Redmi 9 speakers.

FAQ: Frequent questions about the sound on Redmi 9