How to increase the volume of headphones on Xiaomi Redmi Note 8 Pro: all working ways

The Xiaomi Redmi Note 8 Pro is one of the most popular smartphones in the budget segment, but many users face the problem of not listening to enough volume when listening to music through headphones. Even at maximum settings, the sound can seem quiet, especially when compared with other devices or using high-omnipotent headphones, the reasons for this lie both in hardware limitations (weak built-in amplifier) and in the software limits set by the manufacturer to protect hearing.

In this article, we’ll look at 7 proven ways to increase headphone volume on the Redmi Note 8 Pro, from basic Android settings to advanced methods using engineering menus and third-party utilities. It’s important to understand that some methods can affect sound quality or even damage headphone dynamics if used improperly, so we’ll detail all the risks and give recommendations for the safe use of each method.

If you use headphones with a resistance above 32 Ohms, the likelihood of low volume increases — in which case an external amplifier may be required. But for most users, software solutions are enough, which we will discuss below.

1. Check basic sound settings on Redmi Note 8 Pro

Before you resort to radical methods, make sure that all system settings of sound are configured correctly, often the problem lies in the wrong profile or disabled amplifiers.

Open Settings → Sound and vibration and do the following:

• 🔊 Media volume: drag the slider to maximum.Make sure the volume is set separately for multimedia, not for calls or alarm clocks.
• 🎧 Type of connected headphones: if you use wired headphones with a microphone (CTIA/OMTP), Try to connect them without a microphone or use an adapter.
• 🔄 equalizer MIUI: activate the built-in equalizer in Settings → Sound. → Equalizer and select the preset "Bas" or "Rock" - they amplify low frequencies, which subjectively increases the volume.
• 🚫 Don’t turn off Adaptive Sound: This feature automatically adjusts the volume to ambient noise, but on the Redmi Note 8 Pro, turning it off can lower the maximum level.

Also check the physical connection of the headphones: often oxidized contacts in the 3.5 mm connector or a damaged plug cause a quiet sound. Clean the connector with a cotton swab soaked in alcohol, and try other headphones for the test.

2.Use of the built-in engineering menu (MTK Engineer Mode)

The Redmi Note 8 Pro is built on the MediaTek Helio G90T chipset, which gives access to advanced audio settings through an engineering menu, which allows you to increase the volume at the hardware level, but requires caution - incorrect values can lead to distortion or damage to the speakers.

Instructions for entry and setting:

1. Open the Phone app and enter the combination: ##36446337###
2. Select Hardware Testing → Audio → Headset Mode.
3. In the Type section, set Sph (for headphones with a microphone) or Sph2 (for regular headphones).
4. In the Level field, change the value from 0 to 160 (maximum 255, but it is dangerous!).
5. Press Set, then restart the phone.

Critical warning: Values above 160 can cause clipping (distortion) and headphone overload.Start at 140 and gradually zoom in by testing the sound at each stage.

3. Installation of third-party applications to amplify sound

If the system settings don't work well, you can use specialized applications that work like software amplifiers, modifying the sound stream at the OS level.-3 Checked utility for Redmi Note 8 Pro:

To install ViPER4Android on Redmi Note 8 Pro without root rights, run:

1. Download APK from XDA (non-root version).
2. Install the application and launch it.
3. Enable Compatibility Mode in the settings.
4. Activate the driver in the Driver Status section.
5. In Master Limiter, set 0 dB and in Volume Boost to +6 dB.

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Before installing any sound modifiers, backup your MIUI settings in Settings → About Phone → Backup. This will help restore the original sound parameters when distorted.

4. Modification of the file mixer_paths.xml (for advanced users)

This method involves editing the system file responsible for volume limits, requires unlocked bootloader and root rights, and knowledge of working with ADB or root-access file manager (such as Root Explorer).

Step-by-step:

1. Download and install ADB Tools on PC.
2. Connect Redmi Note 8 Pro to your computer and activate USB Debugging in Settings → About Phone → MIUI Version (7 times click on version, then go back to Additional Settings → For Developers).
3. Open the command line in the folder with ADB and do: adb pull /vendor/etc/mixer_paths.xml This will copy the file to your PC.
4. Open up. mixer_paths.xml in a text editor (for example, Notepad)++) and find the lines: <path name="headphone"> <ctl name="HPHL Volume" value="60" /> <ctl name="HPHR Volume" value="60" /> Change the value of the C 60 on 80 (maximum — 90).
5. Save the file and upload it back: adb push mixer_paths.xml /vendor/etc/ adb reboot

After you restart, check the volume. If the sound gets distorted or there's background noise, return the original values.

Make a backup of the original file

Check for root rights (Root Checker app)

Install a root-access file manager (Root Explorer or FX File Explorer)

Connect the phone to the charger (the process can take 10-15 minutes)

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5.Use of Bluetooth codecs for wireless headphones

If you use Bluetooth headphones (like Xiaomi AirDots or Redmi Buds), the quiet sound problem may be related to the audio codec you use. By default, the Redmi Note 8 Pro uses SBC, the most versatile but not the most efficient codec. Switching to AAC or aptX can improve volume and quality.

How to change the codec:

1. Connect Bluetooth headphones to your phone.
2. Install the Bluetooth Codecs app.
3. Open the app and select your headphones from the device list.
4. In the Audio Codec section, set priority for aptX or AAC.
5. Reconnect the headphones.

Also in Settings → Bluetooth, enable the “High Quality Playback” option (if available) to increase the bitrate of the transfer, but may reduce the battery life of the headphones.

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AAC delivers better volume at medium and high frequencies, and aptX at low frequencies. The choice of codec depends on your headphone model.

Hardware solutions: amplifiers and adapters

If software methods are not working well, consider hardware amplifiers, which are relevant for high-resistance headphones (64 ohms and higher) that require more power than a smartphone’s built-in amplifier can provide.

Options for hardware amplification:

• 🎛️ Portable amplifiers (DAC/AMP): Devices like FiiO BTR3 or iBasso DC01 plugged in USB-C And they provide a clean amplified signal. 3 000 ₽.
• 🔌 Adapters with amplifier: for example, Apple USB-C to 3.5mm (Despite the name, it works with Android, or AudioQuest DragonFly, suitable for 3.5mm headphones.
• 🔋 Wireless amplifiers: Bluetooth adapters with support for aptX LL (For example, creative BT-W5) sound-enhance TWS-headphone.

Before buying, check compatibility with the Redmi Note 8 Pro – some amplifiers require support for OTG or specific drivers. Also pay attention to the power output of the amplifier: for headphones up to 150 ohms, 50 mW is enough, for 250 ohms + you will need 200 mW and above.

7. Alternative methods: from firmware to service center

If none of the above methods worked, consider the following options:

• 🔄 Firmware flashing to custom firmware: Firmware like Pixel Experience or LineageOS may have other volume limits. However, this requires unlocking the bootloader and risks voiding the warranty.
• 🛠️ Cleaning 3.5mm connector: Oxidation or contamination of contacts can reduce volume. Use alcohol and cotton swabs to clean.
• 🏥 Contact the service center: If the problem appears suddenly, there may be a malfunction of the audio chip or connector. In the Redmi Note 8 Pro, this occurs when you fall or get moisture.

Unique fact: on some batches of Redmi Note 8 Pro (released in 2019) there was a defect in the audio chip MT6358, And that's the volume reduction after a year of operation, and in this case, you need to change the chip, and the cost of repair is about 2,500. ₽.

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Before flashing, check the bootloader version in fastboot with the team

fastboot getvar anti

anti: 3

FAQ: Frequent Volume Update Questions on Redmi Note 8 Pro