Xiaomi Redmi Note 8 Pro is one of the most popular smartphones in the budget segment, but many users face the problem of not loud enough in headphones. Even at the maximum volume level, music or podcasts can sound quiet, especially in noisy environments. The reasons lie in the limitations of the manufacturer, the features of firmware MIUI and hardware limits of the Mediatek Helio chip G90T.
In this article, we'll look at 7 proven ways to turn up the volume of headphones, from basic MIUI settings to engineering menus and third-party utilities. Importantly, not all methods are equally safe. Some can cause audio distortion or even damage to the earphone speakers. We've highlighted the risks in each section so you can choose the best option.
Before you start, make sure that the problem is not with the headphones themselves. Try connecting them to another device. If the sound is quiet, it's with the headphones, not the smartphone. Also check the 3.5mm connector for dust or oxidation, which is a common cause of poor contact.
Volume settings in MIUI: what can be changed without risk
Let's start with the safest method, the standard MIUI tools, and the manufacturer has laid down several ways to adjust the sound that don't require superuser rights or system files.
The first thing you should do is activate the Sound Amplifier mode (if available in your firmware version).
- Go to Settings. β Sound and vibration.
- Select Sound Quality (or Sound Effects in some versions).
- Activate the headphone booster slider or MI Sound Enhancer.
If there is no such item, try an alternative path:
- π Sound balance: In the same section, find the headphone balance. Move the slider left or right -- sometimes it helps to wake up the quiet channel.
- π΅ Equator: Turn on the built-in equalizer and select the Bass or Rock preset. These settings automatically raise the overall volume at medium frequencies.
- π Disabling restrictions: In some regions MIUI Artificially lowers the volume due to local regulations. Try changing the region in the settings to India or the United States (see section 3).
If you don't get enough volume after this manipulation, move on to the next method, but first check if Do Not Disturb or No Sound is activated, they can block the volume changes.
2. Engineering menu: hidden sound settings
The Redmi Note 8 Pro on the Mediatek Helio G90T chip has a hidden engineering menu where you can manually adjust sound settings. This method requires caution: incorrect values can lead to sound distortion or overheating of the chip.
To open the engineering menu:
- Open the Phone app.
- Enter the combination: ##36446337## (or #4636## for the alternative menu).
- Choose Hardware Testing β Audio.
In the Audio section, you are interested in the following parameters:
| Parameter | Recommended value | What changes |
|---|---|---|
| Headset Mode | Normal β High Performance | Increases the power of the amplifier |
| Headset Volume | Maximum 150 (default 100) | Direct volume increase |
| Speaker Volume | Do not touch (affects only the speaker) | β |
| Mic Volume | Don't touch (affects the microphone) | β |
Attention: Headset Volume above 150 can cause distortion and damage to the headphones. Start with 120 and gradually increase, checking the sound after each step.
After the changes, restart your smartphone. If the sound gets worse (wheezing or crackling), return the values to the standard ones.
βοΈ Preparation for work with the engineering menu
3. Change of firmware region: circumventing MIUI restrictions
MIUI has regional volume limits related to local safety standards, for example, European firmware often has lowered the maximum volume compared to Asian versions, and changing the region can remove this limit.
How to change the region:
- Go to Settings. β Additionally. β Region.
- Choose India or Indonesia (these regions have minimal restrictions).
- Reset the device.
If Region is not in the settings, try an alternative method:
- π Install. VPN servers in India or Indonesia.
- π± Reset network settings in Settings β SIM-maps and mobile networks β Resetting network settings.
- π Reboot your smartphone and check the volume.
This method does not work on all versions of MIUI. If the volume has not changed after changing the region, return the previous settings to avoid problems with updates.
π‘
Before changing region, turn off automatic firmware updates in Settings β About Phone β System Update. In some cases, after changing region, the device may suggest upgrading to an unstable version of MIUI.
Third-party applications: sound amplifiers
If the standard methods didn't work, you can use third-party utilities, and they work on two principles:
- Software amplification β increase the volume due to sound processing algorithms (may worsen the quality).
- Bypassing Android restrictions β changing system volume settings (requires root).
The best apps for the Redmi Note 8 Pro:
- π§ Volume Booster GOODEV β It's a simple amp with preset profiles for different genres of music. It doesn't require root.
- π Precise Volume β allows you to adjust the volume more accurately (a 1% step instead of the standard 15%), useful if the maximum level is almost satisfied, but you do not have a pair of decibels".
- π οΈ ViPER4Android β Advanced sound processor with equalizer and amplifier, requires root and proper driver installation.
To install ViPER4Android on Redmi Note 8 Pro:
- Download the latest version from the official website (not from the Play Market).
- Install the driver through Magisk Module (if there is root).
- In the application settings, activate Master Limiter and increase Pre-Amp to +3 dB.
β οΈ Note: Non-root applications (such as Volume Booster) can increase volume by distorting sound. Long-term use at maximum settings reduces the life of headphone speakers.
5. Modification of system files (for experienced ones only)
This method is suitable for users with an unlocked bootloader and root rights. It involves editing a file. mixer_paths.xml, which is responsible for volume limits at the hardware level.
Instructions:
- Install Root Explorer or any file manager with root support.
- Cross the path: /vendor/etc/mixer_paths.xml.
- Make a backup copy of the file (copy it to your computer).
- Open the file in the text editor and find the lines with the parameters: <path name="headphone"> <ctl name="HPHL Volume" value="60" /> <ctl name="HPHR Volume" value="60" />
- Increase your value to 80-85 (maximum 90, but itβs dangerous!).
- Save the file, restart the smartphone.
If the sound is lost or there is a strong distortion, return the original file.
β οΈ Attention: Incorrect editing mixer_paths.xml It can cause a complete loss of sound. MIUI After updating, files are reset to standard.
What to do after editing mixer_paths.xml sound?
6. Hardware solutions: cleaning the connector and replacing headphones
If the software methods fail, the problem may be in the hardware, and it's often the fault of:
- π§Ή 3.5mm contaminated connector β dust or oxidation of contacts degrades signal.
- π§ Low-omb headphones β resistance below 16 ohms may not coincide with the output resistance of the smartphone.
- π Damaged plug β a break in the wire or poor contact in the connector.
How to clean the connector:
- Turn off your smartphone.
- Take a wooden toothpick and carefully remove the dust from the connector.
- Soak the cotton swab in alcohol and wipe the contacts (don't overdo it!).
- Let the connector dry for 10-15 minutes.
If cleaning didnβt help, try headphones with other resistance:
| Headphone resistance | Compatible with Redmi Note 8 Pro | Recommendations |
|---|---|---|
| 8-16 Om | β Poor (low volume) | Use it with an amplifier. |
| 16-32 Ohm. | β Optimal. | The best choice for a smartphone |
| 32-100 Ohm | β οΈ Requires an amplifier. | Without the amplifier, the sound will be quiet. |
If you use Bluetooth headphones, the problem may be the codec. Go to Settings β Bluetooth, find your headphones and choose aptX or AAC codecs instead of SBC β they provide better quality and volume.
7.Alternative methods: from USB-C adapter to custom firmware
If none of the above has worked, consider radical solutions:
- π USB-C Amplifier adapter: Connect headphones via an external DAC (e.g. Xiaomi) USB-C to 3.5mm Headphone Jack Adapter. It bypasses the smartphone's built-in amplifier and gives a clean, volume-controlled sound.
- π± Custom firmware: Install LineageOS or Pixel Experience. These firmwares have no regional restrictions MIUI They often offer more flexible sound settings.
- π§ Replacement of the audio chip: extreme case, if the sound is quiet even after all the manipulations, the amplifier in the smartphone may have failed.
When using a USB-C adapter, note that the Redmi Note 8 Pro does not support USB Audio Class 2.0, so maximum volume will be limited by the adapterβs capabilities.
β οΈ Attention: Installing custom firmware voids the warranty and may result in data loss.Before firmware, make a full backup through TWRP.
π‘
The USB-C amplifier adapter is the most reliable solution for raising volume without the risk of damaging your smartphone, and is suitable for users who do not want to mess with settings.