How to increase the volume of headphones on Xiaomi: safe and effective methods

The quiet sound in headphones on Xiaomi, Redmi or POCO smartphones is a common problem that users face after upgrading MIUI or when connecting new accessories. The manufacturer artificially limits the maximum volume through European safety regulations (EN 50332), but these limits often seem excessive. In some cases, the sound is barely audible even at full volume, especially when using Bluetooth headphones or models with high impedance.

In this article, we'll look at 7 proven ways to turn up the volume, from standard MIUI settings to hidden engineering menu features and third-party utilities. Importantly, not all methods are equally safe. For example, changing the parameters in engineer mode can cause sound distortion or even damage to the earphone speakers if you exceed the permissible values. We'll note the risks to each method and give recommendations on how to avoid problems.

If you are using Xiaomi 13/14, Redmi Note 12 or older models like POCO X3, the instructions will be suitable for all versions of MIUI 12-14.

1. Check basic sound settings in MIUI

Before resorting to radical measures, make sure the problem isn't with standard settings. Xiaomi often hides useful options in non-obvious menus.

Open the Settings → Sound and vibration and check:

• 🔊 Multimedia volume: Move the slider to maximum. Sometimes it resets after you plug in new headphones.
• 🎧 Type of connected headphones: If your smartphone defines them as a "headset" (with a microphone), the volume can automatically go down.
• 🔄 Adaptive sound: Disable this feature in the Additional settings section – it dynamically adjusts volume depending on ambient noise, which does not always work correctly.

Pay special attention to the item Sound quality (not available on all models), here you can choose a High Definition profile, which increases the volume by turning off some filters, but on cheap headphones, this can add wheezing at high frequencies.

2. Disable volume restrictions via "Developer Mode"

MIUI blocks the exceeding of the safe volume level (usually 85 dB) by default, but this restriction can be circumvented through hidden settings.

1. Activate Developer Mode: Go to Settings → About Phone and click on MIUI Version 7 times.
2. Go back to the main settings, open a new section for developers.
3. Find the option to turn off the absolute volume (or Disable absolute volume for Bluetooth) and activate it.
4. Reboot your smartphone.

This method is especially effective for Bluetooth headphones, where Xiaomi artificially lowers the volume due to the A2DP protocol. Once the restriction is turned off, the sound will become 20-30% louder, but beware: prolonged listening at maximum volume can damage hearing.

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If the option “Disable the absolute volume level” is not in your version of MIUI, try updating the firmware or use the method with the engineering menu (section 4).

3.Use of uniform equalizer (EQ)

Incorrect equalizer settings can eat up volume, especially if the low- or high-frequency preset is activated. Xiaomi offers a built-in equalizer, but its capabilities are limited.

The MIUI Standard Equalizer

Go to Settings → Sound and Vibration → Equalizer. Choose a preset called Rock or Pop, which amplifies the average frequencies, which subjectively increases the volume. Avoid presets like Classic or Jazz, which often lower the overall sound level.

Third-party applications (Wavelet, Poweramp EQ)

For a more subtle setup, install Wavelet from Google Play. This app allows you to:

• 🎛️ Create a custom profile with a rise of 3-6 dB in the range of 100-5000 Hz.
• 🔊 Activate virtual surround (increases volume due to spatial effect).
• 📱 Apply the settings separately for headphones and dynamics.

Important: When using third-party equalizers, disable the built-in MIUI to avoid setting conflict.

4. Engineering menu: manual tuning of sound amplification

The most powerful, but also the most risky method is to change the parameters in the engineering menu (Engineer Mode), where you can manually increase the gain (gain) for headphones, but the wrong values will lead to distortion or damage to the speakers.

Instructions for Xiaomi/Redmi/POCO:

1. Open the Phone app and enter the combination: ##36446337###
2. Go to the Hardware Testing → Audio section.
3. Select Headset Mode (for wired headphones) or Headphone Mode.
4. In the Headset Gain field, increase the value from 0 to 5 (maximum 7, but it is dangerous!).
5. Press Set and restart the device.

For Bluetooth headphones, look for the Bluetooth Audio section and increase the BT Sco Gain setting (optimum: 3–4).

Wired headphones (impedance up to 32 ohms): Headset Gain = 3-4

Wired headphones (32-100 Ohms impedance): Headset Gain = 4-5

Bluetooth headphones: BT Sco Gain = 2-3

Do not exceed the value of 5 for Headset Gain and 4 for BT Sco Gain!-->

⚠️ Warning: If you have wheezing after a change in the engineering menu or the sound starts to "break", immediately reset the settings to the factory!

5.Resetting sound settings and cleaning the cache

Sometimes the problem is not hardware limitations, but software failures, such as when the MIUI updates, the audio driver settings may go off, or the audio cache may not work properly.

Follow the following steps:

1. Go to Settings → Applications → Application Management.
2. Find the Media app (or Music if you use a standard player).
3. Press Warehouse. → Clear the cache.
4. Return to the main settings, open Memory → Cleanup and start a deep cleanup.
5. Reboot your smartphone.

If this does not help, reset the sound settings:

• Open Settings → System → Resetting settings.
• Select Resetting Sound Settings (not to be confused with a full reset!).
• Confirm the action.

This method often helps if the volume suddenly drops after installing an update or connecting new headphones.

6. Check the compatibility of headphones and adapters

Low volume may not be due to the settings of the smartphone, but to the specifications of the headphones or adapters themselves.

If you use Type-C headphones without an integrated amp, the problem may be that there is insufficient voltage on the port, in which case an adapter with an external DAC, such as the Xiaomi Hi-Res Audio Dongle, will help.

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Before buying new headphones, check their impedance. For Xiaomi smartphones, optimal models with impedance 16-32 Ohms. Headphones with impedance 100 Ohms and above will require an external amplifier.

7. Alternative methods: amplifiers and firmware modifications

If the standard methods have failed, consider more radical options, which require additional costs or technical skills, but are guaranteed to solve the problem of quiet sound.

External amplifiers

For wired headphones:

• 🎧 FiiO A1 Xiaomi Headphone Amplifier – compact amplifiers connected to a 3.5 mm connector.
• 🔌 USB-C Amplifiers (e.g. Creative Sound Blaster) G3) — Suitable for modern smartphones without audio jack.

Modified firmware

Firmware like LineageOS or Pixel Experience doesn't have a hard MIUI volume limit, but installing them requires:

• 🔓 Unlock the bootloader (bootloader).
• 📱 Custom recovery installations (TWRP).
• 🔄 Backup of data (the process erases all files!).

Installing custom firmware will void the warranty and may cause the device to malfunction. Use this method only if other options have not worked.

⚠️ Note: When using modified firmware, functions like Widevine are turned off L1 (no HD Netflix, Disney.+). There may also be problems with work. NFC camera.

FAQ: Frequent questions about headphone volume on Xiaomi