How to increase the volume of Xiaomi wireless headset: from Android settings to firmware modification

Why Xiaomi wireless headphones are quietly playing - the main reasons

Xiaomi's wireless headsets are some of the most popular on the market due to their price/quality ratio, but many users are faced with the problem of insufficient volume, especially in noisy conditions (metro, street, gym), where even at the highest level the sound seems to be muted, the reasons can be both software and hardware.

First, the manufacturer’s limitations: Xiaomi (like other brands) often lowers the maximum volume in the firmware to protect users’ hearing from damage. Second, codec incompatibility: if your smartphone and headphones use different audio codecs (for example, SBC instead of AAC or aptX), sound can lose quality and volume. Third, the physical limitations of the speakers – cheap models (for example, Redmi AirDots or Haylou GT1) simply can not play bass at high volume without distortion.

Finally, don't discount the operating system settings: Android has separate volume controls for multimedia, calls and notifications, and hidden limits that you can bypass. Next, we'll look at all the ways to turn up the volume, from the simplest to the most advanced, root-based.

Method 1: Setting volume in the Bluetooth menu on a smartphone

The first thing to check is the individual volume settings for the connected headset. In Android (starting with version 8.0), each Bluetooth device can have its own volume level, independent of the general regulator.

How it works:

• 📱 Connect headphones to your smartphone via Bluetooth.
• 🔊 When playing music or calling, press the volume button and a slider will appear.
• ⚙️ Click on the gear icon (⚙️) Next to the slider or tap the device name (e.g., "Redmi AirDots 3 Pro").
• 🔍 In some firmware (MIUI, ColorOS is available here for media and calls.

If there is no cog icon, try an alternative path:

1. Open Settings → Connected devices → Bluetooth.
2. Find your headset on the list and tap it.
3. Check for the availability of the Sound Settings or Media Volume.

⚠️ Note: Some Xiaomi models (e.g. FlipBuds Pro) have a Bluetooth menu that hides the Absolute Volume item. If it's on, the smartphone and headphones sync volume levels, which may limit maximum audio. Turn off this option if it's active.

Connect headphones to the phone

Check the separate volume control for the device

Turn off "Absolute Volume" (if any)

Reset the headset after changes-->

Method 2: Use of a uniform equalizer (EQ)

The equalizer not only improves the sound, but also increases the perceived volume by raising certain frequencies. For example, increasing the medium and high frequencies (1-6 kHz) makes the voice of the interlocutor clearer, and bass (20-250 Hz) adds volume to the music.

In MIUI (Xiaomi firmware) there is a built-in equalizer:

1. Open the Music (or Mi Music) app.
2. During the playback of the track, tap the Equalizer icon (three strips).
3. Choose Bass or Rock presets, which usually amplify low and medium frequencies.
4. For fine-tuning, go to User and manually lift the sliders 3-6 dB in the 100-500 Hz range.

If there is no built-in equalizer, install third-party applications:

• 🎵 Wavelet (with support) LDAC and aptX – the best choice for Xiaomi headsets.
• 🎧 Equalizer FX — simple interface with presets.
• 🔊 Poweramp Equalizer – suitable for audiophiles (requires Poweramp).

Important: After setting up the equalizer, restart the headphones (turn off/on) so that the changes apply to the Bluetooth stream.

Method 3: Changing the Bluetooth codec to better transmit sound

The codec determines how audio data is transmitted from smartphone to headphones. By default, Android often uses SBC, the most versatile but not the most efficient codec. Switching to AAC, aptX or LDAC can improve sound quality and volume.

How to change the codec:

1. Turn on the developer mode on your smartphone: Settings → About the phone → MIUI version (shap 7 times)
2. Back to Settings → Additionally. → For developers.
3. Find the Bluetooth Codec and select: AAC is a good balance of quality and compatibility (works with most Xiaomi headsets). aptX or aptX HD is the best quality, but requires headphone support (there is in FlipBuds Pro). LDAC is the highest quality, but can cause delays.

⚠️ Note: If after changing the codec, the sound begins to "break" or delays appear, return to the codec. SBC or AAC. The problem may be an unstable Bluetooth connection or a weak smartphone processor (relevant to the budget models of Redmi).

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To check the current codec, install the Bluetooth Codec Checker app from Google Play, which will show active codec, bitrate and latency in real time.

Method 4: Modification of the headphone firmware (advanced method)

Some Xiaomi headsets (e.g. Redmi AirDots 2 or Haylou) GT1) They allow you to change the firmware to remove volume constraints, which is a risky method, but it gives you the maximum increase in sound. +30% compared to standard settings.

What will be required:

• 💻 Computer with Windows or Linux.
• 🔌 Firmware cable (usually Type-C or Micro-USB, depending on the model).
• 📦 Firmware with modified settings (see forums) 4PDA or XDA Developers on the model of headphones).
• 🛠️ Firmware (e.g., nRF Connect for Nordic chips or Qualcomm Flash Tool).

Step-by-step (example: Redmi AirDots 2):

1. Download the modified firmware (for example, AirDots_2_V1.7.1_Unlocked.hex).
2. Connect the headphones to the PC in firmware mode: 1. Turn off the headphones. 2. Press both touch buttons for 10 seconds - the indicators will flash red and blue. 3. Connect to the PC via cable.
3. Open nRF Connect, select the COM-port and load the firmware.
4. Wait until the cable is completed (don’t turn off the cable!).

⚠️ Attention: Incorrect firmware can cause the headphones to fail. Before the procedure, check: Compatibility of the firmware with your revision of the chip (check on the forums), availability of a backup of the original firmware, charge of the headphone battery (at least 50%). If after firmware headphones are not turned on, try to return the original firmware or contact the service.

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Firmware modifications are the biggest volume boosters, but they require technical skills and are risky, and they are only suitable for advanced users!

Method 5: Physical reworking of headphones (for bold)

If software methods don’t work, you can try to improve the earphone acoustics mechanically, which is suitable for models with removable earpieces (for example, Xiaomi FlipBuds Pro) or open design (for example, Redmi AirDots).

Options for further development:

• 🔇 Removal of the mesh on the speaker: In some models, the mesh in front of the speaker drowns out the sound. Carefully remove it with tweezers (risk of damaging the membrane!).
• 🎧 Replacement of masks: Dense silicone tips (such as from Sony or Comply) improve bass isolation and perception.
• 🔊 Body sealing: If there are slits in the headphones, they can be filled with a sealant (carefully, without hitting the speaker!).

Examples of Redmi AirDots 3 Pro:

1. Take the earbuds off your headphones.
2. Put a plastic mesh on the speaker with a thin screwdriver.
3. Blow the speaker with compressed air (for example, a canister for cleaning equipment).
4. Install larger sized hambushes (e.g. M instead of S).

⚠️ Attention: Physical modifications are warranty-free and can cause breakdown.Do not use force when disassembling - the case of Xiaomi headphones is often glued together and easy to damage.

Method 6: Sound amplifiers and external DACs

If all the previous methods fail, then you have hardware amplification, and you use this.

• 🎛️ Bluetooth amplifiers (e.g. FiiO) BTR3 or BT-W5) — connect to the smartphone and relay the sound to the headphones with amplification.
• 🔌 External DAC (Digital-to-analog converters, such as Xiaomi USB-C DAC) — Improves sound quality but requires wired connection.
• 📱 Power-up adapters (e.g. Apple Lightning to 3.5mm with Cirrus Logic chip) – suitable for smartphones without a 3.5mm connector.

Example of connection via FiiO BTR3:

1. Connect BTR3 to your smartphone via Bluetooth.
2. Connect Xiaomi headphones to BTR3.
3. In the amplifier settings, select High Gain (High Gain) mode.
4. Adjust the volume on your smartphone and amplifier.

Advantages of this method:

• ✅ There is no risk of damaging headphones (unlike firmware or revisions).
• ✅ Not only the volume, but also the sound quality improves (less distortion).
• ✅ Compatible with any device (not just Xiaomi).

Disadvantages:

• ❌ Additional costs (amplifiers cost between 2,000 and 10,000) ₽).
• ❌ Inconvenient to wear (another device on the neck or in the pocket).

Method 7: Alternative firmware for a smartphone (root)

If your Android smartphone has an unlocked bootloader and root rights, you can install custom firmware with modified audio settings.

• 📱 LineageOS - Supports ViPER4Android (power-processor).
• 🎵 Havoc-OS or Pixel Experience – have built-in enhancements for Bluetooth audio.
• 🔊 Magisk modules (e.g. Audio Modification Library or JamesDSP).

Instructions for ViPER4Android:

1. Install Magisk and download the ViPER4Android FX module.
2. Open the ViPER4Android app and turn on: Driver → Select "Bluetooth Compatibility Mode" Effects → Enable "Master Limiter" (set the threshold at -3 dB) Convolver → Download the pulsed response for headphones (e.g. "Harman Target")
3. Reboot your smartphone.

⚠️ Note: Not all custom firmware works correctly with Bluetooth audio. Check the reviews about compatibility with your smartphone and headphone model before installing. Also note that unlocking the bootloader resets all data on the phone!

FAQ: Frequent questions about increasing the volume of Xiaomi headsets