How to increase volume on Xiaomi Mi A2 Lite: from standard settings to hidden features

Why is the Mi A2 Lite sound so quiet and can it be fixed?

Xiaomi Mi A2 Lite (codenamed daisy) has a balanced audio system, with one speaker on the bottom edge and a standard 3.5mm headphone jack, despite the budget price tag, but many users face the problem of low volume, especially when listening to music through a built-in speaker or while calling.

First, there are limitations of software. The Mi A2 Lite ran on a clean Android One, where the manufacturer artificially lowered the maximum volume level to protect the speakers from overload. Second, over time, dust and mechanical particles clog the speaker grille, physically muting the sound. Finally, don't discount the wear of the speaker membrane after 2-3 years of active use.

The good news is that 80 percent of the time, you can solve the problem software-free, disassembly-free, and here's all the methods available, from the simplest to the most advanced, including working with engineering menus and modifying system files. Importantly, before any manipulation, back up the data -- some methods require superuser rights (root).

Method 1: Standard settings for Android and MIUI

Start with the basics – often users are simply unaware of the hidden options. The Mi A2 Lite (especially Android 10/11) has a few little-known regulators:

1. Media and notification volume. Press the physical volume button, then tap the gear. ⚙️ In the top right corner, you can split the media, call and notification regulators.
2. Adaptive sound. Go to Settings → Sound → Adaptive sound and turn on the option. The system will automatically adjust the equalizer to your headphones.
3. In the same section, find the Sound Effects → Bass amplifier. It won't increase the overall volume, but it will make the sound more intense.

If these settings do not work, check if the Do Not Disturb mode is activated (the bell icon with cross-out in the notification panel). It is also worth turning off the option Safe Mode in the sound settings - it limits the maximum volume to protect hearing.

💡

The Mi A2 Lite with MIUI 12.5+ firmware has a Dynamic Range option in the audio settings, which can add 5-10% volume by reducing the difference between quiet and loud audio snippets.

Method 2: Cleaning the speaker and checking hardware malfunctions

Before you go through the settings, make sure that the problem is not mechanical. A dust-filled speaker is one of the most common causes of quiet sound.

• 🧹 Use a soft brush (for example, for drawing) or compressed air (a balloon). Carefully walk along the speaker grille without pressing.
• 🎵 Turn on the speaker test on your phone using the code ##4636## (Audio section). If the sound is distorted or missing, the hardware problem is not available.
• 🔊 Check the density of the back cover. A2 Lite it sometimes moves away, creating a gap that "eats" part of the sound waves.

If the sound hasn't improved after cleaning, try connecting an external speaker via Bluetooth. If the sound is normal, the problem is exactly in the hardware of the smartphone. In this case, only the service center will help (replacing the speaker will cost 800-1500 rubles).

Method 3: Engineering menu and hidden sound settings

Xiaomi Mi A2 Lite hides the advanced audio settings in the engineering menu.

1. Open the Phone app.
2. Enter the code ##36446337## (or #4636## for the alternative menu).
3. Go to the Hardware Testing → Audio section.

Here, we can test all of the audio devices on the smartphone, and we're interested in the parameters.

• 🔊 LoudSpeaker Mode is a test of the main speaker, and you can increase the value of Max Vol to maximum volume. 150-160 (default 128).
• 🎧 Headset Mode - Headset Max Vol settings can be raised to 140.
• 📞 Receiver Mode - Speaker volume (for calls) Optimal value — 130-135.

Warning: exceeding the values above 160 can lead to distortion of the sound or damage to the speaker.

Make a backup copy of the data|Record the current parameter values|Increase the volume gradually (+10 at a time)|Check the sound after each change.-->

Method 4: Apps for sound amplification (without root)

If the standard methods don't work, third-party utilities will come to the rescue. A2 Lite will do:

• 🔊 Volume Booster GOODEV — louden 20-30% It's software-based, it works without root, but it can distort at maximum levels.
• 🎛️ Equalizer FX — It allows you to fine-tune the equalizer and amplify the individual frequencies, which is useful if the problem is lack of bass or high frequencies.
• 📱 Precise Volume – gives you access to 100 volume control steps (instead of the standard 15) and allows you to adjust the level more accurately to your needs.

Install one of the applications (for example, Volume Booster) and follow the instructions:

1. Open the app and give access to the sound settings.
2. Activate the Boost Media Volume option.
3. Move the slider 10-15% above the standard maximum.
4. Check the sound – if wheezing appears, reduce the amplification.

⚠️ Note: booster applications consume additional CPU resources and can reduce battery life on the computer. 5-10%. With prolonged use, monitor the temperature of the smartphone - overheating increases wear of the speaker.

Method 5: Modification of system files (root required)

For advanced users who are ready to get root rights, there is a radical method - file editing. mixer_paths.xml, This is a way of maximizing volume, but it requires caution.

Instructions:

1. Get root through Magisk (instructions for the Mi A2 Lite are available on the 4PDA forum).
2. Install a file manager with root support (such as Root Explorer).
3. Cross the path. /vendor/etc/mixer_paths.xml And back up the file.
4. Open the file in the text editor and find the lines with the parameters: <path name="speaker"> <ctl name="RX1 Digital Volume" value="84" /> </path> Increase the value to 90-95 (no higher!).
5. Save the file, restart the smartphone.

This method increases volume by up to 40-50%, but has risks:

• 🚨 File damage can cause sound loss completely.
• 🔇 Too high values will cause distortion and wheezing.
• 🔧 After the firmware update, the changes will reset.

💡

Editing mixer_paths.xml — The most efficient way, but only for power users, is to make a single character error that can make a phone "silent".

Frequent Mistakes and How to Avoid Them

When trying to turn up the volume on the Mi A2 Lite, users often make common mistakes that only make things worse:

1. Ignoring hardware problems: If the speaker is physically damaged, no software method will help. First, check it on another device or service center.
2. Increase the volume too sharply, raise the level gradually (5-10 units) so as not to damage the membrane.
3. Use of incompatible apps: Some audio boosters are optimized for Samsung or Huawei and may conflict with Xiaomi.
4. No backup. Always save the original versions before changing system files.

Another common problem is headphone incompatibility: Some models (especially those with high impedance) require additional amplification, in which case an external USB-C amplifier (such as the FiiO KA3) or an adapter with its own DAC will help.

FAQ: Answers to popular questions