How to increase the volume of the speaker on Xiaomi Redmi Note 8 Pro: from standard settings to engineering menu

The faint sound of the Xiaomi Redmi Note 8 Pro is a common problem that smartphone owners face, and even at maximum volume, it can be difficult to hear, especially in noisy places or when using hands-free, and can be due to both the software limitations of MIUI and the hardware features of the model.

In this article, we will look at all the working ways to increase the volume of a speaker, from basic settings to hidden functions of the engineering menu and third-party applications. It is important to understand that some methods require caution: improper actions can lead to damage to the speaker or malfunction of the phone, we will point out the risks and give recommendations on how to avoid them.

If you're ready to improve the sound quality of your calls, read on. Let's start with the simplest and safest ways.

1. Checking basic volume settings

Before you start complex manipulations, make sure that the problem is not in the standard settings. On the Redmi Note 8 Pro, the volume of the conversational speaker is adjusted separately from the media sound and alarm clock.

Open the Settings → Sound and Vibration menu. Here you'll see three sliders: media, alarm clock and calls. Make sure the call volume slider is set to maximum. Also check if Do Not Disturb or Quiet Mode is activated - they can automatically turn the volume down.

If the slider is already at its maximum, but the sound is still quiet, try restarting the phone. Sometimes MIUI malfunctions lead to improper processing of the sound signals. After restarting, check the volume again.

• 🔊 Media – volume of music, video, games.
• 📞 Calls - the volume of the speaker.
• ⏰ Alarm clock – the volume of the alarm signals.

⚠️ Attention: If the volume is not maintained or resets after changing the settings, this may indicate a system failure, in which case resetting the settings to the factory will help (we will discuss this below).

2. Cleaning dynamics from dust and debris

One of the physical causes of silent sound is a pollution speaker. On the Redmi Note 8 Pro, the speaker is located at the top of the screen, next to the front camera, and over time, it gets dust, pile from pockets or skin particles, which worsens the sound.

To clear the speaker:

1. Turn off the phone.
2. Take a soft brush (for example, for makeup) or a toothpick wrapped in a thin fabric.
3. Carefully walk along the speaker grille without pressing hard.
4. To remove dust from the inside, you can use a can of compressed air (sold in electronics stores).

Don't use sharp objects or wet wipes, which can damage the speaker membrane, and if the sound doesn't improve after cleaning, the problem isn't the pollution.

3.Use of the engineering menu (without root)

The Xiaomi Redmi Note 8 Pro, like other smartphones on the MediaTek Helio G90T, has a hidden engineering menu where you can fine-tune your audio settings.This method does not require root rights, but requires caution - incorrect changes can lead to crashes.

To open the engineering menu:

1. Open the Phone app.
2. Enter the combination: ##36446337## (or #4636## for the alternative menu).
3. Select the Hardware Testing option → Audio.

You'll see a few tabs on the Audio menu, and we're interested in Normal Mode (normal mode) and Headset Mode (headphone mode).

• 🔈 Sph (microphone) - don't touch.
• 📢 Sph2 Or Receiver, which is a conversational speaker.
• 🎧 Speaker – external speaker (for music).

Increase the Max Vol (maximum volume) for the Receiver by 5-10 units. Don't push the value above 160 - this can cause audio distortion or damage to the speaker. After the changes, press Set and restart the phone.

⚠️ Warning: If the sound becomes hoarse or intermittent after the changes in the engineering menu, immediately return the values to standard.

Record the current volume values|Do not exceed the value of 160 Receiver|Do not change the microphone settings (Sph)|Make a backup copy of the data-->

4.Applicants for sound amplification

If the standard methods didn't work, you can use third-party applications, and they work on two principles:

• 🔧 Sound amplifiers – increase volume due to software processing.
• 🎛️ Equators – adjust frequencies, making the voice of the interlocutor clearer.

The best apps for the Redmi Note 8 Pro:

Install one of the applications (like Volume Booster) and turn up the volume of the speaker manually. Start at +10-15% and check the sound quality. If you have wheezing, reduce the amplification.

Important: Some applications require permission to change system settings. If they don't work after installation, check permissions in Settings → Applications → Permissions.

💡

Before installing the sound amplifier, check for MIUI 12/13/14 compatibility reviews – some applications may not work properly on newer versions of the shell.

5. Resetting settings to factory

If the volume problem occurred after updating MIUI or installing applications, resetting will help, which will return all sound parameters to standard values and eliminate software failures.

How to reset:

1. Go to Settings → About the phone → Reset settings.
2. Select Reset all settings (does not delete files) or Reset to factory (deletes everything except data on the dataset) SD-map).
3. Confirm the action and wait for the reboot.

After reset, check the volume of the speaker. If the problem was a software failure, the sound should normalize. If not, the reason is probably hardware.

⚠️ Note: Before reset, back up your important data. On the Redmi Note 8 Pro, you can use Settings to do this. → Additionally. → Backup and reset.

6. Checking for hardware malfunctions

If none of the software methods worked, the reason for the quiet sound may lie in a malfunction of the speaker or other components.

• 🔊 Membrane damage speaker - the sound wheezes or is absent at all.
• 🔌 Contact oxidation – the sound is interrupted or disappears when you press the body.
• 📱 Problems with the plume – the speaker is unstable, especially after a fall.

To diagnose a hardware malfunction:

1. Call your phone and put it on speakerphone, and if the sound is loud through the external speaker and the sound is quiet through the conversational speaker, the problem is with the latter.
2. If the sound is normal, the speaker or his contacts are faulty.
3. Easy tap the area around the speaker, and if the sound appears or changes, it's a sign of poor contact.

If you suspect a hardware breakdown, you should contact a service center. Self-repair without experience can exacerbate the problem. The cost of replacing a conversational speaker with a Redmi Note 8 Pro in 2026 is about 800-1,500 rubles (depending on the region).

7. Alternative methods: Bluetooth and external speakers

If you can not increase the volume of the speaker, consider alternative options:

• 🎧 Bluetooth Headset – Connect wireless headphones for calls.
• 🔊 External speaker – some models support connectivity via USB-C.
• 📱 Speaking – Use an external speaker on your phone (but it’s uncomfortable in public places).

To connect the Bluetooth headset:

1. Turn on the headset and activate the pairing mode.
2. On the phone go to Settings → Bluetooth.
3. Select the device from the list and confirm the connection.
4. During the call, the sound will be automatically transmitted to the headset.

This won’t solve the problem with the speaker, but it will make communication more comfortable.If you make frequent calls in noisy places, buying a quality Bluetooth headset (for example, Xiaomi Mi True Wireless Earbuds) may be the best solution.

💡

If all the software methods have been tried and the sound is still quiet, it's probably a hardware problem, and in that case, it's better to go to a service center than risk damaging the phone yourself.

FAQ: Frequent questions about the loudspeaker volume on the Redmi Note 8 Pro