How to increase volume when talking on a Xiaomi Redmi phone: a step-by-step guide

Have you noticed that while calling on your Xiaomi Redmi, the person you are talking to is barely audible and you are not being heard well? The problem of low volume when talking is one of the most common among users of the low-end and mid-budget smartphones of the brand, the reasons can lie in both software settings and hardware limitations, from an incorrectly tuned sound amplifier to a clogged speaker or microphone.

In this article, we will look at 7 proven ways to increase volume during calls, from basic MIUI settings to hidden engineering menu features. It is important to understand that some methods require caution: for example, changing the parameters in the engineering menu can damage the speaker when the wrong values are used, so we will explain in detail which settings are safe and which are better not to touch unless absolutely necessary.

If you own a Redmi Note 10/11/12, Redmi 9/10 or newer series, the instructions are for you, and for owners of older devices (for example, Redmi 4X or Redmi 5), we will point out the features associated with the MIUI version and hardware platform.

1. Check basic volume settings in MIUI

Before you go into the technical details, make sure that the problem is not the basic settings. MIUI offers separate volume controls for media, alarm clocks and calls. Often users accidentally turn down the volume of a conversation, confusing it with the overall volume of the device.

To check:

1. When you call, press the volume button on the side panel of the phone. A slider will appear on the screen that says "Loudness of the call."
2. If the slider is already at its maximum, but the sound is still quiet, try to switch the phone to Loud Communication mode (the speaker icon in the call interface).
3. After the call is complete, check the sound settings in the Settings menu → Sound and vibration → Volume. Make sure the Call slider is not reset.

Note that on some Redmi models (e.g. Redmi Note 8 Pro), when you connect the headphones, the volume of calls automatically decreases, this is due to the protection of hearing in MIUI.

• 🔊 Go to Settings. → Special facilities → Sound.
• 🔕 Turn off the option to limit the volume of headphones.

⚠️ Warning: If wheezing or distortions appear in the speaker after the volume increases, this may indicate damage to the membrane, in which case further volume increase will exacerbate the problem.

2. Cleaning the speaker and microphone from dust and dirt

One of the most common causes of silent sound is clogging of speaker or microphone holes, and dust, pocket pile, or cosmetics residue (if the phone is often near the powder box) can block sound waves. On Redmi models, the speaker for conversations is usually located at the top of the screen, and the microphone is located at the bottom, next to the USB-C connector.

How to clean:

• 🧹 Use a soft toothbrush (new or clean) with a short pile. Carefully walk along the speaker and microphone grille.
• 💨 To remove dust from hard-to-reach areas, a compressed air can can is suitable (sold in electronics stores). Keep the balloon vertical and blow the holes with short presses.
• 🚫 Do not use toothpicks, needles or other sharp objects – they can damage the protective netting.

If the sound doesn't improve after cleaning, check the speaker for physical damage, for example, after the phone falls, the membrane may have deformed, in which case you will need to change the speaker at the service center.

3.Use of engineering menu to increase volume

If standard settings don't work, you can try changing the sound settings through the Engineering Mode, which allows you to fine-tune hardware components, including audio amplifiers. Careful: the wrong values can damage the speaker or microphone!

Instructions for Xiaomi Redmi:

1. Open the Phone app and type the combination: ##4636## Some models (e.g. Redmi 9) may require a code: ##36446337###
2. In the menu, select Hardware Testing → Audio.
3. Next, go to Loud Speaker Mode (for speaker) or Mic (for microphone).
4. Try to increase the Volume or Gain values by 5-10 units.

Recommended safe values for popular models:

⚠️ Warning: After changes to the engineering menu, restart your phone. If you start wheezing or crackling after the volume increases, immediately return the values to their place!

Record the current parameters |Revolve the volume by no more than 10% of the current |Check the sound after each change |Do not touch the parameters marked "Max" or "Limit" |Reboot the phone after settings

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4. Installation of third-party applications to amplify sound

If you don't want to take risks with the engineering menu, you can use specialized applications that work as an intermediate amplifier, increasing the volume by software processing the sound, and the downside of this method is the possible deterioration of quality (the appearance of noise) and battery discharge.

Top.-3 Proven applications for Xiaomi Redmi:

• 🔊 Volume Booster GOODEV — A simple booster with pre-profiles for calls. MIUI 12/13/14.
• 🎧 Precise Volume – allows you to adjust the volume for each type of sound (including calls). ADB fully functional.
• 📞 Sound Amplifier (from Google) – amplifies real-time sound, is useful for people with hearing impairments.

How to install and configure:

1. Download the app from Google Play (avoid third-party sources!).
2. Launch and give access to the sound settings.
3. In the Call Volume section (or similar), move the slider 20–30% above the standard maximum.
4. Test the sound during the call. If there's any distortion, reduce the amplification.

Note: On some Redmi models (e.g. Redmi Note 12 Pro+), audio modifier applications may conflict with built-in MIUI optimization. In this case, try turning off the Adaptive Sound option in your phone settings.

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Before installing the sound booster, check if MIUI Optimizer blocks it. To do this, temporarily turn off the Battery function → Optimize power consumption for the selected application.

5. Checking network settings and the operator

The sound quality of calls depends not only on the phone, but also on network parameters. If you have a weak signal (2G or 3G), the voice of the interlocutor may sound quieter due to compression of the audio codec.

What can be done:

• 📶 Switch to the switch. 4G (VoLTE) in network settings: Settings → SIM-maps and mobile networks → [Yours. SIM] → Preferred type of network → 4G (recommended).
• 🔄 Enable VoLTE (voice through) LTE), If it's supported by your operator, it improves the sound quality by transmitting voice over an Internet channel.
• 📞 Check if the service is activated by an operator's Economy Mode, which can reduce the quality of communication.

If you often call in areas with poor coverage (basement, elevator, suburban area), try:

• 📡 Use Wi-Fi Calling (Internet Calling) in the settings SIM-Enable the option of calling on Wi-Fi.
• 🔄 Switch to another. SIM-Card (if the phone supports Dual) SIM). Some operators perform better in certain regions.

⚠️ Warning: If VoLTE calls start to stop after you turn on, turn off the function and contact the operator.

Hardware problems: when without repairs can not do

If none of the software methods worked, it's probably a hardware malfunction, and here are the most common problems and their signs:

How to check if you need a replacement speaker:

1. Connect the wired headphones and check the volume of the sound when you call, and if the headphones are good, the problem is the dynamics.
2. Call from another phone and put your ear on the speaker, and if the sound is distorted or missing, the speaker is faulty.
3. Check if there has been any moisture (the indicators inside the phone turn red) moisture often disables the sound components.

If you want to repair your phone yourself, consider:

• 🛠️ For the Redmi Note 10/11 and a newer speaker soldered to the board, so the replacement requires soldering work.
• 🔧 On Redmi models 9/9A speaker is attached to the latches, but when disassembling it is easy to damage the screen plume.

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If the phone is warranty, do not open it yourself! contact an authorized Xiaomi service center - repair warranty can be free.

7. Alternative solutions: from headset to resetting settings

If you can’t turn up the volume, consider alternatives:

• 🎧 Use a Bluetooth headset. Modern headphones (such as Redmi Buds 4) have built-in microphones and amplifiers that provide clearer sound.
• 🔄 Reset network settings. Sometimes errors in mobile network configuration lead to sound problems: → SIM-maps and mobile networks → Resetting network settings.
• 📱 Put your phone back to factory settings, which will help if the problem is caused by a software failure!
• 🔊 Activate In-Car mode. MIUI There is a hidden mode that amplifies the sound for Hands-Free: Settings → Additionally. → Car mode.

If you make frequent calls in noisy places (such as on the street or in traffic), try:

• 🚗 Use an external microphone (such as a lavalier microphone) for better voice transmission.
• 📱 Enable noise cancellation in the call settings (if supported by your model).

FAQ: Frequent questions about volume increase on Xiaomi Redmi