How to increase the volume of the speaker on Xiaomi when talking: from settings to engineering menu

During a phone conversation, do you have to press your smartphone to your ear to hear the other person? Or, conversely, your friends complain that they can not hear you through the Xiaomi speaker? The problem of low volume when calling is relevant for many models of the brand, from the budget Redmi Note to the flagship Mi 13.

In this article, we will discuss 7 working methods for raising the volume of the speaker during conversations, from basic MIUI settings to hidden parameters of the engineering menu. It is important to understand that some methods require caution: improper actions can lead to distortion of the sound or even damage to the speaker.

If the problem comes on suddenly, first rule out mechanical damage, such as moisture, falls or clogging of the speaker grille. In 30% of cases, the low volume is due to physical defects, not settings.

1. Check basic volume settings in MIUI

Before digging deep into system settings, make sure the problem isn't solved by standard means. MIUI has separate volume controls for media, alarm clocks and calls. Often users accidentally hit volume buttons during a conversation, lowering the level to a minimum.

How to check:

1. During the call, press the volume button on the side panel of the smartphone. A slider will appear on the screen that says "Call Volume".
2. If the slider is already at its maximum, but the sound is quiet, try to turn off and turn on the speaker again (the speaker icon in the call interface).
3. After the conversation, check the general sound settings: go to Settings → Sound and vibration → Volume and make sure the Call slider is not reset.

On some Xiaomi models (e.g. Redmi Note 10 Pro or Poco) F3) Bug: After the update MIUI individual volume settings are reset for SIM-If you have two SIMs, check the settings for each separately in the Settings menu. → SIM-maps and mobile networks → Call settings.

⚠️ Warning: If after the volume increases in the settings, the sound remains quiet, but everything works fine in the speakers or headphones - the problem may be in the speaker connector (contact oxidation) or in the speaker itself.

2. Enabling the "Sound Amplifier" mode in the special features settings

MIUI has a hidden feature that increases the volume of sound for people with hearing impairments, and it works for a conversational speaker, but you need to activate it through a special feature menu.

Instructions for inclusion:

• 📱 Open the Settings. → Special facilities → Sound amplifier.
• 🔊 Activate the switch at the top of the screen.
• 🎚️ In the section Call settings, move the slider Sound amplification to the maximum value.
• 🔄 Reboot your smartphone to make changes take effect.

This method works on most Xiaomi models, but on some firmware (for example, MIUI 14 for Redmi Note 12), the menu may be called differently: Settings → Additional → Special Features → Audio. If you do not find an item, search by settings (the magnifying icon in the upper right corner).

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If after turning on the amplifier, the sound began to distort (wheezing, crackling), reduce the gain to 70-80%.

3. Engineering menu setting (MTK/Qualcomm)

For advanced users, there is a way to increase volume through the engineering menu, a hidden section with low-level settings. Careful: the wrong changes can cause the speaker to malfunction!

How to open the engineering menu:

• 📞 For Qualcomm processors: ##4636## For MediaTek processors: ##36446337## or #8255##
• 🔧 In the menu, select Hardware Testing. → Audio (or Audio on Russian-language firmware).
• 🎛️ Scroll to Normal Mode or Receiver (Speaker).
• 🔢 Increase the settings: Max Vol (maximum volume) – set 160 or 200 (usually 128 by default). Type – select Sip or Voice Call.
• 💾 Click Set to save and restart the phone.

On models with a Snapdragon processor (for example, Poco F5, Xiaomi 13), the change in the parameters in the engineering menu can be reset after the MIUI update. To fix the settings, you need to edit system files (only for experienced users).

⚠️ Attention: On some firmware (MIUI 13 and later) the engineering menu is blocked for editing. Attempting to change the settings may cause an "Operation not allowed" error.

4.Use of third-party applications to amplify sound

If system methods didn't work, you can use apps from Google Play that increase volume through software-based audio processing.

Top.-3 volume-boosting:

• 🔊 Volume Booster GOODEV — It's a simple booster with presets for calls. MIUI 12-14.
• 🎧 Precise Volume – allows you to fine-tune the volume for each type of sound (including calls). ADB fully functional.
• 📞 Sound Amplifier (from Google) – amplifies real-time sound but can add noise when signal is weak.

How to set up Volume Booster GOODEV:

1. Install the app from Google Play.
2. Start and select the Call Volume tab.
3. Move the slider 120-130% (no higher to avoid distortion!).
4. Activate the Auto Boost option so that the amplifier is turned on automatically when calling.

Warning: Boost apps put a load on the processor and can drain the battery faster by 10-15%. On weaker models (Redmi 8A, Redmi 9C), this sometimes leads to slowdowns during a conversation.

Make sure the speaker is not physically damaged

Check the available space on the phone (need ≥500 MB)

Disable other applications for sound (equalizers, equalizers)

Backup of the sound settings in MIUI

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5. Cleaning dynamics from dust and debris

A common cause of silent sound is clogging of the speaker grille with dust, villi or tobacco deposits, especially for models with a lower speaker (Redmi Note 11, Poco X4), which is often clogged in pockets.

How to Clean Your Speaker Safely:

• 🧹 Use a soft toothbrush (new!) with a short pile. Carefully walk along the speaker grille in circular motions.
• 💨 For severe pollution, a compressed air can can is fine (sold in electronics stores). Keep the balloon vertically at a distance. 5-7 speaker.
• 🧴 To remove the greasy spots, moisten the cotton swab in isopropyl alcohol (at least 70%) and gently wipe the grille. Don't press hard!
• 🚫 It is forbidden: to use needles, toothpicks, wet wipes or vacuum cleaner (you can damage the membrane of the speaker).

If the sound hasn't improved after cleaning, check the speaker for distortion: turn on the music at maximum volume. The appearance of wheezing or cod indicates damage to the membrane - in this case, only a replacement speaker will help.

6. Resetting the sound settings to factory

Sometimes the problem is a system audio configuration failure, which can occur after a MIUI update, custom firmware installation, or application conflict, in which case only a sound reset (without data loss) will help.

How to reset the sound settings:

1. Open Settings → System and device → Additional → Resetting.
2. Select Reset audio settings (on some firmware, the item is called Reset Media settings).
3. Confirm the action and wait for the phone to restart.
4. After turning on, check the volume during the test call.

If this method didn’t help, try resetting all settings (without deleting files):

1. Go to Settings → About the phone → Reset settings.
2. Choose Resetting (not to be confused with Delete All Data!).
3. After the reboot, reset the sound, starting with the Special Features section.

⚠️ Attention: On models with MIUI 14 and later resetting the audio settings may require you to enter a password from your Mi Account. If you do not remember it, first link the device to your account in Settings → Xiaomi account.

7. Checking hardware faults

If none of the software methods worked, the problem is likely hardware, and here are the signs that indicate a speaker or motherboard malfunction:

Symptoms of hardware problems:

• 🔇 The sound disappears completely or becomes very quiet only during calls (all is normal in the speakers / headphones).
• 🔊 Extraneous noises appear: cracking, squeaking, distortion even at minimum volume.
• 📱 The speaker works only in the hands-free mode.
• 💥 The problem appeared after a fall, moisture or disassembly of the phone.

The most common hardware reasons:

For a diagnosis, contact Xiaomi’s service center or a trusted repair center. Before visiting, back up the data – some malfunctions (such as audio codec problems) may require a complete flashing of the device.

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If your Xiaomi is guaranteed, don't try to repair the speaker yourself! Opening the case will void the warranty. Contact an authorized service center with a check and a phone box.

FAQ: Frequent questions about the volume of the speaker on Xiaomi