Quiet sound during phone calls is one of the most annoying problems of smartphone owners Xiaomi. Even at maximum volume, the voice of the interlocutor may sound muffled, especially in noisy places or when using budget models Redmi or POCO. Unlike a multimedia speaker, which is usually loud, an earpiece is often limited by factory security settings. But there are ways to get around these limitations - both software and hardware.

In this article we will examine 7 proven methodsto increase the speaker volume when making calls to Xiaomi, including hidden Android settings, engineering menus and specialized applications. Important: some methods require superuser rights (root), and incorrect actions can lead to damage to the speaker or loss of warranty. If you are not confident in your skills, contact the service center.

Let's start with the safest methods that do not require root access or disassembling the phone.

1. Checking basic volume and sound settings

Before you begin complex manipulations, make sure that the problem does not lie in the basic settings. On smartphones Xiaomi (especially on MIUI 12/13/14), the volume of the speaker is adjusted separately from the multimedia sound.

Do the following:

  • 📞 During a call: press the volume up/down buttons - a scale should appear on the screen Ring volume. Make sure it is at maximum.
  • 🔊 In settings: go to Settings → Sound and vibration → Volume and check the slider Ring.
  • 🚫 Do not disturb mode: turn it off in the notification shade or in Settings → Do Not Disturb —it can block the sound.
  • 🎧 Bluetooth devices: If headphones or a speaker are connected, the sound may automatically switch to them. Turn them off in the curtain.

If after these steps the volume has not changed, the problem lies deeper. Perhaps the culprit is dirty speaker, MIUI software limitations or hardware faults.

⚠️ Attention: On some models Xiaomi (for example, Redmi Note 10 Pro or POCO X3 Pro) after updating to MIUI 14 individual volume settings are reset. Check them after each major update.
📊 Which Xiaomi model do you have?
Redmi (any model)
POCO (any model)
Mi (flagship series)
Black Shark
Other

2. Cleaning the speaker from dust and debris

A common reason for a quiet sound is Clogged earpiece. Over time, dust, pocket lint or cosmetics get into its grille, which reduces the volume by 30-50%. You can clean the speaker yourself without disassembling the phone.

You will need:

  • 🧹 A soft toothbrush (new or clean).
  • 💨 A can of compressed air (optional).
  • 📎 Scotch tape or electrical tape (for fixing).
  • 🔦 Flashlight (to illuminate the speaker).

Step-by-step guide:

  1. Turn off the phone and take out the SIM card (if the speaker is near tray).
  2. Bring the flashlight to the speaker - you will see a grid with holes. If they are clogged, carefully walk over them dry with a toothbrush without pressing.
  3. For hard-to-reach places, use tape: cut a piece, fold it with the sticky side out and gently blot the mesh.
  4. If you have a can of compressed air, blow out the speaker in short bursts (no more than 1 second!) from a distance of 5–7 cm.

Do not use needles, toothpicks or wet wipes - this may damage the speaker membrane! After cleaning, check the sound in speakerphone mode (Call → Speakerphone) - if it becomes clearer, the problem was contamination.

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If the speaker continues to wheeze or the sound is interrupted, the membrane may be damaged. In this case, only replacement at a service center will help.

3. Using the engineering menu (without root)

Xiaomi, like other manufacturers, hides advanced sound settings in engineering menu. You can get there through a secret code without installing additional applications. This method works on most models, but the menu interface may differ.

How to open the engineering menu:

  1. Open the application Phone.
  2. Enter the combination: ##4636## or ##36446337## (for new models).
  3. Select item Hardware Testing → Audio.
  4. In section Speaker or Earpiece find parameters Max Vol or Volume.

In this menu you can:

  • 🔊 Increase the maximum volume value (parameters Max Vol or Level).
  • 🎛️ Check current signal levels (useful for diagnostics).
  • 🔄 Reset settings to factory settings (if experiments go wrong).

Caution: changing values above 150–160 (depending on the model) may result in sound distortion or damage to the speaker. The optimal value for most Xiaomi — 140–150.

⚠️ Attention: On some firmware MIUI the engineering menu is blocked. If the code does not work, try alternative methods or install the application MTK Engineering Mode (only for MediaTek processors).
Xiaomi model Working code of the engineering menu Max. safe value Max Vol
Redmi Note 10/11 ##4636## 145
POCO X3/X4 ##36446337## 150
Mi 11/12 ##4636## or ##2846579## 135
Black Shark 4/5 ##4636## 160 (but risk of distortion)

4. (without root)

If the engineering menu is not available or its settings do not help, try specialized applications. They work at the system level and can increase the volume of the speaker without superuser rights. The best options for Xiaomi:

Top 3 applications for enhancing sound:

  • 🔊 Volume Booster GOODEV: a simple booster with preliminary profiles for calls. 20–30% without distortion.
  • 🎛️ Precise Volume: fine-tuning volume levels for each type of sound (calls, multimedia, alarm clock).
  • 📞 Sound Amplifier (from Google): official application that enhances sound in headphones and speakers. Useful for people with hearing impairments.

How to set up Volume Booster GOODEV:

  1. Download the application from Google Play.
  2. Open it and select a tab Call Volume.
  3. Move the slider to 80–90% (the maximum may cause wheezing).
  4. Activate the option Apply on Bootso that the settings are saved after a reboot.

Warning: some applications (for example Super Volume Booster) require root access or display aggressive advertising. Avoid them if you are unsure of their safety.

Make sure the speaker is clean

Check reviews of the application before installation

Do not set the maximum values right away

Test the sound in a quiet place

Monitor the phone overheating-->

5. Changing configuration files (requires root)

If the previous methods did not help, and you have root access, you can edit the system files responsible for limiting the volume. This method gives the greatest increase in sound, but is also the most risky.

What files need to be changed:

  • /system/vendor/etc/mixer_paths.xml — the main sound configuration file.
  • /system/etc/snd_soc_msm/ — a folder with settings for specific processor models (Qualcomm, MediaTek).

Instructions (for experienced users!):

  1. Install a file manager with root support (for example, Root Explorer or Solid Explorer).
  2. Navigate to the path /system/vendor/etc/ and find the file mixer_paths.xml.
  3. Make a backup copy of it (copy it to an SD card or to the cloud).
  4. Open the file in a text editor and find the lines with rx-vol or speaker-vol.
  5. Increase the parameter values max by 10–20%. was max="80", do max="95".
  6. Save the file, reboot your phone and check the sound.

Critical warning: Incorrect editing of mixer_paths.xml may result in complete loss of sound or your phone getting stuck at boot. If you are not sure, contact a specialist.

⚠️ Attention: On some firmware MIUI after the update, system files are reset. If the sound becomes quiet again, repeat the procedure or use the module Magisk to automatically apply the changes.
What to do if the sound disappears after editing the files?

If after the change mixer_paths.xml the speaker stops work:

1. Return the original file from the backup.

2. Reboot the phone in Recovery Mode (press Power + Volume Up).

3. Reset the cache (Wipe Cache Partition).

4. If the sound does not return, reflash the phone via Fastboot or MI Flash Tool.

6. Hardware solutions: replacing the speaker or amplifier

If software methods do not help, the problem may be in the hardware:

  • 🔈 Speaker wear: Over time, the membrane loses its elasticity, and the sound becomes quieter.
  • 🔌 Problems with the sound amplifier: the microcircuit responsible for amplifying the signal may fail.
  • 🔋 Poor contact: oxidation or separation of the speaker cable from the board.

How to diagnose a hardware fault:

  • 🔊 Check the sound in your headphones - if it is loud, the problem is in the speaker or amplifier.
  • 📱 Listen for wheezing or interruptions - this is a sign of damage membranes.
  • 🔧 Gently press the area around the speaker - if the sound appears/disappears, poor contact is to blame.

Cost of repairs in service centers:

  • Replacing the speaker: 800–1500 ₽ (depending on the model).
  • Replacing the audio amplifier: 1500–3000 ₽ (requires soldering).
  • Cleaning contacts: 500–1000 ₽.

If your Xiaomi is still under warranty, do not disassemble it yourself - contact an official service center. A list of authorized service centers can be found on the website Xiaomi by phone model.

7. Alternative methods: speakerphone and Bluetooth

If you cannot amplify the sound of the conversational speaker, use workarounds:

3 working alternatives:

  • 📢 Speakerphone: during a call, click on the speaker icon in the call interface. The sound will come through the main (multimedia) speaker, which is usually louder.
  • 🎧 Bluetooth headset: connect wireless headphones or a speaker. Even budget models (for example, Redmi Buds) will provide clearer sound.
  • 🔄 Call forwarding: set up call forwarding to another phone with a loud speaker via Settings → SIM cards and mobile networks → Call forwarding.

For constant use of speakerphone, install the application Auto Speakerphone —it automatically turns on the speaker when you bring the phone to your ear or in noisy places.

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Speakerphone and Bluetooth headsets are the most reliable ways to solve the problem of quiet sound without the risk of damaging the phone.

FAQ: Frequently asked questions about the speaker volume on Xiaomi

🔊 Why did the sound during calls become quieter after updating MIUI?

Xiaomi often makes changes to the sound policy in new versions MIUI. For example, maximum volume limits have been tightened to protect speakers. Try resetting the sound settings in MIUI 14 Maximum volume restrictions have been tightened to protect speakers. Try resetting your audio settings Settings → Sound and vibration → Reset settings or use the engineering menu for manual adjustment.

📱 Is it possible to increase the speaker volume on Xiaomi without root?

Yes, most users are helped by:

  • Cleaning the speaker from dust.
  • Configuration through the engineering menu.
  • Applications like Volume Booster GOODEV.

root access is only needed to edit system files or install modules Magisk.

⚠️ What happens if you increase the volume too much in the engineering menu?

Exceeding safe values (Max Vol > 160) can lead to:

  • Sound distortion (wheezing, crackling).
  • Overheating of the speaker and its failure.
  • Protection will work MIUI, and the sound will automatically reset.

The optimal value is 140–150.

🔧 How to check if the speaker is damaged?

Do a test:

  1. Call another phone and listen sound.
  2. Turn on music through the speaker (in some models this is possible through the engineering menu).
  3. Check whether the sound is wheezing at maximum volume.

If the sound is intermittent or absent altogether, the speaker is faulty.

🛠️ How much does it cost to replace a speaker on a Xiaomi in the service?

The cost depends on the model:

  • Redmi 9/10: 800–1200 ₽.
  • POCO X3/X4: 1000–1500 ₽.
  • Mi 11/12: 1500–2000 ₽ (due to the complexity of disassembly).

On official services Xiaomi the price may be higher, but you will maintain the guarantee.