While talking on Xiaomi smartphones, many users are faced with the problem of quiet sound in conversational dynamics. This can be due to factory restrictions, pollution of the speaker or software settings. Unlike multimedia speakers, which often sound loud, the conversational speaker (earpiece) has limited power to protect the hearing. However, there are several ways to safely increase its volume without harming the device.
In this article, we will discuss both official methods (through system settings and engineering menus) and alternative solutions, from cleaning the speaker to using third-party applications. It is important to understand that excessive amplification of the sound can lead to distortion or even damage to the speaker, so all recommendations should be applied with caution. If the problem is caused by a hardware malfunction (for example, a departed contact or a damaged membrane), software methods will not help - repair will be required.
1. Checking basic sound settings
Before you resort to radical measures, make sure that the problem is not in the standard settings. On Xiaomi smartphones (including the Redmi, POCO and Mi models), the volume of the conversational speaker is adjusted separately from the multimedia sound.
- 🔊 Volume during the call: During the call, press the volume buttons and a slider will appear on the screen that says "Call." Make sure it is set to maximum.
- 📵 Do Not Disturb Mode: Go to Settings → Sound and vibration → Do not disturb and disable this mode if it is active.
- 🔄 Resetting sound settings: Sometimes resetting to factory settings helps: Settings → System and device → Resetting settings → Resetting the sound settings.
If the sound remains quiet after these manipulations, the problem may be software limitations or hardware malfunctions, for example, on some Xiaomi models (for example, the Redmi Note 10 Pro or POCO X3 Pro) after the MIUI update, the volume of the speaker is artificially lowered to meet European standards, in which case the engineering menu will help.
2.Use of the Engineering Menu (MTK/Qualcomm)
The engineering menu is a hidden settings section that allows you to fine-tune hardware settings, including the volume of speakers. The login method depends on your smartphone's processor: MediaTek (MTK) or Qualcomm Snapdragon. You can determine the type of processor in the CPU-Z application (SOC section).
⚠️ Attention: Incorrect settings in the engineering menu can cause malfunctions in the phone. Do not change the settings if you are not sure about their purpose.
For smartphones on MediaTek (MTK):
- Open the Phone app and type in the combination: ##36446337## (or #4636## → Phone Information → Choice Test Type → Audio).
- Select Hardware Testing → Audio → Normal Mode.
- In the Sph (microphone) or Receiver (talk speaker) section, increase the Max Vol values by 5-10 units (no more than 255!).
- Press Set and restart the phone.
For smartphones on Qualcomm Snapdragon:
- Enter the dialer: ##4636##.
- Go to Information → Audio.
- Find the Earpiece Gain and increase it by 1-2 dB (e.g., from 6 to 7).
- Save the changes and restart the device.
Record the current speaker settings
Use only recommended combinations of codes
Do not change the microphone settings (Sph) without the need to
Reboot your phone after the changes-->
If the engineering menu is not available or changes are not saved, it may mean that the manufacturer has blocked access to these settings, in which case third-party software will help.
3. Volume-up applications
If system methods fail, you can use specialized applications that work on the principle of a sound amplifier, but have limitations: some Xiaomi models block the change in the volume of the conversational speaker due to security policies.
- 🔊 Volume Booster GOODEV — It allows you to increase volume by 20 to 30 percent through software-based sound processing, and it supports most Xiaomi models, but requires rights. ADB fully functional.
- 🎧 Sound Amplifier (from Google) - amplifies the sound in headphones and speakers, but has a weak effect on the conversational speaker.
- 🛠️ MTK Engineering Mode is an alternative way to access the engineering menu for MediaTek devices. Available on Google Play, but requires caution when using it.
⚠️ Attention: Sound amplifiers can cause distortion or overload of the speaker at maximum settings. Do not set the volume above 80% of the maximum value in the application to avoid damage to the device. MIUI Optimization in the developer settings, which can lead to unstable system operation.
To set the ADB rights (required for some applications) do:
adb shell pm grant com.goodev.volume.booster android.permission.WRITE_SECURE_SETTINGS4.Bleaking the conversational speaker
A common cause of silent sound is contamination of the speaker with dust or moisture. On Xiaomi smartphones, the speaker is located at the top of the screen (near the front camera) and easily clogged.
- 🧹 Soft brush: Use a brush with soft pile (for example, for makeup) or a toothbrush to gently remove dust from the speaker grille.
- 💨 Compressed air cylinder: Blow the speaker with short presses, holding the balloon at a distance of 5-10 cm!
- 🧲 Scotch or sticky tape: Carefully press a piece of tape to the speaker grille and sharply tear off - this will help remove small particles.
❌ What can't be done:
- Using sharp objects (needles, toothpicks) - this can damage the speaker membrane.
- Blow the speaker with your mouth – moisture from your breath can settle inside and worsen the sound.
- Apply liquids (alcohol-containing wipes, water) - this will lead to corrosion of contacts.
How to check if the speaker is contaminated?
If the sound has not improved after cleaning, the problem may be a hardware malfunction (for example, a broken contact or a damaged membrane), in which case only the service center will help.
5. Update firmware and reset settings
Sometimes, quiet sound in conversational dynamics is associated with software errors in the firmware. Xiaomi regularly releases updates to correct such bugs.
- Go to Settings → About the phone → System update.
- Click on "Check Updates" and install the latest version of MIUI.
- After the update, reset settings (not data!): Settings → System and device → Reset settings → Reset all settings.
If the problem has occurred after the update, you can try to roll back to the previous version of the firmware.
- Download the desired version of MIUI from the official Xiaomi website.
- Go to Settings → About Phone → The MIUI version and click on it 7 times to activate the developer mode.
- Return to Settings → Additional → For developers and enable “OEM Unlock” and “USB Debugging”.
- Connect your phone to your PC and use the Mi Flash Tool to run the old version.
💡
Updating the firmware is the safest way to fix software errors of sound, but it will not help with hardware malfunctions.
⚠️ Attention: Firmware rollback may cause data loss and bootloader lock.Before the procedure, make a backup through Settings → System and device → Backup.
6. Checking microphone and network settings
Sometimes the quiet sound in the tube is not connected to the speaker, but to the microphone or network settings, for example, if the person is not hearing you well, they may complain about the "quiet communication", although the problem is on their side, to diagnose:
- 🎤 Microphone check: Record a voice message on WhatsApp or Recorder. If the recording is quiet, the problem is with the microphone, not the speaker.
- 📡 Network quality: In places with poor signal (e.g., in areas with poor signaling, 2G instead 4G) The sound may become quieter. Switch to 3G/4G In Settings → SIM-maps and mobile networks → Preferred type of network.
- 🔄 VoLTE and VoWiFi: These technologies improve communication quality. Activate them in Settings → SIM-maps and mobile networks → Additionally. → Volte/Whife-challenge.
If the microphone is not working well, try cleaning the hole (located at the bottom of the phone) or checking the sensitivity settings in the engineering menu (Audio → Mic section). On some Xiaomi models (such as the Redmi 9 or POCO M3), the microphone may shut down due to oxidation of the contacts - in which case only repair will help.
Hardware malfunctions and repairs
If none of the software methods worked, the problem is likely hardware. Here are the most common faults of the conversational speaker on Xiaomi:
| Symptoms. | Possible cause | Decision |
|---|---|---|
| It sounds very quiet, even at maximum. | Factory restriction or damage to the dynamics membrane | Replacement of the speaker or firmware of the modified core |
| The sound is distorted, wheezing. | Contamination speaker or departed contact | Cleaning or soldering contacts |
| The sound disappears when the phone is tilted. | Bad contact plume speaker | Disassembly and inspection of the plume |
| No sound at all. | Failure of the speaker or audio chip | Diagnostics at the service center |
The cost of replacing the speaker in the service center Xiaomi ranges from 800 to 2000 rubles (depending on the model).If the phone is warranty, repair will be free. Self-replacement is possible, but requires experience with small electronics and specialized tools (for example, iOpener for heating glue).
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Before visiting the service center, make a backup of the data - during repairs, you may need to reset the phone to factory settings.
On Xiaomi IP-certified models (such as the Redmi Note 11 Pro+ 5G), the speaker often fails due to moisture, even if the phone is not sinking, in which case the warranty does not apply, as damage is classified as “mechanical”.