Xiaomi Redmi Note 10 Pro is one of the most popular mid-range smartphones, but even its owners sometimes face problems with the microphone: a quiet voice in calls, noise during recording or complete lack of sound. The reasons can be in both software settings and hardware malfunctions. In this article, we will analyze all the ways of setting up the microphone, from basic parameters in the phone menu to hidden engineering modes and equipment diagnostics.
The Redmi Note 10 Pro features three microphones: the main one (bottom of the device), the noise suppressor (top) and the additional one for active noise cancellation (ANC). Their work together provides clean sound in calls and recording, but requires proper calibration. If you notice that the interlocutor does not hear you well or the recording is accompanied by extraneous noises, do not rush to carry the phone to the service, in 80% of cases the problem can be solved by yourself.
1. Check the basic microphone settings in MIUI
Before you dig deeper, make sure that the problem isnβt with the settings disabled or the apps conflicting, starting by checking the microphone permissions for key services:
- Open Settings β Applications β Permissions β Microphone.
- Make sure that the Phone, Recorder and instant messengers (WhatsApp, Telegram) are allowed access.
- If the application is not in the list, run it and grant permission when requested.
Check the call settings further:
- π Go to Settings. β SIM-maps and mobile networks β Call settings.
- π Activate Voice Improvement option (if available in your version) MIUI).
- π§ If you use a headset, select Bluetooth Priority for wireless headphones.
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After the update MIUI lost sound in calls, try resetting the network settings: β SIM-map β Network resets. This often solves problems with routing audio streams.
Also worth checking is Do Not Disturb mode, which sometimes locks the microphone to save charge, open the notification panel and make sure the mode is turned off or configured to resolve calls.
2. Diagnostics of hardware problems of the microphone
If the software settings didn't help, there may be a problem with the microphones being physically damaged or contaminated.Redmi Note 10 Pro has three microphones:
| Microphone | Location. | Appointment | Signs of malfunction |
|---|---|---|---|
| Basic | Lower end (near USB-C connector) | Calls, voice recordings. | The interviewer canβt hear you at all or the sound is very quiet. |
| Noise-suppressing | Upper end (near the 3.5mm connector) | Suppression of external noise | The recordings are made of extraneous sounds, echoes. |
| Additional (ANC) | Top of the back panel (under the camera) | Active noise cancellation | Noise suppression does not work in headphones |
To check the availability:
- Use a built-in voice recorder (Tools β voice recorder) and record your voice from different distances (5 cm, 30 cm, 1 m).
- Call another phone and check the sound quality in the speaker and headset.
- Examine the microphones for dust, moisture, or mechanical damage, often just cleaning the holes with a soft brush.
How to check the microphone through the Engineering Menu?
β οΈ Warning: If the microphone stopped working after the phone falls or moisture gets in, do not try to disassemble the device yourself - this can lead to damage to the plumes.
3. Customize microphone to record voice and streams
If you use the Redmi Note 10 Pro to record podcasts, streams or video calls, standard settings may not be enough.
- π€ In applications like Zoom or OBS Select Microphone (Xiaomi Redmi Note 10 Pro) instead of Speaking.
- π§ In the voice recorder, activate the option to improve speech (available in the MIUI 12.5+).
- π§ For streams, connect an external microphone through USB-C Bluetooth 5.0 will improve the quality of the product.
- π Turn off Noise Reduction in the app settings if it distorts voice.
To fine-tune the sensitivity:
- Install the Microphone Amplifier app from Google Play.
- Turn on the microphone amplification option and select the gain level (we recommend starting with +10 dB).
- If wheezing appears, reduce the gain or turn it off altogether.
Important: When using external microphones via USB-C, turn off the built-in microphones in the app settings to avoid echoes and interference.
4. Solving microphone problems in the headset
A frequent complaint of Redmi Note 10 Pro users is that the microphone does not work when connecting wired or wireless headphones.
| Problem. | Possible cause | Decision |
|---|---|---|
| The headset microphone is not working. | Contaminated 3.5mm connector or Bluetooth headphone contacts | Clean the connector with alcohol, reconnect the headphones |
| Interlocutor hears an echo | Conflict between microphones of the headset and the phone | Turn off Noise Reduction in Call Settings |
| A quiet sound in the headphones | Volume limitation in MIUI | Turn off Safe Sound Mode in Settings β Sound |
For Bluetooth headsets:
- π Reconnect the headphones and select a profile A2DP (for music or HFP (call-in).
- π§ In Bluetooth settings (Settings) β Connected devices β Settings (βοΈ)) Activate high-quality sound.
- π± Update the firmware of the headphones through the official manufacturerβs app (for example, Mi Headphones for Xiaomi devices).
Check the integrity of the cable (for wired headphones)
Clean the 3.5mm connector from dust
Reboot your phone and reconnect the headset
Update the firmware of Bluetooth headphones
Reset network settings (Settings) β SIM-map β Resetting settings)
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β οΈ Note: If you have connected the headset through USB-C The microphone is not detected, try using it. OTG-externally powered adapter: Some headphone models require extra voltage to work properly.
5. Resetting and software update
If the microphone worked before, but stopped after updating or installing applications, resetting the settings will help:
- Go to Settings β About the phone β Reset settings.
- Select Network Settings Reset (saves data but resets communication settings).
- If the problem persists, reset all settings (without deleting files).
The MIUI update often fixes microphone bugs to check the firmware's relevance:
- π± Open the Settings. β The phone. β Updating the system.
- π Click Check Updates and install the latest version.
- π§ If the update is not available, check the firmware region: Settings β Additionally. β The region should be the same as yours. SIM-card.
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Before resetting, back up your data via Settings β Additional β Backup. This will save contacts, messages, and application settings.
If the microphone still doesnβt work after the upgrade, try to retrace the previous version of MIUI via Fastboot. Instructions for this are available on the XDA Developers or 4PDA forums.
6. Advanced Methods: Engineering Menu and ADB
For power users, there are ways to fine-tune the microphone through the engineering menu and ADB:
Method 1. Engineering Menu (MTK)
- Enter the phone code in the app: ##36446337###.
- Go to the Hardware Testing β Audio section.
- Select the Mic Test and check the signal levels for each microphone.
- If the values are below 30 dB, the microphone is defective or disabled.
Method 2. ADB-commands to include debugging logs
adb shell
setprop persist.audio.fluence.speaker true
setprop persist.audio.fluence.voicecall true
setprop persist.audio.fluence.voicerec falseThese commands activate the system-level voice-enhancing algorithms, and then reboot the phone after you type in.
How to turn on the developer mode?
β οΈ Attention: Misuse of the right ADB Or an engineering menu can cause a system failure, don't change the settings unless you're sure they're there.
7. When to contact the service center
If none of the methods worked, the problem may be a hardware malfunction.
- π Microphone does not show signs of life (signal level 0 dB in the engineering menu).
- π§ The phone fell into the water or was subjected to a strong vibration.
- π§ After disassembling the phone (for example, to replace the battery), the microphone stopped working.
- π± On the screen appears notification Microphone disabled due to damage.
In the service center Xiaomi microphone diagnostics costs from 500 to 1500 rubles, and replacement β from 1000 to 3000 rubles depending on the model of the microphone.
Before the service visit:
- Make a backup copy of the data.
- Record the phone's IMEI (*#06#).
- Check if you have an authorized Xiaomi service center in your city (list on mi.com).