The problem when the interlocutor cannot hear you during a call or the voice recorder refuses to record your voice is one of the most common on smartphones running Android. Often this is not a physical failure, but a software glitch or simply a security permission being accidentally disabled. In modern versions of the operating system, such as Android 12, Android 13 and newer, access controls for audio devices have become more restrictive to protect user privacy.
To get the recording function working again, you need to check several levels of settings: from global toggles in the notification shade to individual permissions for specific applications. Sometimes deeper intervention is required, such as resetting application settings or checking the physical condition of the device. In this article, we will analyze in detail all the possible reasons for blocking the microphone and provide comprehensive instructions on how to activate it.
You should not ignore the privacy indicators that appeared in the latest updates. If you see a green icon in the corner of the screen, it means the microphone is currently active. If it is not where it should be (for example, when talking in messenger), then access is really blocked by the system or third-party software.
Quick activation through the control panel
The easiest way to check and enable the microphone is to use the quick settings panel. On many modern smartphones from manufacturers Xiaomi, Samsung i OnePlus there is a special switch that can globally disable the audio input. Swipe down from the top edge of the screen twice to expand the full list of icons.
Look for a switch with the text Access to the microphone or an icon in the form of a crossed out microphone. If such an element is present and in an inactive state, the system blocks audio recording for all applications without exception. Activate it with one click.
However, on stock versions Android (for example, on Google Pixel) there may not be such a global toggle switch. In this case, control is exercised exclusively through the privacy settings. Don't panic if you don't find a button in the curtain - this is a normal situation for a clean interface.
If the switch in the notification panel is inactive (gray), try restarting the device. Sometimes the system process responsible for audio freezes after updating the firmware.
After enabling global access, check the operation of the voice recorder. If the sound appeared, the problem was solved in a few seconds. If the microphone is still silent, proceed to a more detailed diagnosis of application settings.
Setting permissions for individual applications
Most often, the microphone is not disabled for the entire system, but only for a specific app. This may happen after updating an app or resetting your phone. You need to manually grant permission to use the audio input.
Go to the main settings of your smartphone and find the section Applications or Manage applications. In the list of installed apps, select the one with which you are having problems: Telegram, WhatsApp, Voice recorder or browser. Inside the application menu, find the item Permissions.
In the list that opens, find the line Microphone. The status can be set to Prohibited or Ask. Change it to Allowed or Allowed only during use. The last option is the most secure in terms of data protection.
- 🎤 Allowed: The application has constant access to the microphone, even if it is running in the background (not recommended for suspicious apps).
- ⏱️ Only during use: Access is opened only when the application screen is active and visible on the display.
- 🚫 Prohibited: full block access, the application will not be able to record a single second of sound.
Please note that in some shells, for example MIUI or ColorOS, there is an additional level of protection - “Permission Manager”. There you can see a summary table of all applications that have access to the microphone and revoke it en masse for suspicious software.
☑️ Checking access rights
After changing the settings, be sure to completely close the application (unload from RAM) and run it again. Often, changes only take effect after restarting the process.
Using Do Not Disturb and Focus Modes
Sometimes the microphone is technically on, but the sound is blocked by system operation profiles. Mode Do not disturb or activated Digital well-being profiles can limit the audio input at certain times of the day.
Check whether you have activated sleep or work mode, which automatically jams notifications and can limit the functionality of communication applications. Go to settings Sound and vibration and make sure that the mode Do not disturb is turned off.
It is also worth checking the settings Google Assistant. If your voice assistant takes control of your microphone, other apps may not be able to access it. Try temporarily disabling the function Hey Google in the assistant settings and check the microphone in other apps.
⚠️ Attention: In new versions of Android there is a “Microphone access indicator” function. If you see a green dot in the corner of the screen, but there is no sound, the application may have intercepted the audio stream but is not passing it on due to a driver conflict.
If you use third-party launchers or call recording apps, they may conflict with system restrictions. Try uninstalling recently installed utilities that work with sound.
Diagnostics through the engineering menu and tests
You can use the built-in diagnostic codes to deeply check the functionality of the microphone. This will help you understand whether the problem is software or hardware. Open the “Phone” application (dialer) and enter a special code.
#0#This code works on many devices Samsung and opens the testing menu. Select item Microphone or Recorder. You will be prompted to speak into the microphone and the system will show the incoming signal strength in real time. If the graph responds to your voice, then the hardware is working properly.
On devices Xiaomi and Redmi a code is used ##6484##that opens the menu CIT. There's also a section for checking audio input. If the microphone works in the engineering menu, but not in the applications, the problem is 100% in the permission settings or a software conflict.
What to do if the codes do not work?
Some telecom operators or custom firmware block the entry of service codes. In this case, download the Phone Info SAM or Test MTK application from Google Play to access hardware tests.
If the sound level indicator in the diagnostic menu does not move at all, even during a loud conversation, there is a high probability of physical damage to the microphone or its cable. In this case, software settings will not help.
Specific settings for calls and recording
We should separately consider the situation when the microphone does not work during phone calls. In call settings there is often an option Noise reduction or Noise reduction. Sometimes the aggressive operation of this algorithm is perceived by the user as completely turning off the microphone.
Go to the application Phone, click on the three dots in the corner and select Settings. Find a section related to audio or accessibility. Try disabling the noise reduction function and check the connection with the subscriber.
Also check if a Bluetooth device is connected to the phone. Your smartphone can automatically switch audio input to your headset, watch, or car system, even if they are in another room. Disable Bluetooth completely for the test.
| Symptom | Possible cause | Solution |
|---|---|---|
| Only hissing is heard | Clogged microphone grid | Clean the hole with a soft brush |
| The interlocutor cannot hear at all | Blocking permissions in the application | Grant access in the settings |
| Sound is available only on speakerphone | Faulty main microphone | Use a headset or repair |
| The microphone turns off by itself | Conflict with energy saving | Disable battery optimization |
If you have a dual-SIM phone, try making a call from another SIM card. In rare cases, problems with the network of a particular operator may affect the transmission of the audio stream.
Physical reasons and cleaning the device
Do not forget about banal physical obstacles. The microphone holes on smartphones are very small and easily become clogged with dust, pocket lint, or dirt. The main microphone is usually located at the bottom of the case, next to the charging connector, and the additional one (for noise reduction) is at the top end.
Carefully inspect the holes under good lighting. If you see a dense lump of dust, carefully remove it. It is strictly forbidden to use sharp metal objects (needles, pins) for cleaning, as you can damage the microphone membrane.
Use a soft toothbrush or a special brush to clean the equipment. You can also carefully blow out the holes, but not with your mouth (to prevent moisture from getting in), but with compressed air from a can. The phone case may also block access to the microphone if it is not fitted correctly.
⚠️ Attention: If the phone has recently been dropped in water or exposed to high humidity, the microphone may have oxidized. In this case, self-cleaning may not help; the module will need to be replaced at a service center.
Remove the protective cover and check the operation of the microphone without it. Some dense silicone pads move over time and block the technical hole.
Resetting settings and extreme measures
If none of the above methods helped, the system may have accumulated critical configuration errors. Try resetting all applications. This will not delete your personal data (photos, contacts), but will return all apps to the factory permission settings.
Go to Settings → System → Reset settings (the path may vary depending on the model). Select item Reset application settings or Reset Wi-Fi, mobile data and Bluetooth settings. Sometimes resetting the network settings solves the problem with audio stream routing.
In the most extreme case, when the problem appeared after unsuccessful firmware update, a full reset to factory settings may be required (Hard Reset). Do not forget to back up your important data before this procedure.
If the microphone does not work even after a full reset to factory settings and in the engineering menu, this is a guaranteed hardware failure that requires replacement of the part.
Remember that after the reset you will have to re-issue permissions to all applications. This is a small price to pay to restore the functionality of an important communication component.
Frequently asked questions (FAQ)
Why does the microphone work in the voice recorder, but not in WhatsApp?
This is a classic permissions problem. The Voice Recorder application has access by default, since it is a system app, while Messenger may have been accidentally denied access by the user or by a security update. Go to the application settings and check the permissions specifically for WhatsApp.
Can a virus disable the microphone on Android?
Yes, malware can block access to the equipment or intercept it. If you notice strange behavior, check your phone with an antivirus (for example Dr.Web or Kaspersky) and remove recently installed applications from untrusted sources.
How to enable the microphone to record calls on Android 13-14?
In new versions of Android, Google limits call recording to system level. Third-party apps often cannot access the microphone during a call. The only legal way is to use the built-in recording feature (if available in your region) or turn on speakerphone and record the conversation on a second device.
Why did the sound disappear after a firmware update?
The update could reset permission settings or change audio drivers. Check to see if microphone access has been disabled for key apps in the privacy menu. Also try clearing the cache of the Phone application and Google Play Services.
Does the power saving mode affect the operation of the microphone?
In extreme power saving mode, the system can limit the operation of background processes and sensors, which sometimes leads to incorrect operation of the microphone in instant messengers. Disable battery saving mode to check.