5 Fixes When “Callers Can’t Hear Me” on Android Phone

• When a caller can’t hear you, it is usually a microphone issue.
• Often, the microphone pathway becomes blocked and can be cleaned out.
• Android 12 and newer have a Microphone access switch that mutes every app at once.
• If the issue started after loading an app, remove it and test the Smartphone.

If your Android smartphone is having problems with callers who can’t hear you, there are several fixes that can solve the issue.

This is a common complaint to smartphone repair and tech support is, “Incoming callers can’t hear me”.

If you have this problem, the first step is to find out if the microphone hardware is working or if something in the software is blocking it.

There are a few easy ways to test this, and which one you use depends on the phone you have.

Note: The dial pad code below is a Samsung feature. Skip to the fixes if your smartphone does not have the diagnostic menu.

How To Test an Android Smartphone Microphone

Option 1: The Samsung Diagnostic Menu

1. Open the Dial Pad and type in the code *#0*#



2. A Diagnostic Menu should Come Up, if not the phone does not have the option.



3. If the menu has a Mic test, use that first since it tests the microphone directly.
4. Press the Receiver option to test the earpiece. (Note: A tone will sound off when pressed)



5. If the Receiver tone is heard but callers still can’t hear you, the problem is usually the microphone.

If the code does nothing: Two things block it on newer Samsung phones. First, Auto Blocker will stop the code from opening. Go to Settings–> Security and privacy–> Auto Blocker and turn it off, dial the code again, then turn Auto Blocker back on when finished. Second, the code only works in the stock Samsung Phone app and will not work in the Google Phone dialer or other third-party dialers.

Option 2: Samsung Members Diagnostics

Newer Galaxy phones have a built-in microphone test that is easier to use than the dial pad code.

Open the Samsung Members app–> Support–> Phone Diagnostics–> Mic.

Record a short clip and play it back. The test will run through each microphone on the phone one at a time.

Option 3: The Voice Recorder Test (Any Android Phone)

If the phone has no diagnostic menu, open the built-in Voice Recorder app and record yourself talking at a normal volume.

Play it back and listen.

If the recording is clear, the microphone hardware is fine and the problem is a setting, a permission, or an app.

If the recording is silent or muffled, keep reading since the pathway is likely blocked.

The Speakerphone Test

Most Android phones have two or more microphones. The main one is on the bottom edge and a second one is at the top near the camera.

Make a call and ask the person if they can hear you, then switch to speakerphone and ask again.

If they can hear you on speakerphone but not normally, the bottom microphone is the problem.

If they can hear you normally but not on speakerphone, the top microphone is the problem.

This tells you exactly which microphone hole to clean.

5 Fixes When Callers Can’t Hear Me on Android Phone

1. Clean the Microphone Pathway Hole


The most common problem when a microphone is not working is the pathway is clogged with dirt, grime, lint, or other debris.

This is such a common problem that it will be the first thing a cellphone technician will do if you take it to be repaired.

It is very easy to clean the pathway but be sure not to press in too far or hard as to not damage the microphone.

The small SIM card pin that comes with the Android Phone is perfect for cleaning out the pathway but any small pin will work.

Use a small pin and slowly clean out the microphone pathway hole.

Do not push in too far or hard as you don’t want to damage the microphone; only clean out any blockage.

Also take the case off and check that it is not covering the hole. A thick case or a case that does not fit the phone properly will muffle the microphone.

The same goes for a screen protector that is not cut correctly, since the top microphone sits right next to the earpiece slot.

A video is at the bottom of the page of how it is done if a visual step-by-step is needed.

Once done, restart the phone and test it by making a call.

2. Restart the Phone and Disconnect Bluetooth


Restarting the phone will often clear out any bad data or errors.

While the error likely will come back it is usually best to first restart the smartphone.

Before testing again, also turn Bluetooth off.

Android will send call audio to a paired device without telling you, so if earbuds are in a pocket or a car kit is in range, the phone can be listening through that device instead of the handset.

You end up talking into the phone while the microphone that is actually live is sitting somewhere else.

This is a very common cause of “nobody can hear me” and it is fixed by simply turning Bluetooth off and calling again.

3. Turn On Microphone Access and Check App Permissions

Android 12 and newer added a system-wide Microphone access switch that turns off the microphone for every app on the phone at once.

When it is off, apps do not get an error, they just get silence, which is exactly what a caller hears.

It is easy to shut off by accident from the Quick Settings panel.

Swipe down twice to open the full Quick Settings panel and look for a Microphone access or Mic access tile. If it has a line through it, tap it to turn it back on.

It can also be found in Settings–> Privacy (or Settings–> Security and privacy–> Privacy on Samsung).

Next check the permission for the app itself.

Go to Settings–> Apps–> Phone–> Permissions–> Microphone and make sure it is set to Allow.

Do the same for WhatsApp, Messenger, Zoom, or whatever app the problem is happening in.

If it is set to “Ask every time” the prompt is easy to miss or dismiss without reading it.

App updates can also reset these permissions, so it is worth checking even if it worked fine last week.

4. Check for Firmware or Updates


Check for a software or firmware update since there may be a known bug that has a fix available.

On Samsung phones go to Settings–> Software update–> Download and install.

On Pixel and most other Android phones go to Settings–> System–> Software update.

Also update the Phone app itself from the Play Store, since call audio bugs are often fixed in the dialer app and not the system update.

Once updated, restart the phone.

5. Clear Cache and Disable Apps


A rogue app can cause problems with a smartphone. A badly coded or incompatible app can also sometimes cause issues.

Call recorders, voice changers, dialer replacements, and volume booster apps are the usual troublemakers since they take over the microphone during a call.

Clear the Cache

Clearing the cache on the Phone app can help in some cases.

Go to Settings–> Apps–> Phone–> Storage and then tap Clear cache.

Clearing the cache does not delete any call history or contacts.

Use Safe Mode to Find the Bad App

Instead of disabling apps one at a time, boot into Safe Mode which loads the phone without any downloaded apps running.

Press and hold the power button, then press and hold on the Power off icon until Safe mode appears, and tap it.

Make a call and see if the caller can hear you.

If it works in Safe Mode, a downloaded app is the cause. Restart normally and uninstall recently installed apps until the problem clears.

If it still does not work in Safe Mode, the problem is not an app and is likely hardware.

Disable Apps

To disable an App go to Settings–> Apps–> Select an App and then Disable.

Apps can also be disabled one-by-one to see if the problem clears.

Summary
If you are having issues with an Android smartphone and callers not hearing you the most common fixes are above.

It can no doubt be very frustrating when callers can not hear you when talking.

There are a few fixes an average owner can do before taking it to a repair person.

The most common issue is that the microphone pathway is clogged with debris muffling your voice and stopping you from being heard.

The pathway can be cleaned out, just be careful not to go too far in and damage the microphone.

The second most common issue these days is the Microphone access switch being turned off, which mutes the microphone for every app on the phone.

Other fixes include a restart, turning off Bluetooth, checking for updates, clearing the cache, and disabling apps.

Use the Voice Recorder test to narrow it down quickly. If a recording plays back clear, the hardware is fine and the problem is in the settings.

If the above options fail to fix the problem it may be time to return the phone or take it to a repair person.

Have you had issues with a caller unable to hear you? Let us know your thoughts below.