Samsung Galaxy S21

Samsung S21 Keeps Making Notification Sound – How to Fix

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Receiving a sound alert when you get a notification is a good way to keep up with the messages, emails, and other alerts without looking at your Galaxy S21. 

But what if your Galaxy S21 keeps making random notification sounds? And when you open up the notification panel, there aren’t any actual notifications? Sounds confusing, right?

But in this guide, we will show you what could possibly cause your Samsung S21 to keep making notification sounds and more importantly, how you can fix your device and get rid of those random notification noises.

Note: Solutions in this guide will work on any Samsung Galaxy S21 model (S21, S21 Plus, S21 Fe, and S21 Ultra models.)

Editor’s note: We created these instructions using a Samsung Galaxy S21 running Android 13. Depending on your device’s software version, some steps and menu positions may look slightly different.

Why Does Your Samsung Galaxy S21 Make Random Notification Sounds?

These are the most common reasons why your Samsung Galaxy S21 makes random notification alerts

Reason 01 – Having debit/credit cards (that have a chip inside) near the device

We don’t want to go into much detail here. As you know, the Galaxy S21 supports the NFC feature. So if the NFC feature is turned on and there is a card near your device that has a chip in it (like a debit/credit card), this is why your device makes random notification sounds. 

Reason 02 – Enabling notification reminders

On your Samsung S21, you can enable notification reminders, which will keep making notification sounds periodically after receiving a notification, until you open the notification. So if this is enabled, your phone will keep making notification sounds even if there are no new notifications.

Reason 03 – Bugs within the Android system (system settings and accessibility)

Notifications are controlled under the settings of your Galaxy S21, if there is a bug or a temporary glitch, that could lead to random notifications appearing on your smartphone.

Reason 04 – Third-party apps

Some third-party apps can bloat your notification panel with lots of notifications. The worst part is, that there can be poorly coded apps that make random notification sounds without any reason.

Please note that there can be one or even a couple of causes for your case. Even if there are, you shouldn’t be worried about it. By following the solutions we are about to show you, you should be able to resolve this issue successfully. So let’s get into it.

Fix 01: Restart the Device

If the sudden notification sound came because of a temporary glitch within the Android system, restarting your Galaxy S21 should fix the problem. 

Restart your device as you normally do. And see if your device makes any random notification sounds after that.

Fix 02: Check Notification Settings

Here, you should look for notification reminders, or repeating notifications that have been enabled on your Galaxy S21. If so, you can then turn it off if there are any unwanted notifications.

To check notification settings, follow these steps;

  1. Open Settings.
  2. Tap on Notifications.
  3. Scroll down and under “Looking for something else?” section, tap on “Notification reminder”.

Note: If you didn’t find notification reminders under that section, it should be located in Advanced settings under the Notification settings.

  1. Make sure the “Notification reminder” is turned off. If you want to keep it turned on for like calls and messages, then tap on Select Apps and remove any unwanted apps from the list.
Notification reminders

Once you set everything, restart your Galaxy S21 and see if the problem is solved.

Fix 03: Reset Accessibility Settings

Accessibility can control notifications to an extent (under hearing and interaction settings). If those settings have malfunctioned or glitched, you have to reset the settings to fix random notification sounds on your smartphone.

To reset accessibility settings, do this;

  1. Go to Settings.
  2. Tap on General management.
  3. Under General management, tap on Reset.
  4. Then, tap on Reset accessibility settings.
Reset accessibility settings

Once the reset is done, restart your device.

Fix 04: Reset All Settings

If resetting accessibility settings didn’t work, you can reset all settings on your Galaxy S21, after you reset the settings, you will have to re-configure settings if you have made any changes to the settings before.

Here is how to reset all settings;

  1. Go to Settings > General management.
  2. Tap on Reset.
  3. Tap on “Reset all settings”.
Reset all settings

Fix 05: Remove Unwanted Notifications from Third-Party Apps

You can check the notification history on your Galaxy S21 to see which app causing the random notification sounds (if there is no other cause for this issue). Then, you can turn off notification access or completely remove the app from your smartphone.

First, you have to enable notification history (if you haven’t enabled it before). follow these steps;

  1. Open Settings.
  2. Tap on Notifications.
  3. Tap on Advanced settings.
  4. Then, tap on “Notification history”.
  5. Tap on the toggle button.
Notification history

After you enable the notification history, wait until your phone produces a random notification sound. Then, go back to the notification history, and see what app causing the issue.

If there is a third-party app on top of the history, then tap on that app and disable the notification access to it, or uninstall it from your smartphone.

Fix 06: Do a Factory Data Reset

If none of the above solutions worked for you, then you can do a factory data reset. 

Here is what you need to do;

  1. Go to Settings > General management.
  2. Tap on Reset.
  3. Tap on Factory data reset.
Factory data reset
  1. Enter the screen lock password (if you have set up a screen lock before).
  2. Confirm the reset.

It will take a while to reset your device completely. Once it is completed, set up your device and restore the backup you have taken.


If you have followed this guide correctly, you should have now fixed the notification sound issue on your Galaxy S21. 

So which solution worked for you, don’t forget to leave a comment below.

Have a nice day!

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The founder of and the tech nerd of the team. He is specialized in Android/iOS development and web development.

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