How to Fix No Notification Sound Issue on iPhone 4 or iPhone 4s

No Notification Sound Issue has been encountered by many users after updating their devices to the latest iOS. Many users are not able to hear the notifications for incoming calls, text messages, FaceTime, e-mails, games and other applications as well. Most of the devices that have experienced notification sound issue are iPhone 4s, iPhone 5, iPhone 6.

Not hearing your notifications is really maddening. You probably missed a lot of important calls and unable to answer to many messages. If this happened to you, below are some solutions that can fix notification sound issue.

Fix No Notification Sound Issue

Follow the instructions for each solution. You may need to try most of them in order to solve the problem.

Solution 1: Check Do Not Disturb feature

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Have you checked your Do Not Disturb feature? You might have forgotten to turn it off or you accidentally turn it on. From home screen, go to Settings app. Tap Do Not Disturb and make sure that it is off. If you want to use this feature, you can set specific schedules when you want it to be activated.

Solution 2: Check Do Not Disturb setting

There are times that you really cannot miss an important phone call – like a call from your wife or a babysitter, or even from a certain business contact that you are anxious to hear from. In this case, you need to customize some exceptions in your Do Not Disturb setting by following these easy steps: 

  1. From your iPhone’s home screen, open your Settings app. 
  2. On your Settings screen, tap the option Do Not Disturb
  3. On your Do Not Disturb screen, tap the option Allow Calls From. New: How to Fix No Notification Sound Issue on iPhone
  4. You will now have a screen with the following options that you can choose from:
    • Everyone: Allows everyone on your Contacts list to call you. 
    • No One: Allows no one on your Contacts list to call you. 
    • Favorites: Allows contacts included in your Favorites list to call  you. 
    • Specific group: Allows only a specific group on your Contacts list to call you. 
  5. Go back to the previous screen (Do Not Disturb) and then switch on the Repeated Calls option. This will allow a phone call from the same number to go through if received within three minutes. 
  6. Under the Repeated Calls section, you can tap the Silence option that you prefer: 
    • Always:  Keeps your calls and notifications silent all the time.
    • Only while iPhone is locked: Keeps your calls and notifications silent only when your iPhone is locked.

For more details, read the article on How to use Do not disturb mode.

Solution 3: Check Mute Button

Your iPhone comes with a hardware mute button or switch, which allows you to turn the ringer off easily and places your phone into its vibrate-only mode. This physical switch is located on the left side of your phone (when you are facing the device) and directly above the volume button or rocker. When this switch is in-line with the volume rocker then the ringer is on. Also, you will notice that a bell image will flash briefly on your phone screen after turning the said ringer on. When the switch is offset from the volume rocker then the ringer is set to mute and your phone’s vibrate-only mode is turned on. This time you will notice that the bell image will have a line struck through it, which will flash briefly on your phone screen.

Solution 4: Restart Your iPhone

Follow these simple steps in restarting your iPhone:

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  1. Press and hold your phone’s Sleep/Wake button and wait for the red slider to appear.
  2. Once you see the slider, drag it towards the right to power off your phone.  
  3. Wait for about 5 seconds after your phone has turned off. To turn on your device, press and hold the Sleep/Wake button again  until you see the Apple logo on your screen.

There is also another way for you to restart your phone, which is known as a force restart. However, this is your last resort when your device is not responding.  To force restart your iPhone, follow these steps:

New: How to Fix No Notification Sound Issue on iPhone

  1. Press and hold both your phone’s Home and Sleep/Wake buttons for at least ten seconds.
  2. Keep on pressing the buttons until you see the Apple logo on your screen.

Solution 5: Reset Your iPhone’s Network Settings

You will definitely connect to a bunch of different Wi-Fi networks over time. Each time you get connected, your iPhone’s iOS will take note of that particular configuration under the hood, saving you time and effort from connecting manually to the network again. With all the different settings saved, there will come a time that your device will fail to connect to any of the networks due to various reasons. This is where resetting your phone’s network settings will come in handy – where all the wireless credentials accumulated by the device over time will be removed or cleared. 

When do you really decide to use the reset network settings feature? It is highly recommended to reset your iPhone’s network settings when you start observing that the device constantly fails to connect to any of the available Wi-Fi networks. Using this feature helps you to delete all network settings in one shot, without you going through the trouble of forgetting each and every Wi-Fi connection on your own. 

New: How to Fix No Notification Sound Issue on iPhone

Do take note that resetting network settings will also reset your APN and MMS settings, especially if you have entered them manually.  Therefore, if you only want to remove your phone’s carrier -based settings without deleting the stored Wi-Fi network credentials, then follow these instructions instead: 

  1. Open your iPhone’s Settings app.
  2. On your Settings screen, tap on the Cellular option. 
  3. Choose Cellular Data Network  then tap on Reset Settings.   

Solution 6: Reset All Settings

If the two solutions above did not work, you can try resetting all your settings. From home screen, go to Settings app. Tap General and scroll to Reset. Select Reset All Settings.

How to Fix No Notification Sound Issue on iPhone 4 or iPhone 4s

After resetting, restart iPhone by holding and pressing both the lock and home button for few seconds. Wait for your device to restart.

Solution 7: Customize Your Contact Notification Alerts

Assigning a particular notification alert for your contacts is one way to identify who is calling you or sending you a text message even without physically checking your iPhone. Usually your contact’s text message alert is set to default, though you can change it to a specific sound or vibration pattern of your choice. Customizing your alert notifications is as easy as 1-2-3 by following these steps:

  1. From your iPhone’s home screen, tap on the Contacts icon. 
  2. On the Contacts screen, select the contact you wish to set a customized sound or vibration alert.  
  3. At the top-right corner, tap on the Edit option. 
  4. Scroll down and tap on the Ringtone option to change the sound alert you will hear when this particular contact calls.
  5. Choose from the list of various ringtones by tapping on the option of your choice. 
  6. Once you have selected the notification sound, tap on the Done option at the top-right corner of the screen to save all changes made.

These will be the same basic steps you can follow in customizing vibration patterns for phone calls, as well as audio and vibration notifications for text messages. In addition sound and vibration alerts, you can also personalize your contact’s profile by assigning images.  All these customization techniques will make it easier for you to recognize your contacts on your phone whom you interact with most of the time (especially when your contacts list gets bigger in the long run).

Other solutions:

  • Try to plug and unplug your headphones into the port.
  • Turn Bluetooth.
  • Go to YouTube and play videos. Increase the volume to maximum.
  • From Settings, go to Notifications. Tap Messages then Alert Style when locked. Change from banner to alerts.
  • Go to Settings, tap Privacy, tap Microphone and toggle it off.

See more on how to customize notification sound here.