The most common reason: notifications are turned off in your phone's settings

Your phone receives the text message, but it does not alert you because notification settings — the rules that tell your phone when to buzz, chime, or light up — are switched off for your messaging app. This is the single most common cause, and it is fixable in under a minute.

On an iPhone, go to Settings, then Notifications, scroll down to find your messaging app (Messages, WhatsApp, or whatever you use), tap it, and check that "Allow Notifications" is toggled on. The toggle should be green. On an Android phone, go to Settings, Apps, find your messaging app, tap Notifications, and make sure notifications are enabled there.

If notifications are already on, the next step is to check whether your phone is in Do Not Disturb or Silent mode. On iPhone, swipe down from the top right corner and look for a moon icon — if it is highlighted, tap it to turn Do Not Disturb off. On Android, swipe down twice from the top to open the full quick settings panel and look for Do Not Disturb or Silent mode, then turn it off.

Key Takeaways

  • Check your messaging app's notification settings first — most phones have notifications turned off by default for some apps.
  • Do Not Disturb and Silent mode will block all alerts even if notifications are enabled, so verify your phone is not in either mode.
  • Some phones let you silence notifications from specific contacts while allowing others through, which can make it seem like you are missing texts from one person.
  • Restarting your phone fixes notification problems about half the time because it resets the connection between your messaging app and your phone's alert system.
  • If texts arrive but you never see them, your phone may be set to hide message previews on the lock screen for privacy reasons.

Do Not Disturb is on and blocking everything

Do Not Disturb is a mode that silences all sounds, vibrations, and alerts except from people you have marked as favorites. Many people turn it on at night and forget to turn it off. On iPhone, you can see if it is active by looking at the top of your screen — a moon icon means Do Not Disturb is running. On Android, the icon is usually a circle with a line through it.

To turn it off on iPhone, open Settings, go to Focus (or Do Not Disturb on older versions), and tap the mode that is currently on, then tap "Turn Off". On Android, swipe down twice from the top and tap the Do Not Disturb icon to toggle it off. After you turn it off, test by having someone send you a text — you should hear or feel an alert within seconds.

Your phone is set to hide message previews on the lock screen

Some phones are configured to show only that you received a text, not what it says, as a privacy feature. This means the text arrives and your phone alerts you, but when you look at your lock screen, you see "1 New Message" instead of the actual words. You are not missing the notification — you are just not seeing the content until you unlock your phone.

On iPhone, go to Settings, Notifications, Messages, and look for "Show Previews". Make sure it is set to "Always" rather than "When Unlocked" or "Never". On Android, open Settings, Apps, your messaging app, Notifications, and look for an option like "Show Notification Content" or "Hide Sensitive Content" — turn off the hiding option if it is on.

The messaging app itself has notifications disabled

Even if your phone's general notification settings are on, individual apps can have their own notification controls that override the phone-wide settings. This is especially common with WhatsApp, Telegram, and other third-party messaging apps.

Open your messaging app and look for Settings or Preferences (usually a gear icon or three dots in the corner). Find the Notifications section within that app and make sure notifications are turned on there as well. Some apps let you control notifications separately for different types of messages — for example, you might have alerts on for direct messages but off for group chats. Check all the toggles in that section.

Your contact is muted or has notifications silenced

Many phones let you mute notifications from specific people while still receiving their texts. If you are getting texts from most people but not from one person in particular, that contact may be muted. On iPhone, open Messages, swipe left on that person's conversation, tap the bell icon with a line through it (if you see it), and tap "Unmute". On Android, open your messaging app, long-press the conversation, tap the bell icon, and select "Show notifications".

You can also check whether that person is in your Do Not Disturb exceptions list. On iPhone, go to Settings, Focus, Do Not Disturb, and look at "Allowed Notifications" — if the person is listed there, they are being treated differently from everyone else. Remove them from that list if you want them to behave like your other contacts.

Restart your phone to reset the notification system

Notification problems often fix themselves after a restart because the connection between your messaging app and your phone's alert system can get stuck. Power off your phone completely, wait 10 seconds, and power it back on. This is not a permanent fix for underlying problems, but it resolves about half of notification issues that are not caused by settings.

After the restart, test by having someone send you a text. If you still do not see an alert, go back through the settings checks above — at least one of them will be the culprit.

Your phone's storage is full or the app needs an update

If your phone's storage is nearly full, some apps stop working correctly, including the ability to send alerts. Go to Settings, Storage (or About Phone on Android), and check how much space is left. If you have less than 1 gigabyte free, delete photos, videos, or apps you do not use regularly.

Also check whether your messaging app has a pending update. On iPhone, open the App Store, tap your profile icon, scroll down, and look for your messaging app in the list of apps with updates available. On Android, open the Play Store, tap your profile icon, tap "Manage apps and device", go to the Updates tab, and look for your messaging app. Install any available updates and restart your phone afterward.

Frequently Asked Questions

Why do I get texts from some people but not others?

That person is likely muted in your messaging app, or they are in your Do Not Disturb exceptions list. Check your app's settings for that specific contact and look at your Do Not Disturb allowed list. You are receiving the texts — your phone just is not alerting you.

I see the text on my lock screen but never hear a sound. What is wrong?

Your phone is probably in Silent mode or has notification sounds turned off for that app. On iPhone, check the physical mute switch on the side of the phone — if it is in the down position, Silent mode is on. On Android, go to Settings, Sound, and make sure notification volume is not set to zero.

My texts come through hours later. Is that a notification problem?

That is usually a network or carrier issue, not a notification problem. Your phone is not alerting you because the message has not arrived yet. Contact your carrier to check whether there are network problems in your area, or try switching between WiFi and cellular data to see if one works better.

Do Not Disturb is off but I still am not getting alerts. What else could it be?

Check whether your messaging app has notifications disabled in its own settings, whether your phone storage is full, and whether the app needs an update. If all of those are fine, restart your phone. If alerts still do not appear after a restart, uninstall and reinstall the messaging app.

Can I get notifications from one person even though Do Not Disturb is on?

Yes. On iPhone, go to Settings, Focus, Do Not Disturb, tap "Allowed Notifications", and add that person as an exception. On Android, the process varies by phone, but usually you can long-press a conversation and select "Priority" or "Important" to let that person through.