Have you noticed that WhatsApp stopped sending notifications about new messages, although the letters themselves arrive? Or don’t see notifications at all either in the status bar or on the lock screen? This problem occurs more often than it seems - from budget Android more often than it seems - from budget Xiaomi Redmi to flagship ones. The reasons may lie in the messenger settings, system energy saving restrictions, conflicts with other applications, or even server errors. WhatsApp stopped sending notifications. In this article we will look into it. You'll learn how to test each of the 12 reasons and receive step-by-step guide with pictures (for key steps). We will pay special attention to problems in Samsung Galaxy S23. The reasons may lie in the messenger settings, system energy saving restrictions, conflicts with other applications, or even server errors Meta.

In this article we will look at all possible scenarios - from the banal muting of sound in chat to the hidden performance limitations that Android imposes on background processes.. You'll learn how to test each of the 12 reasons and receive step-by-step guide with pictures (for key steps). We will pay special attention to problems in Android 12+where energy saving policies have become stricter, as well as the nuances of working with MIUI, One UI and ColorOS.

We warn you right away: some decisions will require manual settings in the developer or even resetting the cache. But don't worry—we'll explain every step in detail so you don't make things worse. Let's start with the simplest and gradually move on to complex technical manipulations.

📊 On which device did you lose WhatsApp notifications?
Samsung
Xiaomi/Redmi/Poco
Huawei/Honor
Realme/Oppo
Another brand
I don’t know

1. Checking basic notification settings in WhatsApp

The first thing you need to do is make sure that notifications are not disabled inside the messenger itself. Often, users accidentally click on "Mute Alerts" in a chat or mute the sound globally. Here's how to check:

  1. Open WhatsApp and tap on the three dots in the upper right corner → Settings.
  2. Go to Notifications → Message notifications.
  3. Make sure the slider Show notifications is turned on (should be green).
  4. Check the notification sound - tap on Notification tone and select any sound (for example, WhatsApp notification).

If everything is in order here, but there are no notifications, the problem lies deeper. Pay attention to individual chat settings: you may have turned off notifications for a specific contact or group. To check:

  • 📱 Open the desired chat → tap on the contact/group name at the top.
  • 🔔 Scroll down to the section Notifications and check if the box next to it is ticked Mute.
  • 🎵 If enabled Custom tone, try resetting it to standard.

Also worth a look at Settings → Notifications → Pop-up notifications. If it's Silent or Only when the screen is active, change to Always show pop-up.

💡

If you use WhatsApp Business, check the additional section Settings → Notifications → Business notifications —there may be individual restrictions.

2. Android system notification settings

Even if everything is configured correctly in WhatsApp, Android can block notifications at the system level. This is a common problem after OS updates or factory resets. Here's how to check:

  1. Open your phone → Settings phone → Applications (or Manage applications).
  2. Find WhatsApp in the list and tap on it.
  3. Go to Notifications (on some firmware - Alerts).
  4. Make sure the slider Allow notifications is active.

On Android 13+ the path may be different: Settings → Notifications → Notification history → find WhatsApp in the list and check the rights. If it is here Silent mode or Minimized, change to Default.

Pay special attention notification channels. WhatsApp creates several channels (for example, for messages, calls, groups). Check each one:

  • 📲 In the WhatsApp notification settings, tap on Notification channels (or Categories).
  • 🔔 For each channel (Messages, Groups, Calls), make sure that:
    • - Sound is on;
    • - Allowed display on the lock screen;
    • - No restrictions on importance (must be High or Medium).

On firmware MIUI (Xiaomi) and ColorOS (Oppo/Realme) there is an additional layer of settings. For example, in MIUI you need to go to Settings → Notifications → Advanced → Notifications on the lock screen and make sure that WhatsApp is not hidden.

Are notifications for WhatsApp enabled in Android settings?|Are all notification channels (messages, groups, calls) checked?|Is WhatsApp hidden on the lock screen?|Notification sounds are disabled globally in the system?-->

3. Battery optimization. and background activity

The most insidious reason is power saving limitationsthat Android imposes on applications. This is especially true for Xiaomi, Huawei and Samsungwhere aggressive battery optimization can “put to sleep” WhatsApp, preventing it from working in the background.

Here's how to fix it:

  1. Turn off battery optimization for WhatsApp:
    • 🔋 Go to Settings → Battery → Battery optimization (or Energy saving).
    • 🔍 Find WhatsApp in the list and select Do not optimize (or No restrictions).
  • Allow background activity:
    • 📱 In the WhatsApp application settings (Settings → Applications → WhatsApp) find:
    • 🔄 Background activity → enable;
    • 📶 Use data in background → enable;
    • 🔒 Autostart (on Xiaomi/Huawei) → turn on.

      • On Samsung s One UI other path:

      1. 🔋 Settings → Device maintenance → Battery;
      2. 🔍 Tap on three dots → Battery settings;
      3. 📴 Find WhatsApp and disable Battery optimization;
      4. 🔄 Enable Allow background activity.

    On Huawei/Honor Additionally check:

    • 🚫 Settings → Battery → Startup applications → for WhatsApp select Manually controlled;
    • 🔄 Settings → Applications → WhatsApp → Battery → disable Close after exit.
      • What to do if there is no item "Background activity"?

      On some firmware (for example, Flyme or Funtouch OS) this item may be called differently:

      - Allow autorun

      - Allow work in background

      - No restrictions

      If you don’t find it, try searching through the search bar in the settings for “background activity.”

      After changes reboot phone - this will help apply the settings correctly.

      4. Problems with cache and application data

      If notifications disappeared after updating WhatsApp or Android, damaged cachemay be to blame. Clearing the cache and data often solves the problem, but it is important to do it correctly so as not to lose chats.

      Instructions:

      1. 📱 Go to Settings → Applications → WhatsApp.
      2. 🧹 Tap on Memory (or Storage).
      3. 🗑️ Tap Clear cache (this safe - chats are not affected).
      4. 🔄 If that doesn’t help, try Clear data, but this will delete all chats and media! Make a backup copy first:
        • Open WhatsApp → Settings → Chat → Backup;
        • Create a copy in Google Drive or locally.

    After clearing the data, you will have to log in to your account again (enter the number and confirmation code). Notifications should work immediately after chats are restored.

    If you are afraid of losing data, try an alternative method:

    • 🔧 Delete WhatsApp;
    • 🔄 Reboot your phone;
    • 📥 Reinstall WhatsApp from Google Play;
    • 🔑 Log in to your account - chats will be restored from the backup automatically.
    💡

    Clearing the cache is a safe procedure, but clearing data deletes ALL chats. Always make a backup copy before doing this. step by step!

    5. Conflicts with other applications and "cleaners"

    Many users install memory optimizers (for example, Clean Master, CCleaner) or antiviruses (for example, Avast, Kaspersky), which aggressively close background processes. WhatsApp may be subject to distribution, which is why notifications do not arrive.

    What to do:

    • 🛡️ Temporarily disable the antivirus and check if notifications appear;
    • 🧹 Remove memory "cleaners" - they often break the background work of instant messengers;
    • 🔄 If you use Greenify or similar utilities for hibernating applications, exclude WhatsApp from their list.

    The problem may also be duplicate messengers. For example, if you have installed:

    • 🤖 WhatsApp Business and regular WhatsApp;
    • 📱 GBWhatsApp, YoWhatsApp or other modified versions;
    • 🔄 Cloned applications via Double applications (on Xiaomi) or Secure Folder (on Samsung).

    In this case:

    1. Leave only one official version WhatsApp;
    2. Delete everything modified versions (they may be blocked by WhatsApp servers);
    3. If you are using a cloned application, make sure that notifications are allowed for both instances.
    💡

    On some phones (for example, Samsung s Secure Folder) notifications for cloned applications are disabled by default. Go to settings Secure Folder and check your rights.

    6. Problems with network connection and WhatsApp servers

    If notifications do not arrive only on mobile data or only to Wi-Fi, the problem may be in the network. Here's what to check:

    • 📶 mobile data:
      • Make sure that you have enough traffic (WhatsApp consumes ~1 MB per day for notifications);
      • Check whether the operator blocks instant messengers (relevant for some regions);
      • Enable Roaming (sometimes helps with problems with LTE).
    • 📡 Wi-Fi:
      • Try connecting to another network;
      • Disable Saving traffic in the Wi-Fi settings;
      • Check if the router is blocking WhatsApp (go to the router admin panel at 192.168.1.1 or 192.168.0.1).

    Also, notifications may not arrive due to problems on WhatsApp servers. To check:

    1. Open the website Downdetector (or a similar service);
    2. See if there are spikes in complaints about notifications;
    3. Try sending a message to yourself from another device - if it doesn’t arrive, the problem is on the server side.

    If you suspect blocking on the part of the provider:

    • 🔄 Switch from 4G to 3G (or vice versa) in the mobile network settings;
    • 📡 Use a VPN (for example, ProtonVPN or Warp from Cloudflare) - if notifications are sent, the operator is to blame;
    • 📞 Call the operator's support and find out if instant messengers are blocked in your tariff.
    How to check if the router is blocking WhatsApp?

    1. Connect to this Wi-Fi from another device (for example, from an iPhone or iPhone). tablet).

    2. If notifications arrive on it, but not on your Android, the problem is in the phone settings.

    3. If they do not arrive on any device, go to its settings and check the section Parental Control or Firewall.

    7. measures

    If none of the above helped, it's time to move on to radical measures. Let's start with the safest thing - resetting notification settings.

    Instructions:

    1. 📱 Go to Settings → Applications → WhatsApp → Notifications;
    2. 🔄 Tap on the three dots in the upper right corner → Reset settings;
    3. 🔁 Reboot your phone.

    If that doesn't help, try reset all network settings (this will delete saved Wi-Fi and passwords, but will not affect personal data):

    1. 📶 Settings → System → Reset → Reset network settings;
    2. 🔄 Confirm the action and reboot the device.

    As a last resort will help factory reset, but it will delete all data from the phone. Before this:

    Back up your WhatsApp chats|Save photos and videos to Google Photos or your computer|Write down account passwords (they will be erased)|Check that you have a backup of your contacts-->

    After the reset:

    1. Restore data from a backup;
    2. Install WhatsApp again;
    3. Do not restore settings from an old backup (they may contain errors).
    💡

    Resetting to factory settings is the last chance. In 90% of cases, the problem is solved by the settings from the previous sections, don’t let it get to this point!

    Comparison of methods for solving the problem

    Method Difficulty Time Risk of loss data Efficiency
    Checking WhatsApp settings ⭐ 2-3 minutes No High (30% of cases)
    Settings Android notifications ⭐⭐ 5 minutes No High (40% of cases)
    Disable battery optimization ⭐⭐ 5 minutes No Medium (20% of cases)
    Clear cache ⭐ 3 minutes No Low (5% of cases)
    Reinstallation WhatsApp ⭐⭐⭐ 10 minutes Medium (if there is no backup) High (25% of cases)
    Reset network settings ⭐⭐ 5 minutes Low (only Wi-Fi will be erased) Low (3% of cases)

    As you can see, it’s worth starting with the simplest methods. Only if they do not help, move on to more complex ones.

    FAQ: Frequently asked questions about missing WhatsApp notifications

    ❓ Why do notifications arrive with a delay of several hours?

    This is a typical problem due to battery optimization or background activity restrictions. Android puts WhatsApp to sleep to save battery, and the app only wakes up when connected to Wi-Fi or charging. Solution:

    1. Disable battery optimization for WhatsApp (see section 3);
    2. Allow autostart and background activity;
    3. Add WhatsApp to the list Exceptions in the energy saving settings.
    ❓ There are notifications, but the phone does not vibrate. What should I do?

    Problem in the settings. vibration:

    1. In WhatsApp: Settings → Notifications → Vibration → select Short or Long;
    2. In Android: Settings → Sound and vibration → Vibration for notifications;
    3. Check whether Silent mode (bell icon with a strikethrough in the notification panel) is turned on.

    On some phones (for example, Xiaomi), vibration is turned off in Settings → Accessibility → Vibration.

    ❓ After updating Android, notifications disappeared. How to return?

    Updates often reset permissions for applications. Check: Notification permissions (see Section 2 data-i="385">) - disable for WhatsApp.

    • 🔄 Notification permissions (see. section 2);
    • 🔋 Battery optimization (in new versions of Android it becomes more aggressive);
    • 📱Settings Adaptive battery (Settings → Battery → Adaptive settings) - disable for WhatsApp.

    If that doesn’t help, try clear cache for Google Play Services:

    1. Settings → Applications → Google Play Services → Storage → Clear cache;
    2. Restart your phone.
    ❓ Notifications are not shown on the lock screen, but they are in the curtain. Why?

    This is a privacy setting. Fix:

    1. 📱 Settings → Lock screen → Notifications on the lock screen;
    2. 🔓 Select Show content (or Show all content notifications);
    3. 🔄 For WhatsApp separately: Settings → Applications → WhatsApp → Notifications → Lock screen → enable display.

    On Samsung different path: Settings → Lock screen → Widgets and notifications → Notifications → enable for WhatsApp.

    ❓ Notifications arrive, but without sound. How to enable?

    The problem may be in:

    • 🔔 Whatsapp settings: Settings → Notifications → Notification tone → select sound;
    • 📱 Global Android settings: Settings → Sound → Volume → check slider Notifications;
    • 🎵 Sound profile: if enabled Quiet or Vibration, switch to Sound;
    • 🔕 Speaker malfunctions: try turning on music - if there is no sound, the problem is in the hardware parts.