Have you noticed that WhatsApp has stopped sending notifications to your Xiaomi smartphone, even though messages are coming?This problem is familiar to many owners of devices on MIUI - from the budget Redmi Note to the flagship Xiaomi 13/14. Most often, it is not the messengers themselves that are to blame, but aggressive optimization of the system, which blocks the background activity of applications "to save battery."
In this article, we'll look at all the possible causes, from basic notification settings to hidden MIUI options that the manufacturer doesn't advertise, how to check WhatsApp permissions, disable RAM auto-cleaning, and even what to do if the problem occurs after a firmware update, and at the end, you'll find an FAQ with answers to frequent questions and a checklist for quick diagnosis.
1. Check the basic WhatsApp notification settings
Start with the obvious: perhaps notifications are simply disabled in the app itself or in the system settings. On Xiaomi, this is done in two places: inside WhatsApp and in the Settings โ Notifications menu.
Open WhatsApp, click on it. โฎ โ Settings โ Notifications, make sure that:
- ๐ Pop-up notifications are enabled (section "Tones and vibrations").
- ๐ฑ Notifications are allowed on the lock screen (privacy settings).
- ๐ต Selected beep (not "Without sound").
- ๐ฅ Notifications for specific chats are enabled (check conversations with "switched off sound").
Then go to Phone Settings โ Notifications โ WhatsApp. Here you should activate:
- ๐ Display notifications (master switch).
- ๐ Priority of notifications (high or medium).
- ๐ Sound and vibration.
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If notifications are working but not displayed on the lock screen, check the lock and protection settings โ lock screen โ lock screen notifications on the lock screen.
2. Battery optimization and background activity
MIUI is known for its aggressive battery optimization, which often blocks the background of apps. WhatsApp may not receive notifications because the system freezes its processes.
- Go to Settings โ Applications โ Application Management โ WhatsApp.
- Select Battery Limitation โ No restrictions.
- Activate Auto Start and Background Activity.
For models with MIUI 12/13/14, check out:
- ๐ Settings โ Battery and productivity โ Select Battery Mode โ Set โPerformanceโ instead of โPurpose Savings".
- ๐ซ Settings โ Annexes โ Special permits โ Battery Optimization โ Find WhatsApp and Turn Off Optimization.
Important: On some firmware (e.g. Xiaomi.eu), the path to battery settings may be different. If you don't find Battery Limitation, try Settings โ Apps โ WhatsApp โ Additional โ Battery.
3. Auto-cleaning RAM and Cleaner
The MIUI autoclean RAM feature often kills WhatsApp processes, causing notifications to arrive late or not at all.
- Go to Settings โ About phone and click on the MIUI version several times to activate the developer mode.
- Back to Settings โ Additionally. โ For developers.
- Find Do Not Stay Activity and Limit Processes in the Background โ Disable Both Parameters.
- Turn off RAM Cleanup when you lock the screen (if any).
Check out the Security App as well:
- ๐งน Open the Security app (shield icon).
- ๐ Move to Acceleration. โ Autoclean and add WhatsApp to exceptions.
- ๐ซ Turn off Deep Cleaning in the Cleaner Settings.
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Autocleaning RAM is the main reason for delaying notifications on Xiaomi.Even if you don't see the cleanup process, the system can kill WhatsApp in the background.
4. Google Play Services and Syncing Issues
WhatsApp relies on Google Play Services and FCM (Firebase Cloud Messaging) to operate notifications, and if these services don't work properly, notifications may not arrive.
- Update Google Play Services and WhatsApp to the Play Market.
- Go to Settings โ Accounts and Sync โ Google and make sure that Contacts and Gmail sync is enabled.
- Clear the cache of Google Play Services: Settings โ Apps โ App Management โ Google Play Services โ Storage โ Clear the cache
If the problem persists, try re-registering the device to FCM:
- ๐ฑ Delete your Google account and add it again.
- ๐ Reinstall WhatsApp (pre-restore chats).
- ๐ง Turn on the settings. โ Google โ Advertising โ Reset the advertising ID.
How to check the work of FCM?
5. Conflicts with other applications
Some apps can block notifications or interfere with WhatsApp.Frequent culprits:
- ๐ก๏ธ Antiviruses (Avast, Kaspersky, 360 Security).
- ๐ VPN-Customers (especially those with the "Block Tracker" function").
- ๐ด Battery saving applications (Greenify, AccuBattery).
- ๐ฎ Gaming accelerators (Game Turbo) MIUI).
To identify the conflict:
- Launch your phone in Safe Mode (press the power button โ โSafe Modeโ).
- Check if notifications are coming. If so, it's the third-party app's fault.
- Remove or disable suspicious programs by testing WhatsApp after each step.
Pay special attention to Game Turbo: this app can block notifications even outside of game mode. Turn it off in Settings โ Special features โ Game Turbo.
6.Firmware problems and resetting settings
If none of these things worked, the problem could be the firmware itself.
- ๐ฑ Devices with custom firmware (Xiaomi.eu, LineageOS).
- ๐ Phones after a failed update (especially over the air").
- ๐ ๏ธ Rooted Access Devices (Magisk, SuperSU).
What to do:
- Check out the MIUI version in Settings โ About Phone. If this is a beta version, roll back to stable.
- Reset network settings: Settings โ SIM-maps and mobile networks โ Resetting network settings
- Perform a soft reset (without data loss): Settings โ About Phone โ Resetting โ Resetting all settings
For advanced users:
| Problem. | Decision | Risks. |
|---|---|---|
| Unstable custom firmware | Reflash to official MIUI via Fastboot | Data loss, bootloader lockdown |
| Damaged system files | Recovery with the Mi Flash Tool with the Clean All option | Full reset to factory settings |
| Conflict with Magisk | Remove modules related to battery optimization | Loss of root rights in incorrect removal |
Backup WhatsApp chats in Google Drive| Download official firmware from Xiaomi| Check battery power (minimum 60%)| Prepare USB and PC cable with Mi Flash Tool| Disable antivirus on your computer-->
Hardware problems and SIM-map
It is rare, but sometimes it is the fault of the "iron" or SIM-Check the map:
- ๐ถ Mobile network quality: If the signal is weak, WhatsApp may not sync. 4G instead 3G.
- ๐ The second slot's work SIM: On some Xiaomi (e.g. Redmi Note 10 Pro) notifications only come to the main ones. SIM.
- ๐ Battery condition: if it is bloated or worn out (>500 cycles, the phone can turn off background processes.
How to test:
- Put it in. SIM-Card to another phone and check WhatsApp.
- Turn off the second SIM (if any) and restart the device.
- Check the battery status via ##4636## (test menu) or the AccuBattery app.
โ ๏ธ Warning: If the battery is swelling, stop using the phone immediately! it is dangerous to health.
8. Alternative solutions and workarounds
If the standard methods donโt work, try the workarounds:
- ๐ Notifications through SMS: WhatsApp has a function to send notifications as SMS (set up in Settings โ Notifications โ Notifications of missed calls).
- ๐ค Tasker Automation: Create a Task That Will Force WhatsApp to Run Every 15 Minutes.
- ๐ง Email: Set up WhatsApp notifications forwarding to email via IFTTT Zapier.
For MIUI 14/HyperOS users, there is a hidden setting that can help:
- Activate the Developer Mode (as in Section 3).
- Go to Settings โ Additional โ For developers โ Background processes.
- Set a standard process limit instead of a โlimit.โ
โ ๏ธ Warning: Changing the limit of background processes can increase battery consumption.watch out for phone heating.
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If nothing helps, try using WhatsApp Web on your computer โ notifications are more stable than on mobile devices with MIUI.