You take out a Xiaomi smartphone, unlock the screen, and suddenly you realize you missed an important message or a missed call. The reason is simple: notifications don't show up on the lock screen. This problem is found on devices with MIUI of any version, from the budget Redmi Note to the flagship Xiaomi 14. Most of the time, the fault is in the system settings, but sometimes the root of the evil lies deeper, in firmware errors or application conflicts.
In this article, weβll look at all the possible reasons why notifications may disappear from the lock screen, from basic privacy settings to hidden MIUI features that arenβt even mentioned in the official documentation. Youβll learn how to return notifications in 2 minutes (if the settings are problematic) or what to do if a malfunction requires deeper intervention. And why on some Xiaomi models notifications disappear after upgrading to MIUI 14/15, and how to fix it without resetting.
1. Check the basic notification settings on the lock screen
The first thing to do is to make sure that the notifications display function on the lock is not manually disabled, and in MIUI, a separate switch is responsible for this, which can get lost after updating or resetting the settings.
Go to: Settings β Notifications and Status bar β Notifications on the Lock screen
Here you will see three options:
- π± Show all text β full notifications with text of messages are displayed (recommended for personal use).
- π Hide confidential content β only app icons without text are shown.
- β Do not show notifications β complete shutdown (frequent cause of problem!).
If this is OK, but notifications are not shown anyway, check the individual settings for each application, for example, WhatsApp or Telegram may have their own restrictions on how content is displayed on the block.
- Open Settings β Applications β Application Management.
- Select the application you want (for example, Viber).
- Go to the Notifications section.
- Make sure the Show on the lock screen switch is active.
2. Conflict with the Do Not Disturb regime and the schedule
One of the most insidious reasons is Do Not Disturb (DND) mode, which can run in the background even if you haven't manually turned it on, and in MIUI, it has flexible settings, including automatically turning on on a schedule or when you connect to a specific Wi-Fi network.
To check: Settings β Sound and vibration β Do not disturb
Pay attention to:
- β° Schedule β it is possible that the mode is activated at certain hours (for example, at night).
- π‘ Rules β check if automatic notifications are turned off when connecting to a home Wi-Fi or Bluetooth device (such as a smartwatch).
- π Exceptions - even if DND On, some apps (calls, alarms) can be deleted. Make sure the messengers are on the list.
β οΈ Attention: B MIUI 14+ Do Not Disturb mode can be activated automatically when the battery is low (below 15%), which is designed to save energy, but often causes missed notifications.
π‘
If you miss important calls often, add contacts to Exceptions β Calls from and select Favorite Contacts or All Contacts.
3. Cache and system data errors
If the settings are fine but the notifications are still not shown, the problem may be in the corrupted cache of the system applications responsible for displaying notifications, with two key services in MIUI: com.android.systemui and com.miui.securitycenter.
To reset their cache without losing data:
- Go to Settings β Applications β Application Management.
- Click on the three dots in the upper right corner and select Show all processes.
- Find the System Interface (com.android.systemui) and click Clear Cache.
- Repeat the same for the Security Center (com.miui.securitycenter).
If this didnβt help, try resetting notification settings for all apps: Settings β Apps β Notifications β Reset notification settings
β οΈ Note: On some Xiaomi models (such as the Redmi Note 10 Pro), resetting notification settings can cause vibration to turn off for all applications.
What to do if the cache reset does not help?
4. Conflicts with the MIUI shell and updates
Many users face a problem after updating MIUI β especially when switching to a new version (for example, from MIUI 13 to MIUI 14).The fact is that in fresh firmware Xiaomi is actively implementing new privacy features that can block notifications on the lock screen by default.
Hereβs what to check after the update:
- π‘οΈ New permissions: Go to Settings β Confidentiality β Special permits β Notifications on the lock screen and make sure the right apps have access.
- π Resetting settings after update: B MIUI 14+ After major updates, the system suggests resetting some settings to standard. If you missed this window, do it manually in Settings. β The phone. β Reset settings (select Reset network settings and notifications).
- π¦ Update rollback: If the problem appears immediately after the update, try rolling back to the previous version MIUI through settings β The phone. β Updating the system β Three points. β Select the update package (you need a firmware file of the old version).
| MIUI version | Typical problem | Decision |
|---|---|---|
| MIUI 12β13 | Notifications disappear after reboot | Disable battery optimization for system applications |
| MIUI 14 | Notices from messengers are not shown | Add Apps to Special Permits β AutoRun |
| MIUI 15 (Beta) | Notifications are displayed with a delay | Enable Accelerated Notification Display in Developer Settings |
Check the version. MIUI In Settings β The phone.|Open Special Notification Permits|Reset the System Interface Cache|Reboot your phone after the changes-->
5. Problems with battery optimization and background work
Xiaomi aggressively optimizes background processes to extend battery life, sometimes resulting in apps (especially instant messengers) not being able to update notifications on the lock screen in a timely manner.
To fix this:
- Go to Settings β Battery and Performance β Battery Consumption Management.
- Select the App Selection and find the problem messenger (such as Telegram or VK).
- Set a regime for him without restrictions.
- Go back and open the settings. β Annexes β Application management β [Select the application] β Battery.
- Activate Auto Start and Background Activity options.
For MIUI 14+, it is also recommended to disable βAdaptive Battery Optimizationβ: Settings β Battery and Performance β Battery Settings β Adaptive Battery Optimization
β οΈ Attention: On models POCO Redmi with Snapdragon processors 4xx/6xx Disabling battery optimization can reduce the time of operation 10β15%. Weigh Which Is More Important: Notifications or Autonomy.
6 Hidden MIUI features you didn't know about
There are a few hidden options in MIUI that can affect how notifications are displayed, and you can't find them in standard settings, you need to activate Developer Mode.
How to turn on Developer Mode: Settings β About Phone β MIUI version (click 7 times in a row).
After that, a new Settings section β Additional β For developers. Check here:
- π§ Limit background processes β there must be a Standard Limit or No Limitations.
- π΅ Do not turn off notifications when blocking β turn on this switch.
- β‘ Accelerated notification display (available in the MIUI 15 Beta β speeds up notification processing by 30-40%.
Another little-known trick is resetting security settings, which helps if notifications are lost due to conflict with antivirus or MIUI protection: Settings β Passwords and security β Reset security settings
π‘
If you have MIUI 14/15, be sure to check the Adaptive Optimization and Background Process settings β these are most often to blame for notification issues.
Hardware problems and rare cases
If neither of these methods worked, the problem could be hardware malfunctions or serious firmware errors, and consider rare but possible causes:
- π Battery wear: On phones older than 2-3 years, a worn-out battery can cause sudden system reboots, causing notifications to "reset." Check battery status in Settings β Battery β Battery status (if there is such a item) or through the AccuBattery app.
- π οΈ Display connector damage: If notifications only disappear at a certain screen angle, the problem may be in the display plume (relevant to Xiaomi with the X-ray screen). AMOLED-screen).
- π₯οΈ Conflict with custom recaveri or root rights: If you have installed TWRP or received root, check if the system files responsible for notifications (for example, have been deleted, /system/priv-app/MiuiSystemUI/).
In such cases, it will help:
- π Reset to factory settings (pre-reverse!).
- π§ Fastboot flashing (if the problem is a damaged firmware).
- π Contact the service center (if iron is to blame).
β οΈ Note: On Xiaomi models with MediaTek processors (e.g. Redmi Note 12) 4G) Fastboot flashing can block the bootloader. Use only official firmware from Xiaomi site!