How to disable Xiaomi MIUI 12 security notifications: The complete guide

Owners of Xiaomi smartphones with the shell MIUI 12 often face an aggressive alert system that periodically blocks the screen with pop-ups. These messages can report “found viruses”, the need to clear memory or just advertise applications from the GetApps store. This intrusiveness irritates users and reduces the comfort of the device, turning daily use of the gadget into a fight against the system.

Fortunately, the developers have left the ability to deactivate most of these features, although they have hidden the corresponding switches quite deeply. In this article, we will discuss in detail how to get rid of advertising in system applications, disable scanning when installing programs and remove pop-up banners. Completely disabling all notifications requires several steps in successive settings sections.

It’s worth noting that ignoring system protection completely can lead to real risks if you often install software from unknown sources. However, for experienced users who know which apps are safe, constant reminders become unnecessary noise. Below are proven methods to make the interface clean and minimal.

Disabling Scanning When Installing Applications

One of the most annoying features is the automatic scanning of each installable. APK-Every time you manually install a program, the system runs a check, which often lasts longer than the installation itself. To remove this delay, you need to change the settings of the built-in scanner.

Go to Settings → Applications → All apps. Search the Security app and open it. In the upper right corner, click the gear icon to open the settings menu. Here you are interested in Scanner.

  • 📱 Find the Scan Before Install switch and put it in an inactive position.
  • 📱 Turn off the “Recommend Reliable Apps” option if it’s active.
  • 📱 Make sure that the virus database update is also stopped so that the system does not ask for permission to connect to the network.

After this, the system will stop interrupting the installation process, especially for those who often test new software or use alternative app stores.

☑️ Security setting MIUI 12

Done: 0 / 1

Elimination of pop-up ads in the Security app

The Security app itself is the primary source of banner ads and push notifications on the lock screen. Even if you don't install new programs, it can periodically send messages about "junk files" or offer to speed up the processor.

Open the Security app again and go to settings through the gear in the corner. You'll need to find the General Settings section. This is where the switches that display advertising content and recommendations are hidden.

⚠️ Warning: Disabling recommendations may cause you to stop receiving information about new shell features MIUI, But it also removes intrusive advertising.

In the general settings section, find Get recommendations and turn it off. Also, deaktivirovat's Add a shortcut to your desktop if you don't need one. These actions will significantly clean up the interface.

Additionally, check the Cleanup section inside the security app settings, and there may be a separate switch called Show Ads or Cleanup Recommendations, and you need to switch it to Off.

Set up notifications about viruses and threats

The antivirus protection system in MIUI 12 is based on either the Avast or Tencent engine (depending on the firmware region), which can periodically issue alerts that the phone is under threat, even if there is no real danger, often just a way to draw attention to paid features or advertising.

To fine-tune it, go to the Security app and select the Antivirus section. Click on the settings gear in the upper right corner. Here you will see the option to Update Virus Databases. If you don't want your phone to try to download new signatures and remind you of it, turn it off.

ParameterRecommended valueImpact on the system
Updating the basesOffSaving traffic, no reminders
Auto scanningOffSpeeding up the interface
Threat notificationsOffA clean status line
Real-time monitoringAs you wish.Basic protection when installing APK

It can also have a Hazard Notification menu, which will prevent red plaques from appearing on the screen to warn you of potential risks, which is useful if you are confident in the sources of your files.

Why does the antivirus find threats where there are none?
Often, the built-in scanner tags as mod application viruses, game patches or programs that have been modified by enthusiasts. For a system, any APK without the official developer's digital signature may look suspicious. If you downloaded a file from a trusted source (such as 4PDA or GitHub), such warnings can be ignored.

Disabling system notifications and MSA services

Some of the ad notifications that appear in the notification curtain are managed by the MSA (MIUI System Ads), a service that collects usage data and broadcasts ads to system interfaces, and disabling them is a key step towards a clean system.

Go to Settings → Passwords and Security → Data Access. In the list, find the msa app and turn off Wi-Fi and mobile network access. After that, the system will ask for confirmation – wait 10 seconds and click “Cancel” (or “Stop”), and then repeat the action until access is permanently blocked.

  • 🔍 Search for “Advertising Services” settings (or Advertising Identifiers).
  • 🔍 Turn off the item "Personalized Advertising».
  • 🔍 Click “Reset Advertising Identifier” to clean up your accumulated profile.

Also, check the Get Content app under All Apps, go to its settings and turn off notifications and network access if you are not using the store.

📊 What annoys you the most in MIUI?
Intrusive advertising:Frequent security notifications:Settings complexity:Slow interface operation:Other

Managing Notifications through Application Manager

MIUI 12 has a powerful notification management tool that allows you to point-disable messages from specific system components, which allows you to leave important alerts (for example, about low battery power) and remove information noise.

Open Settings → Notifications and Status bar → Notification Center. You can choose a style (Classic or New), but we are interested in managing specific applications.

Inside the Security app notification menu, you'll see many categories, disable all but critical ones, such as Call Block (if you use) or Traffic Monitor. All items related to Cleanup, Viruses and Recommendations should be switched off.

⚠️ Warning: Do not turn off critical system error notifications unless you are sure of their origin.

It is also useful to go to the Services and Reviews (or Mi Credit) settings and completely disallow it from sending notifications, a component often used for (push) news advertising.

Using Developer Mode for Advanced Customization

For users who want to gain maximum control, there is a possibility of using developer mode. Although there is no direct "remove all ads" switch, you can limit the background activity of some processes.

Activate Developer Mode by tapping 7 times on the MIUI version in About Phone. Then go to Advanced Settings → For Developers. Find the section related to background processes and limit the number of processes if the device is slow.

adb shell pm disable-user --user 0 com.miui.misys

This ADB command (requires PC connection) allows you to completely disable the misys system service, which is often responsible for authorization and some of the advertising mechanics. Use it with caution.

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Before executing ADB commands, make sure to make a full backup of the data. Disabling system services can lead to unstable operation of the Mi Account.

Remember that interfering with system processes through ADB requires accuracy. A mistake in the name of the package can cause the phone to stop loading or lose the ability to make calls.

Frequently Asked Questions (FAQ)

Is it safe to completely disable the Security app?
Completely removing or disabling the system application "Security" without root rights is impossible by standard methods, since it is part of the MIUI kernel. Disabling its functions (scanning, notifications) is safe if you monitor the installed applications yourself. However, real-time antivirus protection will not be active.
Why did the MIUI update turn on the ad settings again?
When updating firmware, Xiaomi often resets user privacy and advertising settings to factory values, a standard procedure for implementing new company policies, and after each major update, it is recommended to recheck the Advertising Services sections and the Security app settings.
Can I remove the MSA service without root rights?
You can't remove the MSA service completely without root rights, but you can block it from accessing the Internet through your data settings, effectively stopping banner ads from loading, even though the process will remain in the system's memory.
Does disabling security notifications affect the operation of banking applications?
No, disabling visual notifications and recommendations does not affect the operation of banking software. However, if you turn off the antivirus engine itself or ban the operation of system security libraries, some banks may refuse to start, considering the environment to be unsafe.

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Competent setting of notifications allows you to save the performance of the smartphone and eliminates visual noise, making the use of MIUI 12 comfortable.