How to disable the security app on Xiaomi Redmi 9

Users of Xiaomi Redmi 9 smartphones often face intrusive system utilities that, designed to protect the device, sometimes begin to interfere with its normal functioning. The built-in Security app is an integral part of the MIUI shell and is responsible for scanning viruses, monitoring traffic and cleaning memory. However, its aggressive algorithms can block the installation of applications you need from unknown sources or constantly display banner ads.

Disabling or properly configuring this component requires an understanding of the system architecture, because simply removing it in a standard way will not work without superuser rights. It is important for owners of Redmi 9 to know which modules within the application are responsible for locking them, so that they can be pinpointed deactivated without disrupting the main interface. We will look at safe methods of deactivating the security mechanisms that will allow you to gain full control over your gadget.

It should be noted that the complete removal of the system application can lead to unstable operation of the Android operating system. Therefore, the most rational approach is not to "cut" the code, but to competently restrict rights and disable notifications. This will preserve the integrity of the firmware, but remove irritating factors such as sudden checks or blocking the launch of games.

Why do users want to disable system protection?

The main reason Xiaomi Redmi 9 owners are looking for ways to disable the Security app is because of the excessive intrusiveness of advertising.Msa system advertising service is often integrated into cleaning utilities, which leads to pop-ups even on the desktop.This not only annoys, but also consumes the CPU resources, reducing the overall performance of the device.

The second important reason is to block the installation of applications from APK-When you download a program from a non-official Google Play store, a built-in virus scanner may mistakenly classify the file as dangerous and prevent it from running. For experienced users installing modified versions of software or specific utilities, this becomes a serious obstacle.

⚠️ Note: By disabling system protection, you take responsibility for the device's digital hygiene.Do not download files from unverified sources, as the built-in scanner will no longer alert you to potential threats.

Many users also complain of false positives when running games or heavy apps. Antivirus module can consider active resource use suspicious activity and force to close background processes. This is especially true for Redmi 9, where memory optimization plays a key role in performance.

Preparation of the device before making changes

Before you start disabling system components on Xiaomi Redmi 9, you need to perform a number of preparatory steps to avoid accidental loss of data or blocking important functions of the phone, first of all, it is recommended to create a full backup of contacts and photos in the cloud storage Mi Cloud or Google Drive.

Then check the operating system version. The security application algorithms may vary depending on the version of MIUI. Go to Settings → About the phone and write down the firmware version number. This knowledge can come in handy if standard disabling methods don't work and you have to look for specific solutions.

• 📱 Make sure that the battery is at least 50% so that the device does not turn off during the system settings settings.
• 🔐 Unlock the screen and remove all temporary locks if they interfere with access to the settings menu.
• 📶 Turn off the Internet while you manipulate system rights so that background services don’t automatically update your security settings.

It is important to understand that some features may be hidden depending on the region chosen when you first run. If the security menu seems limited, try changing the region in the settings to India or Singapore, where functionality is often expanded, and then return it back.

Disabling the antivirus and virus scanner

The most common task is to disable the constant file verification. In the Security app, the Antivirus module is responsible for this. To stop automatic verification when installing applications, open the utility and go to the Antivirus section. Click on the settings icon (cogs) in the upper right corner of the screen.

In the menu that opens, look for Installation Monitor (or "Check When Install"), and put the switch in the inactive position, which will prevent the system from scanning every new one. APK-The file is up before it's run, but the antivirus engine itself will stay in the system and can be manually run.

To get a deeper setup, you can turn off automatic virus database updates. In the same settings menu, find Auto Update and select Never. This will prevent background data loading and save traffic, but require you to manually update the databases once a month.

If you want to ignore the scanner's warnings completely, you can add folders or files to exceptions. To do this, select Exceptions from the antivirus menu and specify paths to the directories where your work files are stored, which is especially useful for developers or users testing software.

Blocking Advertising and MSA Services

The msa (MIUI System Ads) service is the main source of advertising in the Xiaomi Redmi 9 interface. It is closely related to the Security app, as it often uses its notifications to show promotional materials. To turn off ads, go to Settings → Passwords and Security → Access to data.

Find the msa app on the list and turn off Wi-Fi and mobile data, and then the system will stop receiving commands to display banner ads, but this step alone is not enough, as the service may try to restart itself.

⚠️ Note: When system services are disabled, some features, such as personalized design recommendations, may stop working properly.

You also need to turn off the recommendation in the Security app itself. Open it, click on the settings gear, and find Receive recommendations. Uncheck the box. It's also worth doing this operation in the Explorer and Downloads settings, because they're part of the MIUI ecosystem.

Setup of notifications and application permissions

Even after the basic features are disabled, the app can continue to bother you with notifications. To (fully) remove them, go to Settings → Apps → All Apps. Find Security (or Security) in the list and click on it.

Select Notifications. Here you will see a list of all alert categories. Turn off all switches, especially those related to Memory Cleanup, Viruses and Recommendations. This will make the application dumb, and it will stop popping on top of other windows.

• 🔕 Disable the category Important notifications to disable display in the curtain.
• 🚫 Uncheck the Sound and Vibration box for complete silence.
• 👁️ Disable display over other apps if this option is available in advanced settings.

Also worth checking permissions. Search the Permissions section of the app menu, revoke the permissions to access the call list, SMS and location if they are not used by you for the Antispam or Find Device functions, which will increase your privacy.

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Tip: If after disabling notifications, the app icon still appears in the curtain, try clearing the application data through the Memory menu. This will reset the accumulated notification cache.

Using ADB to Advance Disconnect

For users who don't have the standard methods, there is a way to disable the component through a computer using the Android Debug Bridge (ADB) toolkit, which allows you to freeze the system application, making it invisible to the system, without deleting the firmware files, the most effective method for Redmi 9.

To start, you need to activate the developer mode. Go to Settings → About Phone and quickly click on the MIUI version number 7 times. You will see a message "You became a developer." Then turn on Debugging on USB in the Additional → For Developers menu.

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

The command you put in will shut down the security center completely, but be careful, it could lead to the loss of Task Manager and permission management. If you decide to return it to the way it was, use the command:

adb shell pm enable com.miui.securitycenter

⚠️ Attention: Use ADB Disabling critical system packages other than securitycenter can cause a device to bootloop.

This is considered a "soft removal" method. The application stays in the phone's memory, but it doesn't start or consume resources. It's the perfect balance between performance and the ability to quickly restore functionality if necessary.

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The most radical but effective way to use ADB is that it doesn't require root rights, but it requires a computer and a USB cable.

Possible problems and solutions

After disabling the Security app, Xiaomi Redmi 9 users may encounter a number of unusual situations, such as the memory cleanup via the standard multitasking menu, which is normal, since this feature was responsible for the disabled module.

Sometimes the system can reactivate the service itself after a major firmware update or reset, in which case the shutdown procedure will have to be repeated, and there may be errors when trying to run some banking applications that require active antivirus.

If the phone starts to behave unstable, warms up or discharges quickly, it is recommended to return the security settings to their original state. ADB packet-activating.