MSA app on Xiaomi: what is it and how to disable it

Owners of Xiaomi and Redmi smartphones, when studying the list of running processes in detail, often notice activity that does not have an obvious icon on the desktop. In the task manager or the Security application, you can see a process called msa, which periodically consumes the CPU resources and activates the network connection. For the average user, the appearance of an unfamiliar system name is often a cause for concern, especially if the device begins to run slower or discharge faster.

In fact, MSA is an acronym for MIUI System Ads, which directly indicates the functional purpose of this component. It is not a virus or malware in the classical sense, but an integrated system service responsible for displaying banner ads in standard applications of the MIUI shell. It analyzes your actions, collects data about the programs used, and based on this information forms personalized advertising results in places such as application folders, a lock theme or an integrated file manager.

While advertising is part of the company’s business model of selling powerful hardware at an affordable price, many users prefer to have full control of their device, and understanding how it works gives you the ability to either accept its existence for the sake of smartphone value or competently deactivate intrusive notifications without compromising the stability of the operating system.

Technical purpose and operating principle of MSA

The msa process is deeply integrated into Android’s MIUI-installed operating system, and its primary purpose is not just to “show pictures,” but to use a sophisticated telemetry collection and analysis algorithm to track which apps you open most often, how much time you spend in your browser, and even analyze geolocation to offer relevant services nearby.

It's important to understand that MSA is not the only component responsible for marketing. It works closely with other system services like Analytics and Daemon. If you just try to delete one file, the system can restore it the next update or reboot, because the integrity of the MIUI shell will be compromised, which is why complete deletion requires obtaining superuser rights (Root), which is not recommended for ordinary users for security reasons.

⚠️ Warning: Attempting to force the removal of system files through third-party file managers without root rights can lead to a cyclic smartphone restart (bootloop.

Technically, the process runs in the background and is activated on schedule or when certain system components are running. It uses minimal RAM at rest, but can briefly load the processor when advertising content is loaded. On modern models with a large amount of RAM, this effect is almost imperceptible, but on budget devices with 2-3 GB of memory, this can cause micro-interface delays.

Impact on the performance and autonomy of the device

The question of how much MSA affects battery life remains debatable: on the one hand, the code is optimized to work on weak processors, and in ideal conditions, the power consumption is minimal. On the other hand, constant survey of servers and analysis of user actions create background load that adds up with other processes. If you notice that the phone is warming in standby mode, perhaps the reason lies in the “blown” cache of the advertising service.

The service has an indirect effect on interface performance. The main resource consumption occurs when MIUI decides to show you a proposal. There may be a short-term jump in CPU usage. For owners of Xiaomi's flagship models with top-end chipsets, it doesn't matter, but for users of the budget line of Redmi, turning off advertising can be a way to refresh the work of an old smartphone a little.

The impact on traffic is also worth noting: While banner ads themselves weigh a bit, constant data sharing for targeting can be wasting mobile internet if you’re not connected to Wi-Fi. In roaming or limited-rate environments, msa background activity can come as a nasty surprise at the end of the month.

How to disable advertising in system applications

The safest and most effective way to combat intrusive service is not to delete it, but to deactivate it through the standard settings. Xiaomi has provided the ability to disable personalization, which effectively “de-enables” the msa process, depriving it of the right to collect data and display targeted ads, this method does not require root rights and is safe to guarantee the device.

To do this, go to the Settings menu, then select Password and Security (or Advanced Settings in older versions). Find the Access to Personal Data or Special Features. In the list of system services, find msa and turn the switch to the Off position. The system will alert you that some features may stop working and start a countdown of 10 seconds.

After disabling the main process, it is also recommended to remove the personalization of ads in specific applications, this will prevent banners from appearing in folders and on the lock screen.

• 📱 Security: Open the app, click on three dots in the corner, select Settings and turn off Get Recommendations».
• 📂 Explorer: Go to the Explorer settings, find the “About Service” or “Recommendations” item and deactivate them.
• 🎵 Music and Video: Standard players also have a Settings section where you need to uncheck the box from the "Show Advertising" item».

After all these steps are done, msa will stop receiving your location and application list. The banner ads should disappear and the load on the system decreases. If after a while you notice that the switch has been activated again, repeat the procedure - sometimes after major MIUI updates, the settings are reset.

⚠️ Attention: After disconnection MSA in some regions, the "Hot Apps" widgets or recommendations in the Mi browser may stop working. This is the standard behavior of the system when restricting the advertising module.

Comparison of MIUI versions: Global, Chinese and EU

The behavior of the msa process and the amount of advertising directly depends on which version of the firmware is installed on your device. Xiaomi uses different monetization strategies for different markets, which is reflected in the system settings.

The Chinese version of the firmware (China ROM) is the most aggressive, where msa is integrated as deeply as possible, and completely remove it without flashing on the global version or installing third-party launchers is almost impossible. The Chinese version of MIUI is sharpened for local services and has the highest level of telemetry collection.

Global ROMs are more user-friendly, with GDPRs (in Europe) and other data protection regulations in place to make permissions easier to manage, but even here, advertising is present, especially in standard apps like Music or Themes.

Xiaomi.eu is a modified version of Chinese firmware created by enthusiasts, which has msa cut at the system level, removed Chinese applications and added features for an international user, installing such firmware is a radical but most effective way to forget about advertising forever.

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Xiaomi.eu firmware is the best choice for advanced users who want to get the most performance without advertising, but requires unlocking the bootloader.

Can I remove the MSA completely through ADB?

For users who don’t want to reflash the phone but want to uninstall the msa process with a guaranteed USB debugging (ADB) method, this allows you to delete system applications for the current user without disrupting the integrity of the system partition, which means that when reset to factory settings, the application will return, but it will not work normally.

To implement this method, you will need a computer, USB-cable and debugging mode enabled on your smartphone. Go to About Phone in the Settings menu and click on the build number 7 times to activate the developer menu. Then, in Additional or Advanced Settings, turn on Debugging on USB.

After connecting the phone to the PC and installing the drivers, you need to enter a command in the computer's command line to delete the packet.The packet name usually looks like com.miui.msa.global or simply com.android.msa. The command to delete is as follows:

adb shell pm uninstall -k --user 0 com.miui.msa.global

This command hides the application from the system. The process will stop starting, disappear from the list of working services and will not consume resources. It is important not to confuse the name of the package, since removing critical system components can lead to unstable MIUI. If you are not sure of your actions, it is better to limit yourself to software shutdown through settings.

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Use the Xiaomi ADB/Fastboot Tools for Windows – it has a graphical interface and allows you to safely remove MSA with one button without manually entering commands.

Security and myths about the MSA virus

There are many claims online that msa is a virus, a miner, or a spyware, all of which stem from a lack of understanding of the Android operating system. MSA is a legitimate component signed with Xiaomi digital keys. The antiviruses installed on the phone do not find threats precisely because it is not technically malicious code.

But in terms of privacy, it does collect a lot of data, it knows what apps you use, how often you unlock your phone, and where you are. For users who care about their privacy, it can be a bigger problem than losing a couple percent of their battery life, and in that context, turning off MSA is a matter of digital hygiene, not just saving resources.

If you see a process with a similar name, but it consumes 30-40% of CPU time all the time, or if the name is written with errors (for example, msaa or mis), you should do a full antivirus check of the device, for example, Dr.Web or Kaspersky. But the standard system process MIUI System Ads is safe for data integrity.