Owners of Xiaomi, Redmi and POCO smartphones often notice a strange system component called MSA in the lists of running processes or when checking installed applications in detail. The acronym raises many questions, especially for those who monitor the performance of the device and worry about the confidentiality of their data. This process is not a virus, but its activity and hidden nature of work force users to look for information about its real purpose.
In fact, MSA is MIUI System Ads, the built-in mechanism of the MIUI operating system (and HyperOS) that displays advertising content across different smartphone interfaces. Xiaomi is known for selling its devices at a minimal margin, offsetting this with revenue from software services and advertising, which is why it is deeply integrated into the shell and is activated by default immediately after the device is first turned on.
Understanding how this service works gives users complete control over their device, you can put up with periodic banner ads in folders and applications, or completely disable this module, making smartphone use more clean and enjoyable. In this article, we will discuss in detail the functionality of MSA, assess the risks of its operation and provide step-by-step instructions for deactivating it.
⚠️ Attention: MSA Attempting to remove it forcibly through third-party file managers without superuser (Root) rights is impossible and can lead to unstable system operation, so use only standard disabling methods.
What's Behind the MSA Acronym
The decoding of the component’s name directly indicates its functional purpose in the Xiaomi ecosystem. MSA stands for MIUI System Ads (previously also known as MIUI Service Ads). It is not a third-party software that you accidentally downloaded, but a part of the firmware responsible for collecting usage statistics and targeting ads.
The main purpose of this service is to analyze your actions in standard applications and show relevant advertising. Algorithms track which programs you use more often, which design themes you install and how you interact with the interface. Based on this data, system advertising appears in folders on the desktop, in the Security application, in Themes and even in a standard music player.
- 📢 Analytics collection: The service collects anonymized data about the frequency of use of applications and user preferences to customize advertising algorithms.
- 🖼️ Content Display: Responsible for rendering banner ads in system interfaces MIUI HyperOS without disrupting the basic functions of the phone.
- 🔄 Background Update: Contacts Xiaomi servers periodically to download new advertising campaigns and update lists of blocked domains (paradoxically, but a fact).
It should be noted that the presence of MSA is characteristic not only for Chinese firmware versions, but also for global (Global) installed on devices sold in Europe and the CIS. Although in global versions the aggressiveness of advertising is reduced compared to the Chinese market, the MIUI System Ads mechanism itself continues to work in the background, consuming resources and transmitting data.
Why is this process necessary and does it affect the battery?
Many users are asking, if I don't see explicit ads all the time, why do I need this process? "" The fact is that MSA is proactive, it sets the stage for an ad to be displayed the moment you open a game folder or start cleaning up memory, for example. Without an active MIUI System Ads process, the system simply won't be able to display the banner instantly.
The impact on device autonomy is one of the most talked-about aspects. MSA itself is not heavy-duty. It doesn't consume as much power as navigation or gaming. However, its constant background activity, periodic calls to the network to update advertising IDs, and telemetry collection put additional strain on the processor and communication module. On today's powerful smartphones, this effect may be invisible, but on budget models of Redmi or POCO with large batteries, every percentage of charge is on the account.
⚠️ Note: If you notice that MSA consume 5-7% battery charge per day, this may indicate a software failure or "sticking" process, requiring resetting settings or updating the firmware.
And traffic is also a big issue. Although banner ads weigh a little, their constant upload over a mobile network (3G/4G/5G) consumes your Internet package. For users with unlimited Wi-Fi, this is not critical, but in roaming or with a limited rate, the background activity of system services can be an unpleasant surprise.
Is it safe to disable MSA on Xiaomi?
The answer is clear: yes, disabling MSA is absolutely safe for the stability of a smartphone. It is not a critical system component like System UI or Phone Services, without which the phone will become a brick. Disabling MSA will only stop collecting advertising statistics and displaying banners, but will not affect the ability to make calls, use instant messengers or take photos.
However, there are nuances to be aware of before tampering with the system: Some users note that after disabling MSA in standard applications (for example, in Music or Themes), some content recommendations that are not formally advertising but use the same delivery mechanisms may disappear.
It is important to distinguish between disabling through settings and completely deleting. General disabling through a slider in settings just stops the service. It is a reversible action that does not violate the integrity of system files. Complete deletion (via ADB or Root) is a more radical step that is also safe, but requires more technical literacy.
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Before making any changes to system settings, it is recommended to back up important data to a cloud service or computer to eliminate the risk of information loss in any unforeseen circumstances.
Instructions: How to disable MSA through MIUI settings
The easiest and safest way to deactivate MIUI System Ads is to use the built-in shell settings, which do not require you to obtain Root rights, connect to a computer or install third-party software.
To start, you need to get into the hidden authorization menu of the ad service, which may vary slightly depending on the version of MIUI or HyperOS, but the logic remains the same. Open the standard Security app (green zipper icon), which is preinstalled on all devices of the brand.
☑️ Shutdown algorithm MSA
Then you have to be careful, because Xiaomi often changes the layout of items. In the settings menu that opens, find the section responsible for recommendations. It can be called "Receive recommendations", "Recommendations" or located inside the "Clean up" -> "Settings" subsection. You need to find a switch that allows the system to show promotional offers, and put it in an inactive state.
Once the main slide is turned off, the system can request confirmation of the action, and usually a window with a countdown timer (10 seconds) appears, during which the Stop or Disable button will be inactive, a psychological device to change the user's mind, wait for the timer to end and confirm the shutdown.
Path to the menu (example):
Security → (three points) → Settings → Get recommendations → Turn offIt is worth noting that disabling MSA in one place may not remove all advertising completely. The mechanism is spread across different services. Therefore, after completing the basic procedure, it is also recommended to go to the settings of each system application (Music, Video, Downloads, Explorer) and individually disable the options there "Receive recommendations" or "Show ads."
Additional Advertising Settings in the System
Even after the core MSA module is disabled, tails in the form of personalized advertising from Mi Ads may remain in the system. This is a separate but related service that uses your device’s advertising ID to match content. To maximally clear your smartphone of marketing noise, a number of other actions need to be performed.
Go to the general smartphone settings through the gear in the notification curtain or in the app menu. Find the Passwords and Security section (or Advanced Settings in older versions). Inside you are interested in the "Access to Personal Data" or "Advertising and Privacy" item.
| Setup parameter | Where to find out. | Recommended action |
|---|---|---|
| Personalization of advertising | Settings → Passwords and security → Access to personal data | Turn off (uncheck) |
| Advertising identifier | Settings → Passwords and security → Advertising | Reset and disable |
| Planner | The “Security” app → Cleanup → Settings | Deactivate “Recommendations” |
| Music/Video | Settings inside the Music and Video apps | Turn off "Receive recommendations" |
Pay special attention to the Downloads app. Often that's where the most visual debris accumulates. Open the app, click three dots in the corner, select Settings, and find "Show recommended content," and disabling this option will remove the news feed and ads from the download interface.
What to do if the slider turns on itself?
Removing MSA via ADB for Advanced Users
For those who want to get rid of MIUI System Ads and not trust software switches, there is a method of debugging via USB (ADB), which requires a computer and a cable, but allows you to completely cut the ad package from the system, even if it does not turn off in the settings.
Before you start, you need to activate the developer mode. To do this, quickly click on the build number seven times in the About Phone section. Then, in the Developer menu that appears, turn on USB Debugging. Connect your smartphone to your PC and install ADB drivers if they are not already installed.
Use the command to delete the packet. Be careful: enter the commands accurately, as removing critical system components can lead to a cyclic bootloop.
adb shell pm uninstall -k --user 0 com.miui.msa.globalIf the command is successful, the message “Success” will appear on the screen. The Msa application will disappear from the installed list, and the process will stop starting. To restore functionality (if something goes wrong), just reset the phone to the factory settings, which will return all system applications to their places.
⚠️ Attention: Use of teams ADB Removing system packages is done at your own risk.Incorrect removal of dependent libraries can disrupt standard Xiaomi applications.
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Complete removal via ADB is more effective than settings, but requires caution; for most users, a regular disabling of sliders in the security menu is enough.
Comparison: MSA on different versions of firmware
The behavior and obsession of MIUI System Ads is directly dependent on the firmware region installed on your device. Chinese versions (CN) historically contain the most ad integrations, as in the domestic market of China Google services are replaced by its own Xiaomi counterparts, and advertising is the main source of income.
Global versions (Global) for Europe and Russia have less aggressive policies, where MSA is more responsible for recommendations in folders and system utilities, less often intruding into user space. However, with the release of the HyperOS shell, the company has begun to unify approaches, and the number of ads in global firmware is gradually increasing, requiring manual configuration.
- 🇨🇳 Chinese firmware (CN): Maximum amount of advertising, Msa is aggressive, disabling may require additional manipulation.
- 🌍 Global firmware (Global): Moderate amount of advertising, basic disabling settings are available in the Security menu».
- 🇪🇺 European firmware (EEA): The most stringent restrictions on data collection due to GDPR, Msa is often limited or disabled by default in new models.
Users who have bought devices on aliexpress platforms with global firmware but Chinese hardware (called CN-based Global ROMs) should be prepared for the fact that MSA can behave like the Chinese version, in which case flashing to a pure Global or EEA ROM is the only radical solution.