Owners of the Redmi 9C smartphone often face intrusive advertising notifications that appear in system applications and the browser. This is part of Xiaomi’s strategy to monetize budget devices, but for many users this approach becomes a serious irritant. Fortunately, the modern shell of MIUI provides enough tools to completely clean the interface of unnecessary visual noise without obtaining superuser rights.
The process of disabling ads does not require deep technical knowledge, but it is painstaking, since the settings are scattered across different menus. You will have to go through several points consistently to ensure that all sources of marketing content are blocked. Disabling the msa system service is the most important step without which other actions can be ineffective. Below we will look at each step in as much detail as possible so that you can customize your gadget once and for all.
It's worth noting that after all the manipulations, the interface will become significantly cleaner and battery consumption may decrease slightly due to the cessation of the background load of advertising modules. Some users fear that such actions may disrupt the system, but all the methods described below are standard shell functions. Let's start cleaning your Redmi 9C from intrusive marketing.
Disabling MSA Service is the Main Step
The first and most critical step is to deactivate the MSA system application (MIUI System Ads), which is responsible for collecting data about your actions and then showing targeted advertising in various corners of the interface, without disabling this service, any further settings will only have a temporary or partial effect.
To do this, you need to go to your device settings. Find the Passwords and Security section, then select Data Access. From the application list that opens, find msa and put the slider inactive. The system will alert you that the service will stop working.
⚠️ Warning: After the slider is turned off, a countdown timer will appear for 10 seconds. Do not press the confirmation button immediately, wait for the time to end, otherwise the service may automatically activate again.
If you fail to turn off the service the first time, repeat the procedure 3-5 times in a row. Sometimes the server takes time to process the request, and persistence in this case plays a key role. After successfully performing the action in the access list, the status should change to "No access".
Also worth checking is authorization settings. Go to Settings → Passwords & Security → Access to Personal Data. Find in the msa list and disable it. This action will permanently break the connection between your device and the company's ad servers.
Customization of personalization and privacy
Once the primary advertising agent is blocked, you need to limit the collection of data about your location and preferences. MIUI has built-in mechanisms for analyzing user behavior, which are used to form advertising profiles. Disabling these features increases not only comfort, but also your level of digital security.
In the settings menu, look for the Passwords and Security section and go to the Privacy section. Here you are interested in the Advertising Services tab. In this menu, you must disable the Personalized Advertising option. This action will prevent the system from using your data to select ads.
- 🔒 Turn off the transmission of diagnostic data so that the system does not send error reports to the developers’ servers.
- 📍 Disallow applications from accessing geolocation in the background, unless there is an urgent need for this.
- 🛑 Reset the advertising ID in the Google Settings section for a full profile cleanup.
You should also check your Mi Account settings. Go to your account settings through the menu and find the privacy section. Make sure that all items related to improving user experience and collecting statistics are deactivated. This will prevent recommendations from appearing in system widgets.
Remember that some system applications may have their own ad settings, independent of global settings, so checking each privacy section is a must for Redmi 9C owners.
☑️ Confidentiality check
Cleaning up Xiaomi’s standard apps
Banner ads are often embedded directly into the interface of standard utilities such as Explorer, Downloads, Security and Music. Each of these applications has its own recommendation-receiving switch, which must be deactivated separately. Ignoring this step will cause ads to continue to appear even if the MSA is disabled.
Start with the Security app. Open it, click on the gear in the top right corner, and find Receive recommendations. Put the switch in the inactive position. You need to do the same thing in the Downloads app: open the menu (three dots), select settings, and turn off receiving recommendations.
| Annex | The path to adjustment | What to turn off |
|---|---|---|
| Conductor | Menu → Settings | Receive recommendations |
| Music. | Menu → Settings → Additional | Showing ads |
| Topics | Profile → Settings | Personal recommendations |
| browser | Menu → Settings → Notifications | Promotional notices |
The Topic app is similar. Go to the user profile, go to the settings and find Personal Recommendations. Disabling this feature will remove banner ads from the main screen of the theme and wallpaper store. This is especially important, since the theme store is one of the main sources of visual noise.
Also, be sure to check the settings of the Cleanup system application. Often, it is after the memory scan is completed that suggestions to install unnecessary games or applications pop up, and disabling the recommendations in this module will make the phone service process faster and more enjoyable.
What if the “Receive recommendations” item is not available?
Managing Notifications in the Browser
One of the most common reasons for ads to appear on the lock screen is notifications from sites visited through the built-in Mi Browser or Google Chrome browser. Users often accidentally allow sites to send push notifications, after which the phone screen turns into an advertising board, clearing these permissions is a critical step.
To start, open your browser settings. In Mi Browser, go to Settings → Privacy & Security → Site Settings. Here, find the Notifications and either disable them completely or remove specific suspicious sites from the list of permitted sites.
In Chrome, the algorithm is similar: click three dots in the corner, select Settings → Site settings → Notifications. Carefully review the list of sites that have permission to send messages. If you see unfamiliar addresses or resources with questionable content, immediately block them.
⚠️ Warning: Never agree to requests from websites for notifications unless you are 100% sure of the source. Often under the guise of a robot check, a request to allow spam mailings is concealed.
It is also recommended to install a third-party browser that specializes in ad blocking, such as Brave or DuckDuckGo. They have built-in protection mechanisms that do not require complex manual configuration. This will allow you to browsing the web without the constant risk of encountering aggressive marketing.
If the ads continue to appear even after clearing the permissions, it is possible that a malicious app is installed on the phone. Check the list of installed programs and remove any suspicious utilities, especially those that do not have an icon or name.
Disabling recommendations in the system interface
The MIUI shell on the Redmi 9C can offer “useful” cards and recommendations right on the desktop or in the lock menu, which often contain links to news, games or products, which are essentially disguised advertising, and can be removed through the desktop settings.
Push two fingers across the empty space on your desktop to open the edit menu. Click on the Settings button. Here you are interested in the More or Additional section. Find the Card to the left or Google Discover item and turn it off if you are not using the news feed.
Also worth checking is the lock screen settings. Go to Settings → Always on screen and lock. If there is an option called Carousel Mode or Glance, be sure to turn it off. This service replaces your wallpaper on the news and promotional images slideshow, while consuming battery power.
- 📱 Disable "Application Recommendations" in the folders on the desktop so that there are no download icons.
- 🔍 Remove Video and Music widgets from the home screen if they are broadcasting advertising content.
- 🚫 Stop displaying ads in Google Search (Google Settings) → Advertising settings).
After making all the changes to the desktop settings, it is recommended to restart the device, which will allow the system to apply new parameters and update the interface cache, you will notice that the launcher has become a little faster, and the visual clutter has disappeared.
💡
Complete cleaning of the interface is possible only with an integrated approach: disabling MSA, cleaning browsers and setting up the launcher must be done together.
Additional methods of blocking
If standard methods are not enough, you can use more advanced blocking methods, which require minimal interference with network settings, but give excellent results, and these methods are especially relevant for those who want to get rid of all kinds of banners.
One of the most effective ways to use private DNS. In the phone settings, find the Connection and Sharing section (or just Wi-Fi and the Internet). DNS-server (Private) DNS). Select the mode "Host Name provider" DNS" and enter the address: dns.adguard.com.
dns.adguard.comThis simple step will redirect everything. DNS-querying your device through AdGuard filters that automatically cut off known ad domains.It works globally for all applications, including games and browsers, without the need to install additional software.
Another option is to install specialized blocking apps like Blokada or AdGuard (APK-They create a local version. VPN-But remember, you can tunnel through the device and filter traffic, but you can also keep in mind that these applications can actually increase your battery consumption a little bit.
⚠️ Note: When using third-party DNS or VPN-Some applications of banks or telecom operators may stop working if there are problems, just return the settings. DNS in the meaning of "Automobile".
Using these techniques, combined with manually configuring the system, gives you almost 100% guarantee of no advertising, and your Redmi 9C will work as intended, quickly and without unnecessary distractions.