Permanent advertising on Redmi 9: a complete removal guide

Smartphone owners Redmi 9 often face a situation where the screen suddenly lights up with an advertising banner, even if you are on the desktop. This phenomenon causes irritation and significantly reduces the performance of the device, causing the processor to work harder in malicious processes. Typically, this problem occurs after installing applications from unverified sources or accidentally clicking on advertising links in the browser.

You can solve the problem of “advertising on your phone constantly, how to remove Android Redmi 9”, without resorting to the services of service centers. In most cases, this is not a hardware failure, but a software failure or the introduction of malicious code. We will look at all the ways to protect your Android, from simple settings to deep cleaning of the system from viruses.

Diagnostics of the source of pop-up windows

The first step is to accurately identify the culprit. If ads only appear when using a specific browser, the problem is local. However, if banners pop up on the desktop or during calls, it means that a hidden one is active in the system. Often such apps are disguised as harmless utilities: memory cleaners, flashlights or QR code scanners. malware agent. Often such apps are disguised as harmless utilities: memory cleaners, flashlights, or QR code scanners.

Pay attention to the application name that appears at the top of the pop-up window or in the notification shade. Sometimes the virus changes its icon to transparent and removes the name to become invisible in the general list. To identify such a parasite, you need to go to the settings and carefully study the list of installed software. Look for applications without a name or with a default icon.

If the visual search does not produce results, use the system task manager when the advertisement appears. This will allow you to see which application has come to the fore. On Xiaomi this function may be hidden, so the fastest way would be to use the safe mode to exclude third-party influence.

⚠️ Attention: Never click the buttons inside the advertising window, even the “Close” button. Often this is a trap that triggers the download of an even more aggressive virus or redirects to a phishing site.

Removing hidden viruses and junk applications

The most effective method of combating intrusive advertising is manual removal of suspicious applications. Go to the menu Settings, select item Applications and go to section All applications. Carefully scroll through the list from top to bottom. Pay special attention to apps installed shortly before the problem appeared.

Viruses are often disguised as system components. If you see an application with a name like "System Update", "Wi-Fi Service" or "Flash Player" that you did not knowingly install, it is most likely malware. Click on it and select the option Delete. If the button is inactive, you first need to revoke device administrator rights.

To revoke administrator rights, follow the path Settings → Passwords and security → Privacy → Special access → Device administrator applications. Uncheck all suspicious items. After that, return to the list of applications and calmly remove the virus.

Setting up an ad blocker in the browser

Often the source of the problem is not a virus in the system, but allowed notifications from sites in the browser Chrome or MIUI Browser. Sites ask for permission to show notifications, and users mistakenly agree. After this, the site starts spamming advertising push notifications directly to the lock screen.

To disable this feature in Google Chrome, open the browser and go to Settings → Site settings → Notifications. Here you will see a list of all resources that are allowed to send notifications. Click on each suspicious domain and select Block or Delete.

Similar steps need to be done in a standard Xiaomi browser. Go to its settings, find the section Notifications or Push notifications and disable all unnecessary sources. It is also recommended to enable the built-in protection against malicious sites feature in the browser security settings.

Source type	Where to look for the setting	Action
Site notifications	Browser → Site settings	Block domain
System push notifications	Settings → Notifications	Disable application
Advertising in folders	Settings → Passwords and security	Disable MSA
Personalization	Settings → Passwords and security	Uncheck tick from advertising

Disabling system advertising MIUI

The shell MIUIinstalled on Redmi 9has built-in mechanisms for displaying advertising in system applications. This is not a virus, but a firmware feature that can and should be disabled. The main source of such advertising is the service msa (MIUI System Ads).

To disable, go to Settings → Passwords and security → Access to personal data. Find the application msa in the list and switch the toggle switch to the inactive position. The system will try to dissuade you several times by showing a countdown timer - just wait 10 seconds and confirm disabling.

It is also worth disabling ad personalization. To do this, go to Settings → Passwords and security → Privacy → Advertising services. Disable the option Ad personalization. This will not remove advertising completely, but it will make it less intrusive and irrelevant.

⚠️ Attention: The MIUI settings interface may differ depending on the firmware version (Global, China, EU). If you do not find the "msa" item, try searching in the settings by entering the word "advertising" or "ads".

List of system applications to disable advertising

In addition to msa, it is recommended to limit the receipt of data for applications: GetApps, Mi Video, Mi Music, (Cleaner). Go to the settings of each of them and find the “Receive recommendations” or “Show ads” switch, then disable it.

Using safe mode for scanning

If you cannot find the virus or the delete button is inactive, you need to boot your smartphone into safe mode. In this mode, only system applications are launched, and all third-party software, including viruses, is blocked. This is an ideal way to confirm the presence of malware.

To enter safe mode on Redmi 9, hold down the power button until the shutdown menu appears. Then press and hold the Turn officon on the screen with your finger. A pop-up window will appear asking you to switch to safe mode - confirm the action. The phone will reboot, and you will see the corresponding message in the lower left corner.

If the advertising disappeared in safe mode, then one of the applications you installed is to blame. In this mode, you can safely go into the settings and remove recently installed apps that are suspicious. After cleaning, simply reboot your phone as usual to exit Safe Mode.

Resetting settings and extreme measures

In situations where the virus has deeply embedded itself in the system or you cannot find the source of the problem, a radical method remains - resetting to factory settings. This will delete all data from the phone, so be sure to back up important contacts and photos before starting the procedure.

You can reset through the menu: Settings → About phone → Reset settings → Delete all data. Confirm the action by entering your screen unlock password. The phone will be cleaned and returned to the state it was in when purchased out of the box.

After resetting, do not restore applications from backup immediately. Install only the essentials and watch the device work for a couple of days. If the advertisement does not return, then the problem has been resolved. If it appears again immediately after connecting to the Internet, the virus may be contained in one of the applications that you install first.

⚠️ Attention: Before resetting the settings, be sure to remove the SD memory card, if you are using one. The virus may be on the card, and after the reset it will enter the system again when the drive is connected.

Preventing the appearance of advertising in the future

So that the problem of "advertising" no longer bothers you Redmi 9, follow simple rules of digital hygiene. Do not download applications from third-party sites and forums. Use only the official store Google Playwhere apps are tested for security.

Be careful when installing any utilities. Carefully read the permissions that the application requests. If a simple flashlight asks for access to your contacts, SMS and geolocation, this is a clear sign of fraud. Cancel the installation of such software immediately.

• 🛡️ Install a reliable antivirus, for example, Dr.Web or Kaspersky, and conduct a full scan once a month.
• 🚫 Do not click on bright banners with promises of winnings or urgent system updates in the browser.
• 🔄 Regularly update your Android system and all applications to close security vulnerabilities.
• 👁️ Check the list of applications with the "On top of other windows" right in settings and disable it for suspicious apps.

Why do advertisements appear even after the application is uninstalled?

Some viruses create their own shortcuts or services that remain on the system even after the main file is deleted. In this case, you need to clear the system cache or perform a full reset. It is also possible that you have several infected applications installed and you have deleted only one of them.

Is it possible to remove system advertising permanently without root access?

It is difficult to completely remove MIUI system advertising without root access, but you can disable its source (msa service) and personalization, as described in the instructions. This will remove 90% of intrusive banners. To completely remove system components, superuser rights are required, which voids the warranty.

Is it safe to use cleaner apps to remove ads?

You should only use proven utilities from well-known vendors. Many free “boosters” and “cleaners” from the Play Market are themselves sources of advertising and collect user data. It is better to use the built-in Security application from Xiaomi.

What to do if the "Delete" button is inactive (gray)?

This means that the application has received device administrator rights. You need to go to the security settings, find the "Device Administrator Applications" section, uncheck the desired application, and only after that the delete button will become active.

Does blocking ads affect the operation of legal applications?

Blocking pop-up ads and push notifications from sites does not affect the operation of instant messengers, social networks or banking applications. You will continue to receive important notifications from them. Only advertising integrations and spam are blocked.