Where is the blacklist on Android on Xiaomi: the complete guide

Modern Xiaomi smartphones, which run on Android with MIUI shells or the new HyperOS, have powerful tools to filter unwanted calls. However, the location of lock settings often varies depending on the firmware version and region, causing confusion among users. The blacklist is not just a call-out feature, but a comprehensive security system integrated into the system application “Security”.

Many device owners search for a separate menu in a standard “caller” without knowing that the management of forbidden numbers is brought into the deep system settings of the antivirus. It is important to understand that in the Xiaomi ecosystem, the functions of the blocker are closely related to cloud databases, which require periodic updates to work efficiently. If you encounter intrusive spam or want to limit communication with specific contacts, you will need to understand the architecture of system applications in detail.

In this guide, we will look at all possible ways to access the blocked list, analyze the nuances of how different versions of shells work, and offer alternative solutions for cases where standard methods do not work. Deep configuration will allow you not only to block numbers, but also to configure exceptions, and create whitelists for important contacts who can reach even in Do Not Disturb mode.

System Application Security: Control Center

The main tool for managing incoming traffic on Xiaomi smartphones is the built-in Security app, which hides the full functionality of the blacklist, not the standard dialing interface, it is a centralized hub that combines antivirus, memory cleanup and call blocker, accessed through the icon with a green shield on the desktop or in the Tools folder.

When you first start or after you reset your settings, the system can request permission to work with contacts and call logs. Without these permissions, call filtering will not work, because the application will not be able to analyze incoming connections. Once you confirm all requests, you need to go to the Antivirus section or immediately find the "Block" item in the bottom menu or in the "Tools" section inside the application itself.

The application interface may vary depending on the regional version of the firmware (Global, China, EEA). In some cases, the "Block" tab is hidden in the optional menu, which is called by clicking on the gear or tripoint icon in the upper right corner of the screen. MIUI algorithms are often updated, so the location of the elements can vary, but the logic remains the same: all filtering settings are concentrated in one place for the convenience of the user.

⚠️ Note: Do not delete or disable the Security system application, even if you use third-party antivirus software. its removal may lead to unstable system operation and inability to use the kernel-level call blocking function.

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If you can’t find the Security app on your desktop, use a global search on the system by pulling your finger down on the home screen and entering the word “Security” or “Security.”

Blocking settings through the Phone application

Although the core functionality is focused on the security application, there is a quick way to blacklist settings directly through the standard caller, which is convenient for quickly locking a specific number from a call history or contact list.

Find the number you want to block and click on it to open your contact card or details about the call. In the menu that opens, you should look for the “More” button (usually indicated by three dots) or the icon with the crossed-out circle icon. In the drop-down list, select the “Block” option** or “Add to the blacklist”.

Also in the Phone app itself, you can access the general lock settings. Click on the menu (three dots or stripes) in the main dial screen and select Settings → Inbox Lock. Here you will see the Unknown Number Lock switch and the Blacklist link, which will open the already familiar system blocker interface, which allows you to quickly activate the full isolation mode from strangers.

It’s worth noting that in recent versions of HyperOS, the “calling” interface has become more minimalist, and some features can be hidden under the “Call Settings” button. If you don’t see the lock option right away, check if the Google Phone or MIUI Dialer app has been updated, as new versions may have a modified menu structure.

Detailed setting of the blacklist rules

After you go to the lock menu (via the Security or Phone app), you get an advanced rule management functionality, so you can not just add numbers manually, but also customize complex scenarios. Click on the gear icon or menu in the upper right corner of the blocker screen to see the list of options available.

One of the most useful features is the ability to block keywords in the SMS-You can add words like "credit," "win" or "promotional," and all messages containing these phrases will be automatically hidden in the Spam folder, effectively protecting against advertising mailings that often ignore standard number lists.

You can also set up blacklist modes. You can choose to lock all hidden numbers, all unknown numbers (those that are not in your notebook), or create a completely customized list. The Blacklist menu has an Add button that allows you to manually enter a number, select it from contacts or take it from your call history. For each number you add, you can ask a comment to remember the reason for the lock.

⚠️ Warning: When you turn on Block All Unknowns, make sure that important contacts (couriers, doctors, delivery services) are stored in your phone book, otherwise you may miss a critical call.

Comparison of locking methods on different versions of MIUI

Xiaomi’s ecosystem is known for its variety of firmware, and locking features can behave differently depending on the Android version and shell. Understanding these differences will help you find the right setup faster. Below is a table comparing the availability of features in different use cases.

Owners of Global ROM devices may find that some features available in Chinese versions will be missing or limited due to legal restrictions in different countries, such as recording conversations or automatically identifying spam numbers may require additional inclusion in the settings of the region.

If you upgrade to HyperOS, look for a new system of widgets and quick settings. Lock management has become more affordable: often enough long-pressing the icon of the Phone app to see the context menu with fast lock mode, which makes it easier for those who do not want to dive into the deep settings menu.

Alternative applications for blocking

In cases where standard Android tools on Xiaomi smartphones can not cope with aggressive spam or the user wants to get more detailed control, third-party solutions come to the rescue. The market offers many applications that specialize in filtering calls and have their own extensive number databases.

• 📞 Truecaller is one of the most popular applications in the world, with a huge database of spam numbers, updated in real time by users around the world.
• 🛡️ Kaspersky Who Calls is a solution from a well-known antivirus vendor that provides reliable protection and identification of callers without transferring the content of contacts to the server.
• 🚫 Calls Blacklist is a minimalist design app that focuses solely on blocking calls and SMS, Minimum battery consumption.

When installing a third-party application, MIUI or HyperOS will issue a series of permission requests. It is critical to allow the application to access Contacts, Phone, and most importantly, enable auto-start and work in the background. Without these settings, Xiaomi’s aggressive energy saving system can “sleep” the application, and spam calls will start to come back.

Using third-party blockers can lead to conflict with the standard Security app. It is recommended to completely disable the built-in lock in the system settings if you choose to use third-party software to avoid double call processing and possible delays in determining the number. Application conflict is a common reason why the phone stops calling at all.

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Third-party applications are effective against international spam, but require careful configuration of MIUI/HyperOS permissions for the work tab.

The solution: when the blacklist doesn’t work

Even with the right setup, users can encounter situations where blocked numbers keep dialing or messages are coming, most often the problem is database synchronization or operating system restrictions. If you add a number to a blacklist but calls pass, check if that contact is on the Favorites or Whitelist list, which takes precedence over lockdown.

Another common reason is the aging of spam databases. In the Security app, find the "Update database" option (usually in the blocker or antivirus settings) and run the update. Without current databases, the phone will not be able to recognize the fraudster's number, even if it is known to thousands of other users. Regular updates are the key to effective protection.

It's also worth checking the Do Not Disturb settings. This mode can work independently of the blacklist and have its own rules for skipping calls. If Contact Only or Re-Call mode is enabled, some calls can go through filters. Make sure that these mode settings do not conflict with your desires to block.

⚠️ Warning: If after all the settings the problem persists, try clearing the cache of the Security and Phone app through the Apps menu» → «Application management. Do not delete data, only cache, so as not to lose your call history.

Frequently Asked Questions (FAQ)