Spam calls and intrusive offers from scammers have become a modern scourge, forcing smartphone users to actively use built-in protections. Owners of the Chinese giant's devices often wonder where the blocked contacts are in Xiaomi to check the list or return an important number to the whitelist. MIUI system, and now the new HyperOS shell, offers powerful tools to filter incoming calls, but the logic of its location is not always obvious to beginners.
Understanding the structure of the security menu is essential for anyone who wants to control their digital hygiene. The blacklist in Xiaomi phones is integrated deep into system applications, making it more efficient than third-party counterparts. In this article, we will discuss in detail all the ways to access hidden numbers, how to add and remove them, and the nuances of the antivirus module.
Incorrect filtering settings can cause you to miss a really important call from a doctor or courier, which is why it is important to know not only how to block, but also how to quickly unlock a subscriber. We will look at standard methods through settings, the capabilities of the Security app, and hidden features available through the engineering menu or ADB-Teams for Advanced Users.
The main path through the Security application
The most reliable and quickest way to get to the list of ignored numbers is to use the regular system application Security, which is the central control node of the device's protection and contains the anti-terror module, which is what locks you. Open the green icon with the shield on your desktop or in the Tools folder to get started.
Inside the application, you need to find the filtering partition. The interface may vary slightly depending on the version of MIUI or HyperOS, but the logic remains the same. You need to click on an icon called "Antispam" or "Blocking," and that's where the unwanted contacts database and the filtering rules are stored.
When you log into the anti-spam menu, look at the top of the screen or the side menu (three-dot icon or gear) and you can see the "Black List" or "Blocked" item, and you can click on it and you can see a complete list of all the numbers whose calls and SMS are automatically blocked by the system.
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If you can’t find the Security icon, search the system: just type the word “Security” or “Security” in the desktop search bar.
Importantly, this section not only allows you to view the list, but also configures a smart lock, and the system is able to detect spam based on other users' complaints and databases, if the appropriate option is enabled, eliminating the need to manually enter each ad number.
Alternative access through call settings
For those who are familiar with the classic way through the standard call interface, there is an alternative method that allows you to get to the same settings without going through the security application. Open the standard Phone (green handset) application, through which you usually make calls.
In the upper right corner of the screen, there's a menu button represented by three dots or bars. Click on it to open the action list. In the drop-down menu, select Settings or Call Settings. This section contains all the options for incoming and outgoing connections.
Inside the settings, look for the “Blocking Inbox” or “Black List” section. The path can look like Settings → Blocking Inbox → Blacklist. This displays the same number list as the security application, since both interfaces access the same system database.
☑️ Checking the lock settings
The advantage of this method is that it is often more accessible when you just received an unwanted call, and you can immediately add a number to the exceptions or lock without switching between different system utilities.
List management: Adding and deleting numbers
Working with the database of blocked contacts requires understanding the principles of adding and deleting entries. The blacklist interface usually has an “Add” button (often indicated by a plus), clicking on it, you can select a number from the contact book, from the call history or manually enter it from the keyboard.
When you add a number, the system will prompt you to choose the type of lock, you can only disable incoming calls, only SMS-It's a flexible setup that allows you to block calls from your ex-partner, for example, but leave the option for text messages.
To remove a number from the list, just click on it (or the basket icon next to it) and confirm the action, then the subscriber can again call you, and the “Clear All” feature is available, which instantly removes the entire database of blocked contacts, returning the system to the factory filtering settings.
⚠️ Warning: When you remove a number from the blacklist, it doesn't automatically fall into the Favorites or any special groups. It just becomes a regular contact, and calls from it will take place as normal.
There's also the possibility of blocking by mask or region code, which is especially true for fraudsters who change numbers but leave the same prefix, and by typing in the first few digits, for example, you can block a whole group of subscribers.
Filtering rules and smart mode
Modern Xiaomi smartphones are equipped with algorithms that can analyze incoming traffic. The "Smart Lock" settings are available in the "Antispam" menu, where you can activate filters for hidden numbers, international calls or numbers not stored in the phone book.
One of the most useful features is keyword blocking. You can set certain phrases (like "credit," "winning," "promotion"), and if an SMS contains these words, it will be automatically deleted or moved to spam. It's a powerful tool to clear messengers and messages from ads.
You can also choose between “Blacklist Only” (only selected numbers are blocked) and “White List” (all but a select few are blocked), the second mode is radical but effective during periods of increased phone activity of fraudsters.
How does the cloud database of spam numbers work?
Remember to regularly update the signature databases in the antivirus settings, which are built into the same Security app. This ensures that your smartphone knows the fraud schemes and can effectively counter them.
Table of comparison of blocking methods
Different methods of contact management have their own characteristics, and below is a comparison table that will help you choose the best way to solve your situation.
| Method | Availability | Functional | Difficulty |
|---|---|---|---|
| Security Annex | Tall. | Full (calls, SMS, rules) | Low. |
| Call settings | Medium | Just calls and calls. SMS | Low. |
| Contact book | Tall. | Only a specific number. | Low. |
| ADB / Engineering menu | Low. | Deep System Configuration | Tall. |
As you can see from the table, for most users, the best solution is to use the Security app, which provides the most complete interface and allows you to fine-tune the rules. Methods through the ADB or engineering menu should be considered only in case of software failures or the need to import lists on a mass scale.
Synchronization and restoration of contacts
An important aspect is to save your blacklist settings when you change your device. If you use a Mi Account or sync with Google Contacts, your lock settings can be saved to the cloud.
When switching to a new phone, Xiaomi is advised to reset the original anti-terror settings, as the databases can be updated.In some cases, the old settings may conflict with newer versions of MIUI, so manually checking the list after data migration is mandatory.
If you accidentally delete an important number from a blacklist and want to return it to you, but don't remember it, you can use the call history. The Security app often keeps a log of blocked calls, where you can see who tried to reach you, even if the call was interrupted by the system.
⚠️ Warning: Resetting your phone to a factory setting completely clears the blacklist. be sure to take a screenshot or export important locks before completely cleaning your device.
For corporate users or those facing aggressive spam, it is recommended to keep an external file with fraud numbers, which will allow you to quickly restore protection on any device, simply by importing contacts into the blacklist again.
Advanced settings and hidden functions
For power users, there is the ability to manage locks via ADB (Android Debug Bridge) that allows you to script adding numbers or clearing the list remotely. The command to view current settings can vary, but often requires root rights or special permissions.
Some firmware versions offer a Quiet Mode feature for unknown numbers. Unlike full lock, the call is not reset and the phone simply does not emit sound and vibration, showing the missed call later. This is useful to keep an emergency call from being missed if spammers change numbers.
Also worth mentioning is integration with search engines, which allows you to select numbers based on Yandex, Google or Xiaomi’s built-in database, so you can see the name of the organization or the “Spam” mark before you even answer the call.
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The combination of a built-in blacklist and a cloud-based numbering database provides maximum protection against unwanted calls without installing third-party software.
Use these tools in a comprehensive way. Don't rely on just one security method. Regularly checking settings and updating databases is a guarantee of peace and quiet in your smartphone.