Today’s Xiaomi smartphones handle hundreds of incoming calls every day, and not all of them are desirable. Intrusive spam, advertising calls or contacts of former colleagues can seriously disturb the peace of the owner of the gadget. It is for such cases that the shell of MIUI and the new HyperOS has a powerful filtering tool that users used to call “blacklist”.
In this article, we will discuss in detail all possible ways to manage unwanted numbers. Call blocking is not just a function of calling denial, it is a set of settings that includes a set of settings. SMS-filters, notifications, and automatic responses. Understanding how this system works will allow you to completely isolate yourself from information noise. We'll look at standard methods through Security, phone settings, and third-party apps.
Importantly, the menu layout may vary slightly depending on the firmware version and the region the smartphone is released for. However, the logic of the anti-spam protection system remains the same for all devices of the brand. Whether you use a budget Redmi Note or a flagship Mi, the algorithm of actions will be similar. Let's dive into the settings and learn how to manage your telephony professionally.
Searching through the Security App
The fastest and most reliable way to get to the settings you need is to use the system app Security, which is pre-installed on all your devices, and has a green shield icon, and that's where the basic security tools for your device, including antivirus, memory cleanup, and of course, call filter, are concentrated, and it's the flight control center for your digital security.
Once you start the app, you scroll down to the Tools section, and you'll find an icon called Blocker (or Antispam in some localities), and clicking on this will open a menu where you can configure the rules for incoming connections, and the locker in this shell is system-level, so it's more efficient than any third-party application.
Inside the Blocker menu, you'll find a list of already blocked numbers and a new add button, and you'll find the Blacklist settings, which you can click on the corresponding gear icon or three dots in the corner of the screen, which is the main path for most users who want to make quick changes.
Why does the Security menu look different?
It's worth noting that this section is constantly updated, and recent versions of HyperOS have added smart spam recognition algorithms that can work even without an internet connection using a local database, making call protection even more efficient and faster.
Configure via a standard call
The second, equally important, route is through the standard call app, and many users don't realize that the call settings are hiding advanced filtering features. To get there, open the Phone app (green handset) and look at the three dots or gear icons in the upper right or lower corner of the screen.
In the menu that opens, you need to select Settings, and then find the Lock or Antispam section. Depending on the shell version, this item may be called Call Filter. This item duplicates the features available through the security application, but accessing them from here is often more logical for those who just received an unwanted call.
The advantage of this method is that you can set the lock right after you've talked or watched a missed number, for example, if you've received a call from an unknown number, you can immediately go to the story, select a number, and add it to the ignore list without having to click through the menu, which saves time and reduces stress.
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Use voice input to find settings. Say “locking settings,” and the phone will open the menu itself if you have Google Assistant or Xiao AI enabled.
If you don’t find the right partition, try switching to a standard Classic or Default theme.This will bring all the settings back to the factory look, and you won’t get lost in the interface.
Adding numbers from call history
The most common blacklist scenario is to block the specific number that just called, which is as simple as possible in MIUI, and doesn't require any deep diving into the settings, but open a call log that displays all the incoming and outgoing connections.
Find the number you want on the list. Make a long tap (tap and hold) on the line with the number or contact name. You'll see a pop-up menu with multiple options. Among them, you'll find the item "Block" or "Add to blacklist." When you click on it, you'll instantly send that number to the ignorant.
Alternatively, you can tap the "i" icon in a circle or the arrow to the right of the number to open the contact card. At the bottom of the screen or in the three-point menu, you can also have a lock option, which is convenient because you can see all the information about the caller before you decide to completely isolate the caller.
☑️ Checking the number lock
Once you add a number to the list, the system can offer additional options, such as sending. SMS-message to the caller that his number is blocked, or block only voice calls, but permission to SMS. Flexibility of settings allows you to finely adjust the level of availability for different contacts.
Manual addition and list management
Sometimes you have to block a number that is not in your call history, or you have to enter a whole group of numbers manually, and you have to go back to the Blocker menu through the Security app, and you'll see a list of all the current restrictions.
Click on the Add button (usually a plus in a circle) and the system will offer several options: select from contacts, take from the history of calls or messages, and enter a number manually. The manual typing function is useful if you know the operator code or prefix from which spam is coming and want to block a whole series of numbers.
You can create block categories in the same menu, like "Advertising," "Fraudsters," or "Exes," and while visually it's a single blacklist, structuring helps you quickly find and unlock the right contact in the future if things change, and managing contacts requires careful attention so that you don't accidentally block important people.
Remember to check this list periodically. Hundreds of records can accumulate over time, which doesn't affect your phone's performance, but makes navigation difficult, and regular cleaning is a sign of good taste in digital hygienic maintenance on your smartphone.
Do Not Disturb Mode and Hidden Numbers
Not only does Do Not Disturb, but unlike a blacklist that blocks specific numbers, it blocks all calls except those on the whitelist or selected contacts, a radical but effective way to keep quiet.
You can find settings for this mode by going to Settings → Sound and vibration → Do not disturb. You can set your schedule (e.g., turn on automatically at night) and exceptions. This is especially useful for those who want to cut off all noise, leaving the communication only for the closest ones.
Also worth mentioning is the hidden number lock, which is the "Block Hidden Numbers" option in the Blocker settings, which will prevent calls from those who hide their subscriber ID, but be careful: this can be called from banks, clinics or important services.
Combining blacklist and Do Not Disturb mode has the maximum effect, so you can use Do Not Disturb at night and rely on smart filtering in the daytime to balance accessibility and personal space.
Table of comparison of blocking methods
To organize the information, let's compare the different ways you manage unwanted contacts. Each method has its own advantages and use cases, and the choice depends on the specific goals of the user.
| Method | Where to find out. | What's best for? | Difficulty |
|---|---|---|---|
| Through Security | Security annex | Global governance and settings | Low. |
| From the call history. | Call magazine | Quick lockdown of recent numbers | Very low. |
| Through Contacts | Address book | Blocking familiar contacts | Low. |
| Don't disturb. | Settings → Sound | Total silence at a given time | Medium |
As you can see from the table, it's easier to use call history for one-off actions, and the Security app is better for fine-tuning the rules. The combined approach allows you to cover all possible scenarios of invasion of personal space.
In an era of total digital noise, being able to effectively filter the incoming stream of information becomes a critical skill: Your phone should serve you, not distract you.
Frequent questions and problem-solving
Despite the simplicity of the interface, users often have questions related to the operation of the blacklist: Why does the caller hear the beeps when it is blocked? Where do SMS go from blocked contacts? Let's take a look at the most popular questions.
Will the blocked user see that he is on the blacklist?
Can I recover deleted SMS from the blacklist?
Does the blacklist work if the phone is turned off?
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The blacklist on Xiaomi works locally on the device and does not require constant database updates for basic locking by number.
In conclusion, using the locking features correctly on Xiaomi makes your smartphone a reliable shield from the outside world: Don’t be afraid to experiment with settings, create rules for different contact groups, and use all the available MIUI tools for your comfort.
⚠️ Attention: Blocking short numbers (5 digits) from which confirmation codes from banks and services come may make it impossible to log in to websites.
⚠️ Note: When you reset your phone to factory settings, all the numbers saved in the blacklist will be deleted. Before the reset procedure, it is recommended to take a screenshot of the list or export contacts, if this option is available in your firmware version.
Now you know where the blacklist is on Xiaomi's phone and how to use it. Use that knowledge wisely to keep your communication enjoyable and safe. Technology should make life easier, and in the case of Xiaomi, it does it quite effectively.