Xiaomi and Redmi smartphone owners often face intrusive calls from spammers and ad robots.This is not only annoying, but can be dangerous as scammers try to lure personal data. Fortunately, a powerful system tool to protect against unwanted content is built into the shell of MIUI and the new HyperOS.
Many users do not even realize that they do not need to download third-party applications to block. System anti-spam is already integrated into the phone and works at the operator or database level without using an extra battery. In this article, we will discuss in detail where to look for these settings and how to properly configure them.
We'll look at both of these interfaces, the classic one for the old versions and the updated one for the current models, and understanding how this module works will allow you to forget about calling with the suggestions of "find a loan" or "win the lottery."
Location of the function in different versions of MIUI and HyperOS
Xiaomi’s shell interface is constantly changing, and the path to settings can vary depending on the Android version and regional firmware. In most cases, the system blocker is inside the Security app, which is preinstalled on all the brand’s devices.
However, in recent updates to HyperOS, the logic of the work has been slightly changed to harmonize with global standards. If you do not find the right item right away, try searching for your phone settings. Type the word "lock" or "spam", and the system will point the way.
It is important to note that some functions, such as identifying the numbers of unknown organizations, may require an Internet connection, and databases are updated regularly, allowing for effective filtering of new fraud numbers.
- 📱 Open the Security app (green shield icon).
- 📞 Find the Antispam or Block section».
- ⚙️ Click on the gear in the upper right corner to access settings.
⚠️ Attention: Global Firmware (Global) ROM) Some functions may be called otherwise, such as “Call Blocker” or “Filter spam calls”, depending on the language of the system.
Setup call blocking and SMS
Once you log into the management menu, you'll see several tabs that handle different types of communication, and you can flexibly set up rules for filtering incoming calls and text messages, and you can create your own blacklists or use automated algorithms.
Calls can be locked to all unknown numbers, hidden numbers, or only those that contain certain prefixes, which is especially useful if you are attacked by a specific spammer that changes numbers but leaves a single city code.
In the SMS section, you can enable filtering of messages containing keywords such as “credit”, “win” or “promotion”, all blocked messages are not deleted, but moved to a separate folder where you can look in case of a filtering error.
To add a specific number manually, go to the appropriate tab and click the add button. You can choose to block calls, SMS or both types of communication at the same time for the selected contact.
Use of cloud databases
One of the strengths of Xiaomi’s ecosystem is its ability to connect to cloud databases, which allows the smartphone to check the incoming number against a huge list of known spammers and scammers in real time, without which the phone only blocks the numbers you entered manually.
To activate this option, you need to go to the anti-spam settings and find the item associated with the “Database Update” or “Cloud database”, where you can select the region (for example, Russia or Ukraine) and the type of numbers to be determined (financial organizations, delivery, taxis).
Using cloud services requires permission to access the network, and if you want maximum privacy and don't want your phone to match numbers with servers, you can turn it off, but the effectiveness of the security will be greatly reduced.
How often is the database updated?
Working with black and white lists
Redmi Antispam contact management is based on two lists: black and white. The blacklist contains numbers that are blocked always. The white list, by contrast, is the exception - the numbers from it pass even if the "Block All Unknown" mode is turned on.
Add a number to the blacklist directly from the call history. Just click on the "i" or "Details" icon next to the number and select "Add to the blacklist," which will instantly put the subscriber on the ignored list.
The whitelist is useful for important contacts who may be calling from work or temporary numbers not saved in your phone book, such as couriers or support staff who call from different lines.
☑️ Setting up lists
Comparison of system blocker and third-party applications
Many users are wondering whether to install third-party apps like Truecaller if there is a built-in tool? the system solution from Xiaomi has a number of advantages, such as deep integration into the OS, no advertising inside the blocker itself and minimal resource consumption.
Third-party applications often offer more advanced databases collected by users around the world, but they require more permissions and can transfer your phone book to their servers for analysis.
The table below compares key characteristics for convenience of choice:
| Characteristics | Systemic Antispam | Third-party annexes |
|---|---|---|
| Integration into the LO | Native, deep. | Surface. |
| Battery consumption | Minimum | Medium or high |
| Updating the bases | Automatically via MIUI | Requires application activity |
| Confidentiality | High (local processing) | Depends on the developer's policy |
⚠️ Warning: Installing multiple applications to block calls at the same time can lead to conflicts and miss important calls.
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If system anti-spam skips spam, try to increase the filtering level in the settings or temporarily enable the definition of numbers via the Internet.
Problem Solving and Lack of Function
Sometimes users can’t find the Antispam section or it doesn’t work correctly, which may be because in some regions (e.g. Europe) due to strict data protection laws (GDPR), the functionality may be restricted or hidden by default.
If the Security app has been removed or damaged, it can be restored through the GetApps store or updated through a system update, and it is also worth checking whether permissions for the Phone system application to access the contact database and block calls are disabled.
In rare cases, cleaning the cache of the Security app helps. Go to Settings → Apps → All Apps → Security → Clear the data. Don’t worry, your settings and lock lists will not be deleted, only temporary program files will be reset.
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The lack of a visible partition is often solved by updating the Security app through the built-in GetApps store.