Xiaomi, Redmi and Poco smartphone owners often face intrusive advertising calls and spam messages. The standard MIUI shell and the new HyperOS offer built-in tools to combat unwanted content that rely on number recognition algorithms. However, not everyone knows where the necessary switches are hiding, and continues to waste time locking each number manually.
Effective protection requires an integrated approach, including not only software settings, but also an understanding of the principles of network filters.
In this article, we’ll break down all the available methods, from built-in security features to connecting carrier services so you can completely clean your phone of information noise.
Built-in protection in the Security application
The main tool for combating unwanted calls in the Xiaomi ecosystem is the system application Security. It is pre-installed on all devices of the brand and works in conjunction with the Blacklist database, which is constantly updated. To activate the basic protection, you do not need to download additional software, it is enough to properly configure existing modules.
Go to the app and find the section that's responsible for the call blocker, and you can set rules for unknown numbers or hidden subscriber IDs.
- 🛡️ Open the Security app on the home screen.
- 📞 Select Antispam or Blocker from the tool menu.
- ⚙️ Click on the settings gear in the upper right corner of the screen.
- ✅ Activate Sliders Spam Blocking and Smart Blocking.
Importantly, MIUI algorithms can flag numbers as spam based on complaints from other users, which creates a collective shield, but sometimes leads to false positives, so it’s worth checking the lock log periodically.
💡
Periodically check the “Blocked” folder in the call log to make sure that important calls from couriers or doctors do not get there.
Set up a blacklist and filtering rules
Xiaomi’s security flexibility allows you to create your own filtering rules that go beyond standard definitions. You can block entire number prefixes, which is especially true when attacking specific region or mobile codes, a more advanced level of customization that requires attention to detail.
To add a specific number to the blacklist, you just need to find it in the history of calls or contacts, and after selecting the right subscriber, the system will offer several options, including blocking.
⚠️ Note: When blocking prefixes (for example, +7999*) Be careful not to cut yourself off from contact with real people whose numbers may coincide with the mask.
You can also create a lock schedule, which is useful if you want silence only during certain hours, like when you're sleeping or meeting, and the rest of the time, the phone will run normally, skipping all incoming calls.
- 📅 Use Do Not Disturb for Temporary Silence.
- 🚫 Add numbers through the Call Settings menu → Locked numbers.
- 🔢 Use the asterisk (*) and grille (#) symbols to create number masks.
Using the Mi Cloud Cloud Database
One of the key features of protection on Xiaomi devices is integration with the company’s cloud services. The spam database is updated in real time through Mi Cloud servers, which allows you to instantly respond to the emergence of new sources of advertising.
To make sure your smartphone is getting up-to-date data, you need to check the sync status, and users often turn off data transmissions for system services in order to save traffic, which reduces the effectiveness of anti-spam.
| Parameter | Recommended value | Impact on protection |
|---|---|---|
| Updating the base | Automatically. | High. |
| Synchronization | On (Wi-Fi) | Average. |
| Identification | Active. | Critical |
| Error report | Permitted. | Low. |
If you notice that the phone has stopped identifying known spam numbers, try forcefully updating the determinant databases in the security settings of the app, an action that often solves the problem of outdated data.
What to do if the cloud base is not updated?
Third-party applications for enhanced protection
Staffing is sometimes not enough, especially when spammers use spoofing technology, and in these cases, specialized applications from third-party developers, such as Kaspersky Who Calls, Yandex or Getcontact, come to the rescue, using their own, often more extensive databases.
Installing third-party software requires advanced permissions, and the application must access a call log and contacts to effectively analyze incoming traffic and verify numbers against cloud listings.
- 📲 Download the app from the official Google Play store or GetApps.
- 🔐 Grant rights to read the call and contact log.
- 📞 Install the app as the main number determinant in your phone settings.
- 🧹 Clean the app cache regularly for proper operation.
It is worth considering that using multiple determinants at the same time can lead to conflicts. Android system allows you to choose only one application to handle incoming calls, so you will have to decide on the priority service.
⚠️ Note: By installing third-party determinants, you consent to the transfer of your contacts to the developer's servers.
Filtration setting SMS-message
Spam attacks not only through calls but also through SMS. The Messages app on Xiaomi also has a powerful filter built in, which can be turned off by default, analyzes text messages and sends suspicious emails to a separate folder without disturbing the user with notifications.
To activate the protection, open your message settings and find the filter section, where you can enable keyword blocking, which is especially effective against similar loan offers or gambling.
You can manually add trigger words like "winning," "credit," "bet," or the names of popular bookmakers. Any message containing these words will be automatically hidden.
☑️ Filter setting SMS
Remember to periodically look into the spam folder, especially if you are waiting for a confirmation code from a bank or service. Sometimes too aggressive filters can mistakenly classify important service messages as advertising.
Services of telecom operators as an additional barrier
If software methods don't work 100%, you should turn to the tools of your mobile operator. The largest providers (MTS, Beeline, MegaFon, Tele2) offer antifraud and spam protection services at the network level, which means that the call is blocked even before it reaches your smartphone.
These services are usually paid or share-free (as part of a subscription), but they have a high efficiency ratio. The operator sees the structure of the call and can cut off the robots dialers.
It is often enough to send a short connection. USSD-This solution is ideal for those who do not want to install unnecessary applications on the phone.
💡
The combination of built-in anti-spam Xiaomi and network protection operator gives the maximum result, covering the vulnerabilities of each method separately.