How to block a message to Xiaomi: the complete guide

Modern Xiaomi smartphones, working on the basis of shells MIUI or the new HyperOS, which has powerful built-in security tools that are often underrated by users, one of the most useful features is the ability to effectively filter incoming security. SMS-This is especially true in the era of SMS spam, intrusive advertising and fraudulent attempts to access your data through phishing links.

Unlike many other manufacturers, Xiaomi does not require third-party apps to create a reliable blacklist, and all the necessary algorithms are already built into the Messages system application and the Security utility, and these tools are set up correctly to completely isolate the phone from information noise, while maintaining the ability to receive important confirmation codes and notifications from banks.

In this article, we will take a look at all the available blocking methods, from manually adding a particular subscriber to a blacklist to configuring smart filters for keywords, learn how to work with system privacy settings and what hidden features the standard Android interface offers on devices of this brand.

Use of the built-in blacklist in the Messages appendix

The most direct and quick way to stop the flow of unwanted emails is to use the functionality of the correspondence app itself. Xiaomi smartphones use either the standard Google Messages app or a proprietary solution from the developer MIUI, depending on the region and version of the firmware.

Open the Messages app and find a dialogue with the intrusive sender. Click on the contact avatar or the three dots in the top right corner of the screen to open the details menu. In the options list that opens, you must find the Block or Blacklist option. Once confirmed, all future messages from that number will be automatically hidden.

• 📱 Open the dialog with unwanted contact in the app.
• 🚫 Click on the contact settings menu (three dots or avatar).
• ✅ Select the lock option and confirm the decision.

It is important to understand that blocked messages are not permanently deleted, but moved to a special section. You can always check their contents if, for example, you are waiting for a code from a bank, and the system mistakenly classified the email as spam.

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Periodically check the Locked folder for false filter positives to avoid missing important notifications from shipping services or banks.

Configure smart filters through the Security Center

The incoming traffic control is further configured by the Security system utility, which is the heart of the MIUI operating system. This is where you can manage not only specific numbers, but entire categories of messages, and access these settings through the main menu of the application or through the settings of the system itself.

Go to the Antispam section, which is usually located in the toolbox or in the Tools tab. This is where the SMS Filter switch is located. When you activate it, you start a mechanism that analyzes the contents of incoming emails for signs of advertising or fraud. The system uses databases of known spammers and heuristic text analysis.

⚠️ Note: When you turn on aggressive filters, there is a risk of blocking legitimate messages from notification services (for example, from online stores or courier services), if their texts contain stop words.

In filtering settings, you can choose a level of severity, from a soft mode that only flags suspicious emails to a hard one that completely hides them, and you can also block messages from hidden numbers or unknown senders, which is a great way to protect against accidental spam.

Blocking by Keywords and Templates

One of the most effective strategies to combat mass mailings is the use of keywords. Spammers often use certain text patterns, such as “winning”, “credit”, “promotion” or the names of popular lotteries. Adding these words to a blacklist allows you to automatically cut off entire groups of unwanted messages, even if they come from different numbers.

To configure this functionality, go to the filter menu in the Messages or Security app. Find the Keyword Filter section. Here you are asked to enter words or phrases that will automatically block the text of the email. Xiaomi system allows you to create a list of dozens of such triggers.

Be careful when adding too generic words, for example, blocking the word "code" may result in you not receiving an important notification from two-factor authorization, and it is better to use specific combinations that are specific to the spam you receive most often.

Managing a list of blocked contacts

From time to time, you need to re-examine the list of blocked numbers, you may have blocked an important contact by mistake, or the spammer has changed the SIM card and its old number is no longer relevant, and the management of this list in Xiaomi is centralized and conveniently organized.

To view the list, go to Messages and select Locked Numbers, which displays the full list of all contacts that are not allowed to access your inbox, and you can delete the number from the list at any time by simply clicking on the cross or selecting the Unblock option.

• 📂 Go to the Message Application Settings.
• 👥 Select the section for managing blocked contacts.
• ❌ Remove unnecessary entries or clear the entire list.

An interesting feature is the ability to import and export blacklists, so if you upgrade to a new Xiaomi smartphone, you can save your spam number database and quickly migrate it to a new device without having to manually reassemble it.

Specifics of work in HyperOS and new versions of MIUI

With the release of HyperOS and the upgraded versions of MIUI 14/15, some system applications have changed their interfaces, the logic of the work has remained the same, but the location of controls may have shifted, and new shells have tended to integrate security features directly into the dial-message interface.

Now, when an incoming message from an unknown number is sent, the system can immediately suggest a Block or Report Spam action, which speeds up the inbox cleanup process, and it also improves the ad number algorithm, which now checks with real-time cloud databases.

New device owners should look at privacy settings in the Privacy Protection section, which includes a feature called Fraud Protection, which can automatically block messages containing suspicious links or masquerading as official authorities.

⚠️ Note: Newer versions of the software may reset filter settings after a major system update, check the relevance of your blacklist after each firmware update, and HyperOS also offers flexible notification settings: You can allow the preview of the message to be displayed on the locked number to see the essence, but not to receive an audible signal.

Frequently Asked Questions (FAQ)

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The comprehensive use of blocking by numbers and keywords provides maximum protection against spam, keeping the main list of messages clean.