How to set up a blacklist on Xiaomi

Modern Xiaomi smartphones are often targeted for intrusive advertising and spam. Blocking unwanted contacts is not just a convenience, but a necessity to maintain productivity and peace of mind. MIUI a powerful built-in functionality is implemented that allows you to effectively manage incoming calls and SMS-messages without installing third-party software.

Users no longer need to search for complicated workarounds or buy paid applications. All the necessary tools are already integrated into the standard interface and ready to work immediately after buying the device.

In this article, we'll take a look at all the ways you can isolate yourself from unwanted communication, and you'll learn not only to manually make contacts on the stop list, but also to use automatic filters that detect spam, so you can have complete control over who can reach you.

Use of built-in security application

The main tool for spam protection on Redmi and Poco smartphones is the System Security app, which is where the lock control center works at the system level, not just a single application, and to get started, you need to open a green icon with a shield, which is usually located on the desktop or in the Tools folder.

Inside the application interface, you'll find the Antispam section, which is responsible for filtering incoming traffic, where you can see the statistics of blocked calls and messages, and access the blacklist settings. The interface may vary depending on the version of MIUI, but the logic remains the same for all models.

Clicking on the gear icon in the top right corner will take you to the settings menu, where you can activate the function of blocking unknown numbers or hidden identifiers, and the option to enable "Silent Mode", when calls from blocked subscribers will not wake the phone with vibration or sound, but simply remain in the log of missed.

It is important to understand that the system blocker works autonomously and does not require a constant Internet connection to function. The spam number database can be updated periodically, but the basic rules work locally on the device.

Blocking through call log and contacts

The fastest way to restrict a particular subscriber's access is to use a call history, which is ideal when you've just received a call from a stranger or a harassing telemarketer, and you want to prevent repeated attempts to communicate. You don't have to dig into the deep settings menu, it takes a few seconds to do everything.

Open the standard Phone app and go to the Recent tab. Find the number you want to block. Click on it and hold your finger for one to two seconds before the pop-up menu appears. In the action list, select Block or Add to the Blacklist.

Alternatively, you can access the contact card, if the number is saved in your phone book, open a detailed description of it, at the bottom of the screen or in the menu of three dots (or gears), you will have a lock option, and once confirmed, this subscriber will no longer be able to call you or send an SMS.

• 📞 Instant lock: allows you to close access immediately after a call.
• 📱 Contacts: convenient for blocking friends or organizations.
• 🔒 System level: the ban applies even when the screen is turned off.
• 📝 Event log: all attempts to communicate are saved in a separate log.

⚠️ Note: When blocking through a call log, make sure you choose the right number, especially if you have multiple contacts with similar names or if the number is hidden.

When blocked through a call log, the system automatically adds a number to the global list of banned, which means that the restriction will apply universally to all types of communication, including regular calls and messages.

Setting up filters for SMS and messages

Spam in the form SMS-Messages can be even more annoying than voice calls, as they often contain links to fraudulent sites or ads. Xiaomi has a separate tab for managing text messages in the anti-spam section.

In the menu "Antispam" go to the settings SMS-You can activate blocking of messages containing certain keywords, which is especially useful for filtering out casino ads, microloans or other intrusive services, and you can create a list of stop words yourself, such as "credit", "win", "promotion".

There is also a feature available to block messages from unknown numbers that are not saved in your phone book, a radical but effective method if spam is coming from different SIM cards, but be careful: you may miss important notifications from delivery services or banks if they use short numbers or new identifiers.

All blocked messages are not permanently deleted, but they are moved to a special folder "Blocked" inside the Messages app or in the anti-spam section, and you can always check this folder to make sure that nothing important has been hit.

Managing the list of blocked numbers

Sometimes you need to check who is on your blacklist or delete someone you have started talking to again, and you can manage the list through the same Security app in the Antispam section, and click on the Blacklist or Blocked button to see the full list.

The window that opens displays all the numbers that are restricted. Each number usually has a switch next to it that allows you to temporarily disable the lock for a particular subscriber without removing it from the list.

You can manually add a number if he hasn't called you recently. In the blacklist interface, find the "+" or "Add" button. Type in the phone number manually or select it from contacts. This is convenient for preventive protection against known fraudulent schemes.

Regularly checking this list helps keep digital hygiene in order.Remove numbers that are no longer relevant so you don't get confused in the future.

Automatic locking of unknown and hidden numbers

One of the most useful functions in MIUI It is possible to block all calls whose ID is hidden (No Caller). ID). Fraudsters often use this feature to remain anonymous. Activation of this option is in the settings of the Security app" -> "Antispam" -> "Settings".

You can find a "Block Hidden Numbers" switch here, and when activated, any call without a number will be automatically rejected by the system, and the subscriber will hear the signal busy, and you will not receive any notification, which will save your nerves.

The option "Block all unknown numbers" is also available, and unlike hidden numbers, this applies to all numbers that are not in your phone book, and use this feature with caution, as it can block calls from couriers, doctors or colleagues whose numbers you do not already have.

• 🛡️ Hidden numbers: complete anonymity of the caller is blocked.
• 📚 Unknown numbers: blocked all those who are not in contact.
• 🔔 Exceptions: the ability to set up a whitelist for important services.
• 📉 Noise reduction: The phone only rings when needed.

These settings are especially relevant for people who want complete silence from strangers but are afraid to miss a really important call, and in such cases it is better to use Do Not Disturb mode with setting exceptions for selected contacts.

Do Not Disturb as an Alternative

If you need to temporarily limit incoming calls, but don't want to blacklist people forever, use Do Not Disturb mode. This tool is built into Android and is available through a notification curtain or audio settings, and allows you to create flexible silence schedules.

In the mode settings, you can specify that calls are only allowed from contacts on the Favorites list or from all contacts in the phone book. All other calls will silently be deflected or simply will not emit a sound, depending on the selected parameters.

It's a great way to shut yourself out of the world during work, sleep or meetings. Unlike the blacklist, which works all the time for specific numbers, Do Not Disturb mode is a temporary system state that's easy to turn on and off.

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Set up automatic Do Not Disturb mode on schedule, for example, from 23:00 to 07:00, so that night calls do not wake you up.

Check notification settings for important messengers to avoid missing an urgent message.

Frequently Asked Questions (FAQ)