How to permanently block incoming calls from unfamiliar numbers on Xiaomi: the complete guide

Why Xiaomi is Calling from Unknown Numbers and How to Stop It

Spam calls and fraudulent calls have become an epidemic. 2026 According to Kaspersky, every second Xiaomi user in Russia receives at least one of the most expensive products. 1-2 The risk of unwanted calls a week, from "bank security services" to "best loans" is particularly high for low-end Redmi and low-end customers. POCO, where factory protection settings are often disabled by default.

The problem isn't just annoyance: scammers use social engineering to lure map data or install malware. - Forums Analysis 4PDA Mi Community shows that 38% of users are unaware of the built-in locking tools in the mobile app MIUI. Meanwhile, the system offers 5 ways to filter calls at once - from the basic blacklist to the basic blacklist. AI-Protection based on cloud databases.

This guide provides step-by-step instructions for all versions MIUI (including MIUI 14 and HyperOS), comparison of methods and tips for setting up third-party applications, with particular attention to the hidden feature "Silence Mode for Strangers", which Xiaomi does not advertise in standard settings.

Method 1: Blacklist in the standard "Phone" application

The basic method that works on all Xiaomi smartphones – from Redmi Note 10 to Xiaomi 14 Ultra. the blacklist blocks not only calls, but also calls. SMS Important: Numbers are saved in the Mi Account cloud, so the list is synchronized between devices.

How to add a number to the blacklist:

1. Open the phone application (tube icon)
2. Go to the Recent section and find an unwanted number.
3. Press the number. → Information → Lock down
4. Confirm the action in the pop-up window

To manage the entire list:

• 📱 Go to Settings. → Annexes → Phone. → Blacklist
• 🔍 Use search by contact name or number
• 🗑️ To delete, swipe the number to the left and press Delete
• ⚙️ Enable the option to Block Unknown Numbers (works unstable on some firmware)

Added all spam numbers|Synchronization with Mi Account is enabled|Checked the work of blocking test call|Disabled notifications about blocked calls-->

Method limitations: blacklist is only effective against repeating numbers. Fraudsters often use disposable numbers SIM-This method is better combined with other.

Method 2: Filtering unfamiliar numbers through settings MIUI

MIUI 12 and later offers a built-in call filtering system that analyzes numbers from Xiaomi and partners databases.A feature called Spam Protection and hidden in the depth of settings.

You can activate it like this:

1. Open the Settings. → Memory and applications → Phone.
2. Select Incoming Calls → Protection against spam
3. Turn on the switch to filter spam call
4. Set up a level of protection: 🛡️ Basic – only blocks confirmed spam 🔒 Medium – adds behavior analysis (frequent short calls) 🚫 Strict – Blocks all numbers not stored in contacts

💡

If important calls (e.g., from delivery services) are missing after filtering, add their numbers to the White List in the same menu.

⚠️ Note: When choosing Strict Mode, you will not receive calls from taxis, couriers and other services whose numbers are not stored in contacts.

Method 3: Silence for Strangers (hidden function)

A little-known possibility MIUI, It turns off all the calls from the numbers that are not in the contacts, and it comes in, but it doesn't vibrate or make any sounds, and it's only a notification in the call log.

How to turn on:

1. Open the Settings → Sound
2. Scroll down to the section Do not disturb
3. Choose Silence for Strangers
4. Turn on the switch and set exceptions: 📞 Repeated calls – if one number calls 2 times within 3 minutes, the call will pass ⏰ Schedule – Automatically turn off mode at night

Advantages of the method:

• 🔇 Total silence – no vibrations or sounds
• 📊 Numbers are saved in the journal for subsequent addition to the blacklist.
• 🔄 It works regardless of the phone application"

⚠️ Note: In some of the scoring for POCO This feature is called the Filter of unfamiliar calls and is located in Settings. → Annexes → Phone. → Incoming challenges.

Blacklist|Filtering in MIUI|The "Silence for Strangers" mode"|Third-party annexes|I'm not blocking calls.-->

Method 4: Third-party applications to block spam

Built-in tools MIUI They don't always handle new scams, and third-party apps offer advanced spam databases and additional features like this:

• 🌍 Global databases (including international fraudsters)
• 🤖 Automatic determination of robbrae by voice
• 📊 Statistics and analysis of challenges
• 🔄 Cloud synchronization between devices

Top.-3 Proven applications for Xiaomi:

🔧 How to set up Truecaller on Xiaomi:

1. Install the application and complete the registration
2. Enable permissions for phone, contact and SMS
3. Go to Settings. → Lockdown
4. Activate: 🚫 Block spam 🤖 Block Robobrae 🌐 Block international spam

Blacklist

💡

Truecaller consumes up to 5% of battery power per day due to background database synchronization. disable unnecessary notifications in the app settings to reduce consumption.

⚠️ Note: Apps like Truecaller require access to your contacts to run the cloud. If that’s privacy-critical, use offline solutions like Blacklist (no sign-ups).

Method 5: Blocking through a communications operator

Russian operators offer their own spam protection services that work at the network level and do not depend on the phone model. MIUI (11th), where there is no built-in filtration.

How to connect:

• 📱 MTS: Send. SMS with the text of the PROTECTION to the number 1114.The cost is 3 rubles / day.
• 🟢 Beeline: Dial *141# and follow the instructions. First 30 days free.
• 🟡 Megaphone: Install the MegaFon Protection app or send 1 to 0500.
• 🔴 Tele2: Connect the Antispam option via your personal account or by calling *225#.

The advantages of operator locking:

• 🛡️ It works even when the phone is off.
• 🌍 Filters calls at the network level (does not load the phone)
• 🔄 Updated spam number databases from the operator

⚠️ Note: Operators can block legitimate calls from banks or delivery services if their numbers are shared. Before connecting, check for reviews on forums (for example, on Pikabu or Zen).

Additional measures: how to reduce the number of spam calls

Blocking is a response to a problem, and to reduce the number of unwanted calls, follow these guidelines:

• 🔐 Do not publish a number in the public domain: Remove it from social networks, ads on Avito/Yula, public profiles. Use messengers to communicate.
• 📋 Register with virtual numbers: Services like SMS-Activate or OnlineSIM allow you to get a temporary number to register on websites.
• 🏦 Set up bank notifications: In mobile banks (Sberbank Online, Tinkoff) disable calls from the "security service" - all important messages come via push.
• 🛡️ Check the number before answering: If an unfamiliar number, enter it in the search engine or on the site kto-na-nomere.ru.

📊 Statistics on the sources of number leakage (Group-IB data, 2023):

• 🛒 42% of online retailers leaked
• 📱 23% of mobile apps with excessive resolutions
• 👥 18% – social networks and instant messengers
• 🏦 12% – Banking and insurance companies
• 📄 5% – public services (for example, public services)

Frequent problems and their solutions

Even after setting up the lock, Xiaomi users face problems. Here's how to solve them:

🔧 If nothing helps:

1. Reset the settings of the application Phone: Settings → Annexes → Application management → Phone. → Warehouse → Reset the settings
2. Update the firmware to the latest version MIUI HyperOS (new versions have improved the filtering system).
3. Contact Xiaomi via the official website, specifying the phone model and firmware version.

FAQ: Answers to Frequent Questions