Spam calls have become an epidemic: according to the FAS Communications Commission, in 2023, every second smartphone owner in Russia received at least one fraudulent call a week. Xiaomi Redmi owners are no exception — despite the built-in security tools, many users continue to face intrusive calls from “banking services”, “communication operators” and other scammers. The problem is compounded by the fact that standard methods of blocking (such as adding a number to a blacklist) often do not work: scammers use swapping numbers (spoofing) and automated systems of mass calls.
In this article, we will discuss 7 Proven ways to disable spam calls on Xiaomi Redmi – from hidden settings MIUI We will focus on methods that work even against gray numbers (for example, starting with the use of artificial intelligence). +7495 or +7800). All instructions are relevant to Redmi Note models 12/13, Redmi 10/11, POCO X5 and other devices on MIUI 14/15 (including global and Chinese firmware versions).
1. Built-in spam filter in MIUI: how to enable and configure
Xiaomi manufacturer integrated into the shell MIUI The software is designed to protect against spam, known as Security (formerly Cleaner), and not only blocks calls, but also blocks calls. SMS-It's not working at full capacity by default. Here's how to activate it correctly:
Open the Security app (the shield icon) and go to the Spam Protection section, where you have three key options:
- 📞 Call blocking – includes filtering incoming calls using Xiaomi spam number database.
- 📩 Blocking messages - cuts off SMS from suspicious numbers (including Nigerian letters) and phishing).
- 🔍 Number checks – shows the caller’s reputation (e.g., “Cracker: Bank Spam»).
Important: Xiaomi databases are updated every 1-2 weeks, so some new spam numbers may slip. To increase protection, enable Cloud Verification in the module settings, which will allow the system to compare incoming numbers with the global database used by millions of Redmi owners around the world.
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After the update MIUI The "Spam Protection" section is gone -- check if the Security app is on the menu. Some firmwares have it hidden: to return it, go to Settings. → Annexes → Application management → Show system and find com.miui.guardprovider.
2.The blacklist: how to add a number to the lock permanently
The most obvious way to combat spam is to blacklist it, which Xiaomi Redmi can set up in two ways: through the Phone app or through System Settings. Let's look at both.
Method 1: Through a call log
- Open the Phone app and go to the call log.
- Find a spam number, click on it and select Block (or Blacklist).
- Now, call from this number will be automatically dropped.
Method 2: through system settings
Go to Settings. → SIM-maps and mobile networks → Call locking. You can do it here:
- 📱 Add the number manually (enter it in the field Add number).
- 🔄 Import a list from a file (supports.txt and.csv formats).
- 🚫 Set a lock for all unknown numbers (option to Lock Unknown numbers).
Is the number added to the lock through the call log?
Is the option "Block Unknown Numbers" activated?
Has the spam number database in the Security app been updated?
Have you checked your blacklist synchronization settings with your Mi Account?
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Important detail: the blacklist in Xiaomi syncs with the Mi Account, but only if the option Sync data in the profile settings is enabled, without this, the lock will reset after changing the device or resetting.
3. Hidden MIUI settings: how to block "gray" numbers
Fraudsters often use numbers with non-existent codes (e.g., codes, +7495xxxxxxx or +7800xxxxxxx), which are difficult to block by standard methods. MIUI There's a hidden feature that allows you to filter these masked calls:
Go to Settings → About Phone and 5 times click on the MIUI Version to turn on Developer Mode. Then go back to the main settings, open Additional → Developer and find the option to Block Calls by Template (or Call Block by Pattern in English).
+7495*
+7800*
+37525*Once saved, all calls starting with the prefixes will be automatically rejected, a method that is particularly effective against bank spam, where scammers use numbers with the code 495 (Moscow) or 800 (free lines) en masse.
"Bank fraudsters" (like "your card is blocked")
“Telecommunication operators” (tariff proposals)
"Support Services" (Microsoft, Yandex, etc.)
"Advertising of services" (windows, loans, insurance)
"Other"-->
4. Third-party apps: top-3 spam-blocking software
If the built-in MIUI tools fail, third-party apps come to the rescue, and we tested dozens of programs and selected the three most effective Xiaomi Redmis:
| Annex | Features | Cons | Reference |
|---|---|---|---|
| Truecaller | 500 million numbers: Real-time spam detection SMS and fake numbers | Registration is required, sometimes wrong with clean numbers | Google Play |
| Sparkling | Integration with the Sber ecosystem Blocking by category (fraudsters, collectors) Works without the Internet (offline database) | Only for Sberbank clients, limited base | Google Play |
| Hiya | Minimalist interface Geolocation blocking (for example, only Russian numbers) No advertising | Fewer features than Truecaller | Google Play |
Before installing, check the permissions of the application: it must request access to the Call Log, SMS and Contacts. Without these permissions, the lock will not work. Also note the automatic database updates - outdated spam lists are useless.
How to check which app blocks calls?
5. Setup of the operator: how to turn on protection at the level of the SIM-card
Many Russian operators (MTS, Beeline, Tele2, MegaFon) offer their own spam blocking services, which work at the network level, so they are effective even against numbers that bypass the lock on the phone.
- 📶 MTS: send SMS with the text of the PROTECTION to the number 111 or activate the option in your personal account (lk.mts.ru).
- 📶 Beeline: connect the service "Spam Protection" through USSD-team *110*789# or in the My Beeline app.
- 📶 Television2: Free Antispam option is enabled on command *155*1#.
- 📶 MegaFon: Service "Protection from fraudsters" - send 1 to the number 0500.
Operators are usually free, but they have restrictions, such as MTS blocking up to 100 numbers per month, and Tele2 only calls from suspicious prefixes (+7495, +7812, etc. Combine this method with built-in tools for maximum protection. MIUI.
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Operators block spam before the call reaches your phone, which reduces battery load and eliminates "missed" log calls.
6 Radical measures: how to disable all incoming calls except contacts
If spam calls are becoming unbearable, you can go to extreme lengths to set up your phone so that it only accepts calls from numbers in your address book, a method that is suitable for those who are communicating mostly with loved ones and colleagues, and here's how to implement it:
Go to Settings. → SIM-maps and mobile networks → Block calls and activate the option to Accept calls only from contacts:
- 📵 All calls from unknown numbers will be automatically dropped.
- 🔔 You will hear one short signal (if Lock Notice is enabled).
- 📥 Spammer numbers will not appear in the call log.
The downside of this method is that you may miss an important call (such as from a courier or doctor). To mitigate the risks, add frequent service numbers (such as 112, 103, or your clinic number) to your contacts. Also check if your address book is synced to your Google or Mi Account, which will help you reset your contacts.
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If you need to temporarily allow calls from all numbers (for example, while waiting for an important call), turn off lock mode through the Quick Settings Panel. To do this, swipe down from the top edge of the screen and find the Call Lock icon (if not, add through the panel editing).
7.Additional measures: how to protect yourself from spam at the system level
Besides blocking calls, you should take care that scammers don't get your number at all.
- 🛡️ Turn off the display of your social media number: check your privacy settings on VKontakte, Facebook, Instagram and Telegram. Make sure your phone is not visible to anyone.
- 📋 Use the “second number”: use virtual numbers to register on websites and services (for example, via SMS-activate or SMS-activate). 5sim).
- 🔄 Change regularly SIM-card: if your number is in the database of spammers, it is easier to order a new one SIM Operator (many provide this service for free 1 time per year).
- 🚫 Don’t respond to spam: Even if you hang up right away, scammers will know that the number is “live” and will call more often.
Also, check to see if your number is leaked to public databases, such as 2ip.ru/phone or Contour.Focus, and if your phone is detected in a data breach, consider changing it.
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Fraudsters often use “social engineering”: they can introduce themselves as bank employees whom you “call” through an allegedly sent SMS. Never confirm transactions by phone that you did not initiate personally!
FAQ: Frequent questions about blocking spam calls on Xiaomi Redmi
❓ Why spam calls keep coming despite blacklist?
❓ Can I block calls from international numbers?
❓ Why After Updating MIUI The locking settings are missing?
❓ How to block SMS-spam on Xiaomi Redmi?
❓ Does these methods work on Redmi with custom firmware?
If none of the methods suggested worked, check if there is malware on your phone that can intercept calls. To do this, scan the device using Google Play Protect or antivirus (for example, Dr.Web or Kaspersky).