Unsolicited calls from spammers, collectors or intrusive contacts can be a serious mess. Xiaomi smartphone owners (including Redmi and POCO models) have several built-in tools to block incoming calls, from basic MIUI features to hidden operating system settings. In this article, we will examine all the current 2026 methods, including time limits, blacklists and even hardware solutions for extreme cases.
Xiaomiโs main advantage in this regard is the flexibility of MIUI, which allows you to block calls both at the firmware level and through third-party applications. However, not all methods are equally effective: some work only for specific numbers, others cut off all unknown subscribers. We tested each method on devices with MIUI 14 and MIUI 15 so that you can choose the best option for your tasks.
โ ๏ธ Attention: Operator-level call blocking (method) โ5) may conflict with mobile banking and two-factor authentication services, check before activating whether important services use voice calls to confirm actions.
1. Blacklist in the standard app "Phone"
The easiest way to block specific numbers is to blacklist them through the built-in Phone app, which works on all Xiaomi devices regardless of the MIUI version and does not require superuser rights.
To add a number to the blacklist:
- Open the Phone app (the tube icon on the home screen).
- Go to the magazine tab and find the desired number.
- Click on the number, then select โฎ โ Lock down.
- Confirm the action in the dialog window.
To manage the list of blocked contacts:
- In the app, tap on the phone โฎ โ Settings โ Number locking.
- Here you will see all the numbers added and you can delete them or add new ones manually.
Number added to call log
The phone app is updated to the latest version
The option โBlock Unknown Numbersโ is enabled (if necessary)
Checked that the number is not saved in the contacts (otherwise the lock may not work)-->
โ ๏ธ Note: If a blocked subscriber calls from a hidden number (Unknown or Private), the standard blacklist will not stop him. โ3 or โ4.
2. Blocking of unknown and hidden numbers
Spammers often use number swapping or call from hidden lines, and MIUI has a separate setting to automatically block such calls:
Instructions for activation:
- Open Settings โ Applications โ Phone โ Lock numbers.
- Activate the switches: ๐ต Block unknown numbers (without an ID) ๐ต๏ธ Block hidden numbers (marked "Private") ๐ Block numbers from spam database (using Xiaomi cloud base)
Save the changes and restart the device (recommended for settings).
This function works at the system level and does not require an Internet connection, but it has limitations:
- ๐ซ Does not block numbers saved in your contacts (even if they are marked as spam).
- ๐ May miss calls from service numbers (banks, public services).
- ๐ฑ Does not work on custom firmware devices (for example, LineageOS).
Every day.
1-2 times a week
Rarely, but accurately.
Never.-->
3. Use of the application "Security" (Security)
Xiaomiโs proprietary Security app offers advanced spam protection tools, including keyword blocking and subscriber behavior analysis, a method that is more effective than the standard blacklist, as it uses machine learning to identify fraudsters.
How to set up a lock through Security:
- Open the Security app (shield icon).
- Go to the section Protection against spam โ Call settings.
- Turn on the options: ๐ Real-time number verification (cloud analysis) ๐ Blocking suspicious calls (by behavioral signs) ๐ Manual template entry (e.g., block all numbers with prefix) +375)
Exceptions
Advantages of this method:
- ๐ค Automatic update of spam numbers database through Xiaomi servers.
- ๐ Call frequency analysis: if one number calls you 3+ Once a day, the system will prompt you to block it.
- ๐ It works even for international numbers (unlike operator services).
How to bypass the lock through "Security"
4. Third-party applications for blocking calls
If the built-in MIUI tools arenโt enough, you can install specialized apps from Google Play, which offer advanced features such as:
- ๐ Cloud spammer databases (updated in real time).
- ๐ Flexible rules of blocking (by time, geolocation, keywords).
- ๐ Conditional notifications (e.g., โto allow family-only calls after 22:00").
Top.-3 Proven applications for Xiaomi:
| Annex | Features | Cons |
|---|---|---|
| Truecaller | Largest spammer database (500M+ numbers), identification of unknown subscribers | Requires registration, collects data about your contacts |
| Hiya | Category Blocking (Crackers, Telemarketing), MIUI Integration | Paid features for advanced analytics |
| Should I Answer? | Rating numbers according to user reviews, manual filter setting | The interface may seem complicated. |
โ ๏ธ Note: Apps like Truecaller require access to your phone book and call history. If privacy is critical, use offline solutions (like Blacklist).
Instructions for setting up Truecaller on Xiaomi:
- Install the app from Google Play.
- Register (you can use Google or phone number).
- In the settings, turn on: ๐ก๏ธ Blocking Spam (Section Protection) ๐ Replacement of the standard "Phone" application (optional) ๐ Sync with the cloud (to update the database)
spamming
๐ก
If notifications of missed calls have stopped coming after installing a third-party application, check the permissions for the Phone application in the Settings settings โ Applications โ Permissions Management โ Auto Run.
5. Locking calls at the operator level
If software methods donโt work (e.g., calls come from swapped numbers), you can activate the lock directly from the mobile operator, which works independently of the smartphone and blocks calls before they reach the device.
How to connect the service with popular operators:
- ๐ก MTS: Send. SMS block-text 1 room 111 (Use the command to manage the list *111*321#.
- ๐ก Beeline: Activate the service "Black List" through your personal account or USSD-team *110*789#. Cost โ 3 rub.
- ๐ก MegaFon: Connect the "Spam Protection" team *105*495#. First-time 30 days free, then 5 rub.
- ๐ก Television2: Use the team *220*1# All the people who enter (except the chosen ones).
Important: operator lock may conflict with voice authentication services (for example, in Sberbank Online or Public Services).
To add a number to the blacklist of the operator:
- Log in to the Personal account on the operator's website.
- Find the Services โ Call Blocking (the name may vary).
- Enter the number manually or select from the call history.
- Save the changes โ the lock will start to work within 1-2 hours.
๐ก
Operator lock is the only way to stop calls from swapped numbers (spoofing), which bypass the software filters of the smartphone.
6 Radical Methods: Do Not Disturb Mode and Flight Mode
If you need to completely disable incoming calls for a specific period (such as during a sleep or an important meeting), you can use Xiaomi system modes:
Method 1: Do Not Disturb (DND)
- Open Settings โ Sound and vibration โ Do not disturb.
- Select the Rules โ Add a rule.
- Set up the parameters: โฐ Time of action (for example, from 23:00 to 7:00) ๐ต Block: Select Calls and Messages โญ Exceptions: Add important contacts (e.g., Family")
Activate the rule โ now at the specified time all calls will be automatically reset.
Method 2: Flight Mode (Flight Mode)
If you need to immediately disconnect all connections:
- Pull down the notification panel.
- Click on the icon. ๐ซ Flight mode.
- For selective shutdown: go to Settings โ SIM-maps and mobile networks โ Flight mode and only disconnect the mobile network, leaving Wi-Fi.
โ ๏ธ Note: Do Not Disturb mode will not show blocked calls in the call log. If it is important for you to keep a record of all incoming calls, use the method instead โ3 (Annex "Safety").
7 Problems and Solutions: Why the Lockdown Doesn't Work
Sometimes even after you set up all the filters, spam calls continue to pass, and letโs look at the typical causes and ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| Calls from blocked numbers are going through | Number saved in contact | Delete the contact or add it to the blacklist through the Phone app |
| Hidden numbers are not blocked | Security settings disabled | Enable Lock Hidden Numbers in Settings โ Apps โ Phone โ Lock Numbers |
| Spam calls come from different numbers | Used number swapping (spoofing) | Activate the lock at the operator level (method) โ5) |
| The blocking applications are not working | No permits. | Check Settings โ Applications โ Permissions for the blocking application |
If none of these methods work, try resetting your network settings:
- Go to Settings. โ SIM-maps and mobile networks โ Resetting network settings.
- Confirm the action (this will remove saved Wi-Fi networks and passwords).
- Restart the device and set up the lock again.