Owners of Xiaomi, Redmi and Poco smartphones often face a situation where an important call does not come due to built-in security mechanisms. Antispam is a useful feature, but sometimes it works too aggressively, blocking the numbers of couriers, banks or colleagues. Understanding how to correctly manage these settings allows you to maintain a balance between silence and availability.
The MIUI Operating Shell and the new HyperOS have deeply integrated filtering tools that can hide notifications or completely break a connection. In this article, we will detail all possible ways to disable protection from unwanted calls. You will learn how to configure the Blacklist, manage the spam database and adjust the settings of the Security application.
Sometimes the problem is not with the settings of the smartphone itself, but with the services of the mobile operator or third-party applications. Disabling the system blocker does not guarantee full availability if the number is entered in the carrier database, so a comprehensive approach to solving the issue is the only sure way for users waiting for critical calls.
Managing the built-in blocker in the Security application
The main security tool in the Xiaomi ecosystem is the system application Security, which is where the main levers of incoming traffic are concentrated. To get to the desired menu, you need to run the application with a green shield icon and find the Lock section. In some versions of the firmware, it can be called Antispam or have a ban icon.
Inside the lock menu is a switch that activates the function, and if the slider is green, it means that the filtering is active, and if you click on the gear icon in the corner of the screen, you'll be in advanced settings, you can turn off SMS and MMS, and you can also block incoming calls completely, and that will give the phone the ability to accept any connections, regardless of their source.
It's worth noting that disabling global protection can lead to more advertising calls. MIUI uses cloud databases to identify fraudsters, and dropping this feature removes this barrier. However, for those waiting for a call from an unknown number right now, this is a temporary and necessary solution.
- 📱 Open the Security app on the home screen.
- ⚙️ Go to the Lock section and click on the settings gear.
- 🔌 Turn off the switches "Block Calls" and "Block Calls" SMS».
- ✅ Check that the status has changed to “off».
☑️ Checking the lock settings
Set up a blacklist and exceptions
Users often confuse global antispam with a personalized blacklist, which can be automatically entered after you have dropped a call or marked the contact as spam, and check this list is a mandatory diagnostic step. Go to the lock settings and select the Blacklist. If the number you want is there, just delete it or move it to the Whitelist.
Whitelisting allows you to create a list of contacts that will always be called, even if you have Do Not Disturb mode or strict spam filtering, which is ideal for those who want to leave advertising protection, but do not risk missing a call from loved ones. Add important numbers to exceptions, and HyperOS will stop filtering them.
There is also a Contact Only mode, which often turns on randomly, in which the phone ignores everyone not in your phone book. Make sure the locking rules settings select "Do not block" or "Block only tagged numbers" rather than "Block all unknowns."
⚠️ Warning: After updating the firmware, the blacklist settings may reset or change. Always check the validity of the filtering rules after installing the new version. MIUI.
You can also manage lists through the standard Phone app. Click three dots in the corner, select Settings -> Lock. This duplicates the basic functions, allowing you to quickly add a number to the ignorant without going into the deep security menus.
Disabling filtering in the application Phone Google
On global versions of smartphones, Xiaomi often preinstalled a dialer from Google, which has its own security mechanism called Call Filter.It works independently of the system blocker MIUI. To turn it off, open the Phone app, click on three dots and go to Settings. Find the item "Number Definer and spam".
In the menu that opens, you'll see a "Filter spam calls" switch that will prevent the Google app from analyzing incoming connections and marking them in red as dangerous, and you can also turn off the display of identified spammers, which will remove the "Probable spam" label on the screen during the call.
It is important to understand the difference between a system blocker and a Google module. Google Dialer relies on the reputation of a number in a global search engine database, while MIUI Security uses its own algorithms and user complaints in China and other regions. Disabling one does not deactivate the other.
| Function | Wherever | What's he doing? |
|---|---|---|
| Block MIUI | Security Annex | Blocks calls and SMS at the system level |
| Google Filter | Settings of the application Phone | Tags and rejects spam on Google database |
| Blacklist | Both systems | Blocks specific selected numbers |
Do Not Disturb Mode and Its Impact on Calls
One of the most common causes of "missing" calls is the activated Do Not Disturb mode. Unlike the blacklist, this mode does not block the call technically, but simply prevents the phone from making sound and vibrating. The screen may not even light up, creating the illusion that no one called.
You can check the status of this mode in the notification curtain. If the crescent icon is illuminated, the mode is active. Click on it to turn it off. For a more subtle setting, go to Settings -> Sound and vibration -> Do not disturb. Here you can set a schedule so that the phone does not remain silent during business hours.
There is an important subsection in the Do Not Disturb mode settings, "Allow Calls," make sure it selects "From All" or "From Favorite Contacts" if you want to hear a specific group of people. If it's "from Nobody," the phone will ignore all subscribers except for repeat calls (if this option is enabled).
What are re-challenges?
Third-party applications and operator services
If Xiaomi’s system settings are checked and disabled, but calls still don’t go through, it could be a third-party application, such as Truecaller, Getcontact, or antivirus (Kaspersky, Dr.Web) have their own blockers, which require call management rights and can intercept the connection before the system dialer.
In addition, many telecom operators (MTS, Beeline, MegaFon, Tele2) They provide network-level antispam services, in which case the call is interrupted before it reaches your smartphone. USSD-request to disable paid or free protections.
To remove the third-party blocker:
- 📲 Go to Settings -> Annexes.
- 🔍 Find a suspicious app (such as a caller) ID).
- 🚫 Click on “Permissions” and turn off access to the phone».
- 🗑️ Remove the app completely if you don’t need it.
⚠️ Warning: Third-party number detectors often transfer your phone book to their servers, and disabling such applications is not only a way to return calls, but also a step towards increasing privacy.
Additional settings and resetting parameters
In rare cases, resetting your network settings helps. It won't delete your photos or contacts, but it will return your mobile settings to factory values. Go to Settings -> Connection and Sharing -> Reset Wi-Fi, mobile networks and Bluetooth. Once rebooted, the phone will re-register on the operator's network, which can eliminate call routing errors.
Also worth checking is not turned on redirects. By dialing the code #002# and call, you can disable all types of redirects installed on the redirector. SIM-Sometimes users accidentally activate a forwarding to voicemail or another number, thinking they are setting up anti-spam.
If nothing helps, it may be a problem with a particular contact, so try to remove the contact and save it again, maybe there's an extra symbol or space in the room that the system perceives as a format error.
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Before resetting your network settings, write down the Wi-Fi network passwords as they will be deleted from your phone’s memory.
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A comprehensive check of the system blocker, Google Dialer settings and operator services solves 99% of the problems with missed calls on Xiaomi.