Xiaomi’s modern smartphones are equipped with powerful spam and unwanted contact protection tools that can be set too aggressive by default. Users often face a situation where important calls from doctors, couriers or colleagues simply do not arrive on the device, leaving them unnoticed in the call history.
Every smartphone owner of this brand needs to understand how to disable the call lock on Xiaomi, so as not to miss critical information. MIUI or its new version of HyperOS has deep integration of security services, which makes the setup process flexible, but sometimes confusing for the inexperienced user. We will look at all possible reasons for blocking, from a simple blacklist to the limitations of the carrier.
Restoring the normal operation of telephony requires a consistent approach and checking several levels of settings. First, make sure that the number is not in the blacklist of the device itself, then check the antivirus settings and finally contact the carrier if the problem is not solved by software methods.
Checking and cleaning the blacklist in the Security app
The first and most likely source of the problem is the built-in Antispam module, which is part of the system's Security app, which stores a database of numbers that your phone has limited access to, often adding contacts to it in a fit of emotion or accidentally, forgetting about it after a while.
To access the settings, you need to run the standard Security app with a green shield on the icon. In the menu that opens, you should find the Antispam section (usually located in the toolbox or at the bottom of the screen), Here you can see the statistics of blocked calls and SMS, and a list management button is available.
Inside the Blacklist section, you'll see a list of all the numbers that have been locked by the system or added by you manually. If you're looking for a way to unlock a number on Xiaomi, click on a specific contact and select the option to remove from the list or completely remove restrictions.
⚠️ Attention: Deleting a number from the blacklist does not return missed calls that came during the lockdown period.
Configure protection levels and filters in MIUI
MIUI allows you to flexibly configure the rules for filtering incoming connections, and if the standard blacklist is clean but calls still don't go through, the problem may lie in active filters, which can block calls from hidden numbers, foreign codes, or even all the numbers that aren't in your phone book.
To check these options, go to your smartphone's Settings menu, then select the App and find Phone. In some versions of the firmware, lock settings are placed in a separate menu within the Security -> Antispam -> Settings (cog icon).
In the filter menu, you can activate or deactivate the following options:
- 🚫 Blocking Hidden Numbers – Bans Calls to Those Who Hide Their Numbers ID caller.
- 🌍 Blocking international calls is good for saving money, but can block a call from another country.
- 📒 Blocking all but contacts – “Only your own” mode, in which only those who are recorded in the phone book call.
Make sure that none of these switches are activated if you are expecting calls from a wide range of people, and check the Lock Notice settings. If you turn on the Notify of blocked calls option, the phone will vibrate or show a pop-up when you try to communicate from a locked number, which will allow you to react quickly to the situation.
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If you have enabled Do Not Disturb mode, calls from your favorite contacts may still pass. Check the settings in the notification curtain for this mode.
Third-party applications and program conflicts
Often, third-party applications installed by the user are the reason that incoming calls to Xiaomi are not being passed, such as number detectors, various cleaners, or antiviruses from other manufacturers that intercept call management, and these programs have a higher priority for processing the call than system settings.
If you see programs like Truecaller, GetContact, Call Blocker, or antiviruses from Kaspersky, Dr.Web, ESET, check their internal settings, perhaps they include Quiet Hour or aggressive spam protection, and in some cases, removing it completely helps.
Also, look at the permissions that are given to the apps. Go to Settings -> Apps -> All Apps. Find a suspicious app, click on it and select Permissions. Make sure it has (or conversely, disqualify) the right to Calls and Contacts. Sometimes resetting permissions to factory values helps resolve software conflict.
| Type of application | Possible reason for blocking | Decision |
|---|---|---|
| Number-defining | Spam number database | Disable in the application settings |
| Antivirus | Protection against fraudsters | Check quarantine |
| Parental control | Limitation of social circles | Enter the parent's password |
| Call manager | Conflict with the systemic | Delete the appendix |
What is conflict SIM-map?
Locking at the level SIM-card-and-operator
If software methods fail, the problem may be outside your smartphone.Telecommunication operators provide network-level blocking services, meaning that the call is cut off before the signal reaches your Xiaomi.
The most common service is the Anti-Determinator service, or the operator's Blacklist, which can be paid or free, connected by mistake or as part of a promotion. USSD-commands or personal application of your operator (MTS, Beeline, MegaFon, Tele2).
You should also check the forwarding settings, and if the phone has all the calls forwarded to another number or voicemail, you won't hear the beeps, and you can use a universal command to reset all the redirects.
##002#Type this code into the Phone app and press the call button, and the system will respond with a message that it has successfully reset the redirect, and it's safe and it doesn't take the balance, it just returns the call routing settings to the standard.
⚠️ Note: Before resetting your network settings, make sure you have access to voice mail if you use this service, as the ##002# command can disable forwarding to it.
System restrictions and "Do Not Disturb" mode
Android and MIUI have a Do Not Disturb (DND) mode, which when activated, can keep the phone silent and vibrate when incoming calls, creating the illusion of locking. The screen may not even light up.
You can check the status of this mode by lowering the notification curtain. If the icon of the moon or crossed-out circle is active, turn it off. A more subtle setting is in the Settings menu -> Sound and vibration -> Do not disturb. Here you can configure exceptions, for example, allow calls from favorite contacts or repeated calls (if the same number rings a second time within 3 minutes).
Another reason may be background activity limitations. The system can "kill" the telephony process to save energy if the hard power saving mode is on. Go to Settings -> Battery and make sure that the Power Saving mode is off or set to "No restrictions" for the Phone application.
☑️ Checking the “Do not disturb” regime"
Resetting call settings and network settings
When none of the above methods worked, and the question of “how to unblock calls to shaomi” remains relevant, it is worth resorting to radical but effective measures: resetting network settings and calls will return all phone parameters to factory values, eliminating hidden software errors.
It is important to understand that this step will not delete your personal files, photos or contacts, but will reset your Wi-Fi, Bluetooth and mobile network settings. You will have to re-enter passwords from Wi-Fi routers. To perform the reset, go to Settings -> About Phone (or Advanced Settings) -> Reset Settings -> Reset your Wi-Fi, mobile internet and Bluetooth settings.
If the problem persists even after the reset, it may be that the profile is damaged. SIM-Try to remove the tray, wipe the contacts. SIM-If you want to re-paint your card with a soft cloth, please contact the operator's office to replace it. SIM-New card with the number saved.
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Comprehensive checks of all levels – from blacklist to operator settings – ensure 99% of the problems with blocking calls are solved.