Xiaomi smartphone users often face the need to limit unwanted contacts, however, sometimes the lock is by mistake or the situation changes.If you are looking for a way to remove a number from the blacklist on Xiaomi, you will need access to the system security settings of the MIUI shell or HyperOS. The unlock process does not require complex hardware, but knowing the exact path in the menu will save you time.
The built-in spam protection functionality in the brand’s phones works very aggressively and effectively, sometimes leading to false blocking of important calls. A blacklist is not just about no horns, it is a system ban on incoming traffic from a specific identifier. Reconnection requires manual intervention in the call filtering settings.
This guide covers all current firmware versions, including the latest interface updates. We will break down standard methods through the contact menu and deeper security settings. It is important to understand that the location of items may vary slightly depending on the version of Android, but the logic of the system remains the same for all devices of the brand.
Standard method through the Contacts app
The fastest way to block (unblock) a subscriber is to use a standard call app that is pre-installed in the factory, which is suitable for most situations where a number has been added to the stop list manually or automatically after complaints of spam. You don't have to search for hidden menus, just open the dialing interface.
Click on the phone handset icon and go to the settings menu, which is usually hidden under three dots or a gear in the corner of the screen. In the list that opens, select Lock Settings or Antispam, which is where the database of prohibited contacts is stored and managed centrally.
Inside the menu, you'll see a list of all the locked numbers, find the contact you want, click on it, select the deletion or unlock option, and the system can request confirmation of action, because it's a change in the filtering rules for incoming traffic, and then the subscriber can call you again.
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Before removing a number from the blacklist, make sure you really want to resume communication, as the history of missed calls from that contact may not be saved in the log.
If the standard path doesn’t work, it’s possible that your version of the MIUI has a manufacturer-redesigned interface, and you might want to use an alternative method through a security center that has deeper filter access rights, especially for older models like the Redmi Note 9 or Xiaomi Mi 10.
Use of the Application Security
In the Xiaomi ecosystem, the system application Security plays a key role, combining antivirus, memory cleanup and, importantly for us, lock management module, and accessing this tool gives you more detailed control over who may be bothering you.
Run a green-shield app on your desktop, and in the top corner, you often have additional settings or menus where you want to find the Blacklist section, and not only do you see numbers, but you also see potential spam mailings that are blocked by the smart algorithm.
- 📱 Open the Security app on the home screen.
- 🛡️ Go to the Antispam or Blacklist section at the bottom of the menu.
- 🗑️ Click on the gear icon or menu (three dots) to manage the list.
- ✅ Select a number and click Delete or Unblock.
⚠️ Attention: Deleting the number from the blacklist in the Security app removes the lock immediately at the system level, ignoring the settings of individual SIM cards if there are two of them.
The app's functionality allows you to not just delete, but also customize rules. For example, you can create an exception for contacts from the phone book so that you don't accidentally block loved ones. Changes take effect instantly, you don't need to reboot the device. If the number was blocked by the operator at the network level, this method won't help, because it only works at the device level.
Settings for two SIM-map
Many Xiaomi users use two SIM cards at the same time, and there is frequent confusion. SIM-You need to check the settings for each slot separately, and delete the number from the list for one card will not unlock it for the second.
The lock control menu often has a switch between SIM 1 and SIM 2.Make sure you are in the correct tab before making changes.System logic MIUI Considers each SIM card as a separate channel of communication with its own filtering rules.
The unlocking process is similar to a single SIM card: go to the settings, select the desired slot, find the number and delete it. It is important to remember that some third-party calling apps can intercept control and create their own lists, ignoring system settings.
☑️ Checking the settings of two SIM
Third-party applications and conflicts
Often users install additional number detectors or antiviruses, such as Kaspersky, Dr.Web or Truecaller. These programs can create their own blacklist that runs parallel to the system. If you delete the number from your phone settings, but the calls still don't go through, the problem may be with third-party software.
You need to open the settings of the installed antivirus or number detector. In the privacy or call blocking section, check for prohibitive rules. Sometimes these applications block spam numbers automatically, without the owner's knowledge.
| Annex | Where to look for settings | Feature |
|---|---|---|
| Kaspersky | Antivirus → Call filter | It has its own spam database. |
| Truecaller | Lockdown → Blacklist | Requires access to contacts |
| Dr.Web | Anti-Character → Locker | Can block hidden numbers |
| MIUI System | Security → Antispam | It works at the core level of the system. |
To avoid conflicts, it is recommended to use only one blocking tool. If you use Xiaomi built-in tools, it is better to disable filtering functions in third-party applications so that they do not duplicate each other and do not create situations where the number cannot be unlocked.
Resetting call and network settings
In rare cases, a software failure can cause the blacklist management interface to stop responding to user actions, or the number is visually deleted, but the lock is maintained, in which case resetting network settings and calls to factory settings helps.
Go to Settings → Applications → All Apps. Find Phone (or Calls) in the list. Click on Clear and select Clear Everything. This action will reset the app's settings, including call history and lock lists, but will not delete your personal contacts if they are synced to your account.
⚠️ Warning: Resetting the Phone app will delete your call history and forwarding settings. Make sure your important numbers are saved in the cloud or on the cloud. SIM-map before performing this operation.
Once the cache and application data are cleared, the phone can restart, the first time it starts, it will need to allow access to the microphone and contacts again, and the blacklist should be cleared completely, returning to the default state, that is, to become empty.
What if the reset didn't help?
Operator-level locking
Sometimes users forget that the lock could not have been installed on the phone, but through the services of a cellular operator, services like Antispam from MTS, Beeline, Megaphone or Tele2 operate regardless of Xiaomi's settings, and even if the phone number is white, the operator can break the connection.
Check the connected paid and free services through the operator’s personal account or USSD-Often these services are activated accidentally when clicking on advertising links.
- 📞 Call a service verification command (depending on the operator).
- 🌐 Go to your personal account on the operator's website.
- 🚫 Find the "Blocking" or "Parental Control" section".
- ❌ Disable the service of blocking unwanted numbers.
The difference between a phone lock and a carrier lock is significant: a phone lock simply doesn't show an incoming call, and a carrier can stop the phone from getting a signal at all, so if the phone is clear and there are no calls, look for the reason from the provider.
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Always check both levels of protection: the settings of the smartphone itself and your mobile operator’s active services, as they work independently of each other.