How to block contact on Xiaomi phone: all the ways (including hidden)

Unsolicited calls from intrusive salespeople, former colleagues, or casual subscribers can be a serious mood-damaging experience. On Xiaomi smartphones (including Redmi and POCO), contact locking is flexible, but itโ€™s not always obvious where to look for the right settings. In this article, weโ€™ll look at all the current ways, from standard MIUI features to hidden features that are not mentioned in the official documentation.

It's important to understand that the lock on Xiaomi works in a complex way, it cuts off not only calls, but also calls. SMS, And in some cases, even notifications from messengers (if the contact is synchronized with a Google account), and the blocked subscriber will not receive any notification of your actions, everything happens without being noticed by him. SIM-cards, you can configure the lock selectively for each of them.

Method 1: Lock through the call log (fastest)

This method is suitable when you need to urgently lock the number after an incoming call, the entire process takes no more than 10 seconds:

  1. Open the Phone app (the tube icon on the home screen).
  2. Go to the Journal tab (in the lower menu).
  3. Find the number you want to block in the list and tap it.
  4. In the contact card that opens, click on three vertical points (โ‹ฎ) top-right.
  5. Select the Block Number and confirm the action.

After that, all calls and SMS from this number will be automatically ignored, a feature of MIUI: if the contact is saved in the phone book, its name in the call log will be highlighted in gray - so the system notes the blocked records.

The number disappeared from the main contact list (if it was saved)|In the call log next to the number appeared the lock icon (๐Ÿšซ)|When a test call from a locked number, the phone does not vibrate or make sounds.-->

Method 2: Through Contact Settings in the Phone Book

If the number is already saved in your contacts, you can configure the lock directly from the Contacts app, which is convenient because you can add the blocked number to the blacklist with the possibility of further management:

  • ๐Ÿ“ฑ Open the Contacts app (an icon with a personโ€™s silhouette).
  • ๐Ÿ” Find the right contact through search or scroll through the list manually.
  • ๐Ÿ“ Slip on the contact to open his card.
  • โ‹ฎ Click on the three dots in the upper right corner and select Lock.
  • โœ… Confirm the action in the window that appears.

Unlike blocking through a call log, here you can add a comment to a blocked contact (e.g., "Bank Spam" or "Former Colleague"). This will help you remember later why the number was blocked. MIUI 14/15 also has the ability to unlock for a while - useful if you need to temporarily allow calls (e.g., during important negotiations).

Once a week.|Once a month|Only in emergency cases.|Never blocked.-->

Method 3: Manually Adding to the Blacklist

If you want to block a number that hasn't been called or saved in contacts, or if you want to add multiple numbers en masse, use a built-in blacklist.

  1. Launch the Security app (the shield icon).
  2. Go to the section "Block numbers" (may be in the submenu "Privacy Protection").
  3. Add to the blacklist.
  4. Select the source: ๐Ÿ“ž From the call log - to block numbers that have already called. ๐Ÿ“‡ From contacts - to block saved numbers. โž• Add manually to enter the number yourself.

Ready.

In this section, you can also configure locking rules for unknown numbers or numbers with certain prefixes (for example, all numbers starting with +375 to block calls from Belarus), which is especially important for combating spam calls from scammers.

What to do if the lock is not working?
If the blocked number still passes, check: 1. SIM: It's possible that the lock is set to only one card. โ†’ SIM-maps and mobile networks โ†’ Block calls and set up rules for each SIM 2. Update. MIUI: in older versions (below) MIUI 12) the lock may have reset after the restart. Update the firmware through Settings โ†’ The phone. โ†’ System Update 3 Third-party messengers: locking in the standard "Phone" application does not apply to WhatsApp, Telegram or Viber.

Method 4: Blocking through settings SIM-Cards (for dual smartphones)

If your Xiaomi supports two of your SIM-Cards (as in the Redmi Note 12 Pro models)+ or POCO F5), The standard lock through contacts or call logs may not work properly, in which case it is better to use the settings of the phone itself. SIM-map:

  1. Open the settings (cog icon).
  2. Move to the SIM-maps and mobile networks.
  3. Choose. SIM-The card you want to set up the lock for (SIM 1 SIM 2).
  4. Slip the call lock.
  5. Add numbers manually or select from the log/contacts.
  6. Activate the option to Block Unknown Numbers if you want to cut off all calls from undefined numbers.
  7. ๐Ÿ“‡ Through contacts: Open the blocked contact. Press โ‹ฎ โ†’ Unlock.

If the number was blocked through the settings SIM-maps, unlocking is done in the same place: Settings โ†’ SIM-maps and mobile networks โ†’ Locking calls, unlocking all missed calls and SMS They are not restored, they cannot be viewed even through the magazine.

๐Ÿ’ก

To avoid accidentally unlocking important numbers, enable action confirmation in the security settings (Security โ†’ Settings โ†’ Confirmation when unlocked).

Frequent problems and their solutions

Even in the latest versions of MIUI, users are experiencing room locking bugs, and here are the most common situations and ways to fix them:

โš ๏ธ Warning: If the number still passes after locking, check if there is an app on the phone to record calls (such as Cube Call Recorder). MIUI. Disable or remove such programs.

Problem.Reason.Decision
The lock is reset after rebootingMistake in MIUI 12 and belowUpdate your firmware to MIUI 14/15 or use third-party apps
No locks on +7 numbersConflict of number formatsAdd the number manually in an international format (e.g. +79123456789)
Notifications for blocked calls are not workingSecurity alerts disabledEnable Security โ†’ Settings โ†’ Notifications about blocking
Blocking does not work for WhatsAppWhatsApp uses the Internet, not SIMBlock your contact on WhatsApp (Chat) โ†’ โ‹ฎ โ†’ Block it)

If none of the methods helped, reset the settings of the phone application:

Settings โ†’ Applications โ†’ Application Management โ†’ Phone โ†’ Memory โ†’ Clear data

This will remove the entire call history, but restore the factory lock settings.

Can I block the number so that he doesnโ€™t know?
Yes, Xiaomi lock works โ€œquietlyโ€: a blocked subscriber will hear long horns (as if the phone is turned off) or immediately gets to voice mail (depending on the operatorโ€™s settings).
How to block all unknown numbers?
Go to Settings. โ†’ SIM-maps and mobile networks โ†’ Block calls and activate the Block Unknown Numbers option, note that you will not be called from taxis or delivery services after that unless their numbers are saved in contacts.
Will the lock work if I change it? SIM-map?
No, the lock is tied to a specific SIM-If you change the number or operator, all lock settings will reset. To save the blacklist, export it through the Truecaller app or manually write down the numbers.
Can I block the number for a certain time?
In standard MIUI settings, this feature is not available, but it is supported by third-party applications (for example, Call Blocker), where you can set a schedule, for example, block calls from 23:00 to 8:00.
Why does a blocked contact still text me on WhatsApp?
The lock through the standard settings of the phone only applies to calls and SMS. For instant messengers (WhatsApp, Telegram, Viber), you need to set the lock separately within each application. โ†’ โ‹ฎ โ†’ More. โ†’ Block it.