How to unlock a contact on Xiaomi Redmi 6A: all the ways 2026

Why Contacts Are Blocked on Redmi 6A and What to Do About It

Contact blocking on Xiaomi Redmi 6A is a standard MIUI feature designed to protect users from spam and unwanted calls. However, sometimes the system mistakenly marks important numbers as “undesirable”, or the user accidentally blocks the desired contact. Unlike modern Xiaomi models, where unlocking is done in 2 clicks, on Redmi 6A (released in 2018), the MIUI 9/10 interface has its own features.

The main reasons for blocking contacts on this device are automatic filtering (if the number is blacklisted by the operator or MIUI), manual locking through the call menu, or sync failure with Mi Cloud. It is important to understand that Redmi 6A does not have a separate Blacklist section in the latest versions of MIUI - it has been replaced by built-in Spam Protection features. This often confuses users.

In this article, we will look at all the current ways to unlock contacts on the Redmi 6A in 2026, including methods through phone settings, MIUI-account and third-party applications.

Method 1: Unlocking through the call log

The fastest method is to use a built-in call log, which works on all versions of MIUI installed on the Redmi 6A, but requires that the blocked contact at least once tried to call you (or you tried to call him).

1. Open the Phone app (the tube icon on the home screen).
2. Go to the magazine tab (watch icon in the bottom menu).
3. Find a blocked number in the list - it will be highlighted with a red exclamation point or the inscription "Blocked".
4. Slip the number, then press. ⋮ → Unblock (or Remove from the blacklist) MIUI 9).

If the number doesn't show up in the log, try calling your Redmi 6A from it, and then it will appear in the list with a lock mark, which does not require an Internet connection and works even without a Mi Account account.

⚠️ Attention: On firmware MIUI 11+ After unlocking, you may need to restart your phone to make the changes take effect. If the number remains locked, check the spam filter settings (see Method 2).

Check if the number is in the call log.

Make sure your phone is not in "Do Not Disturb" mode.

Disable VPN (may interfere with the work of the spam filter)

Restart your phone if the number does not appear-->

Method 2: Spam filter settings in MIUI

Starting with MIUI 10, Xiaomi integrated spam filtering directly into the Phone system app. On Redmi 6A, this section can be hidden — its location depends on the firmware version.

1. Open the phone. → ⋮ (three-point) → Settings.
2. Select Blocking and Spam (or Blacklist in MIUI 9).
3. Check the tabs: Spam -- there may be numbers that are automatically locked by the system. Blacklist is manually blocked by the user.

Find the number you want and swipe it to the left (or click Delete).

If your contact is not on the list, but calls are blocked anyway, check:

• 🔹 Automatic filtering: in the same settings, disable the option “Filter spam calls».
• 🔹 Sync with Mi Cloud: Sometimes the lock is duplicated in the cloud (see Method 4).
• 🔹 Third-party apps: Antiviruses like Avast or Clean Master can have their own blacklists.

Method 3: Unlocking through Google Contacts

If a blocked number is linked to a Google account (e.g. synced through Google Contacts), it can be unlocked via a web interface.

• 📱 The number is blocked at the Google account level, not the Google account. MIUI.
• 🔄 Contact synchronization is included in the phone settings.
• 🌐 You have access to a computer or other device.

Instructions:

1. Go to contacts.google.com and log in with the same account as Redmi 6A.
2. Find the blocked contact in the list.
3. Open his card and check the section Additional → Lock. If you have the option "Unblock" - click it.
4. Wait 5-10 minutes and sync contacts on your phone: Settings → Accounts → Google → Sync.

⚠️ Attention: Google Contacts locks on all devices where you are logged in to this account. 6A Failure to check settings on other gadgets (tablet, second phone).

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If the number does not appear in Google Contacts but is on your phone, export the contacts to the file. VCF via Contact → ⋮ → Contact management → Export, then import back.This often dumps hidden locks.

Method 4: Sync with Mi Cloud and reset locks

On Redmi 6A with Mi Account tied, contact locks can be duplicated in the Mi Cloud, which means that even after local unlocking, the number can be blacklisted again after synchronization.

1. Open the Settings. → Accounts. → Mi Account.
2. Select Mi Cloud → Sync and turn off the Contacts option (if enabled).
3. Go back to Settings → Applications → Application Management.
4. Find Mi Cloud, click Storage → Clear Data.
5. Reboot your phone and re-unblock through the call log (Method 1).

If the problem persists, check the cloud blacklist:

• 🖥️ Go to i.mi.com from your computer.
• 🔍 Go to the Devices. → Blacklist (a section may be called Security).
• 🗑️ Remove the number from the list and wait for synchronization (up to 1 hour).

Method 5: Third-Party Applications for Lock Management

If the system methods didn't work, you can use third-party utilities. - For Redmi 6A fit:

• 📱 Truecaller: Detects spam numbers and manages blacklists. Open Truecaller after installation → ⋮ → Lockdown → Blacklist.
• 🛡️ Blacklist Plus is a specialised application for blocking/unlocking contacts.
• 🔧 Call Blocker – a simple tool with the ability to export / import lock lists.

Warnings when using third-party applications:

⚠️ Note: Some antiviruses (such as Dr.Web) conflict with Truecaller and may reset lock settings. Android.permission.WRITE_CALL_LOG, Only install it from Google Play. Once you remove the third-party blocker, check the system settings, sometimes they forget to unlock numbers.

To unlock the number through Truecaller:

1. Install the application and allow access to contacts/login.
2. Go to the Blocking tab (shield icon).
3. Find the number in the list and swipe it left or click Unblock.
4. Turn off automatic locking in the application settings.

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Third-party apps are useful if system methods don't work, but they can conflict with MIUI. Always check permissions before installing and read reviews about compatibility with Redmi 6A.

What to do if nothing helps: resetting and alternative methods

If all of these methods do not work, the problem may lie in:

• 🔄 Contact database failure (solved by resetting the Contacts application).
• 📱 Damage to system files (reflashing required).
• 🔒 Operator restrictions (some mobile operators block numbers at the level of the mobile operator) SIM-map).

Resetting the Contacts app:

1. Go to Settings → Applications → Application Management → Contacts.
2. Click Warehouse → Clear the data and Clear the cache.
3. Warning: This will remove all unsynchronized contacts!

Checking the lock by the operator:

• 📞 Call the operator (for example, at *111# for MTS or *555# for Beeline) and request a list of blocked numbers.
• 🔄 Put it in. SIM-card to another phone and check if calls are coming from a locked number.

If the problem is firmware, consider updating MIUI via Settings → About Phone → System Update. Redmi 6A 2026 current version is MIUI 12.5 (Android 9).

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Before resetting the Contacts app data, export it to a file VCF or synchronize with Google/Mi After cleaning, import contacts back through Contacts. → ⋮ → Contact management → Imports.

FAQ: Frequent questions about unlocking contacts on Redmi 6A