Blocked an important number by mistake or changed your mind about ignoring the person? You can get a blacklisted contact back on Android in a few minutes - even if you don't remember exactly how you added it there. In this article, we will look at all the unlocking methods for the standard “Phone” application, as well as popular instant messengers like WhatsApp and Telegram.

The main rule: black list is not permanent deletion. All contact data (name, number, call history) is saved, just temporarily hidden from incoming calls and messages. We will show you how to unblock on different versions Android (from Android 10 to Android 14), as well as what to do if the standard settings do not work.

Spoiler: in 90% of cases it is enough to go to the settings phone number and uncheck the box next to the number. But there are also hidden nuances - for example synchronizing the black list with a Google account or features of working on Xiaomi, Samsung i Huawei. First things first.

📊 What smartphone do you have?
Samsung
Xiaomi
Huawei
Google Pixel
Another brand

1. Standard method: through phone settings

The most universal method is to use the built-in “Phone” application (Google Phone or a proprietary one from the manufacturer). The instructions are suitable for most pure devices Android (Pixel, Nokia, Motorola) and many models Samsung/Xiaomi.

Action algorithm:

  • 📱 Open the application "Phone"** (handset icon on the main screen).
  • ⚙️ Click on the three dots in the upper right corner → select Settings.
  • 🔍 Scroll down to the section Blocking numbers (or Blacklist, Spam).
  • ✅ Find the blocked contact in the list and uncheck/click on the trash can.

If you have Samsung Galaxy with shell One UI, the path may differ slightly:

Phone → ⋮ (three dots) → Settings → Block numbers → Remove from list

Check that the contact is not deleted from the phone book

Make sure you have administrator rights (if the phone corporate)

Close all messengers before unlocking (they may cache old settings)

Synchronize contacts with Google (in case of failure)

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Important: On some firmware (for example, MIUI from Xiaomi) the black list can be called Spam or Unwanted. If you do not find the section, use the search in the settings (magnifying glass in the upper right corner).

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If the contact has disappeared from phone book after unlocking, check the “Archive” folder in the “Contacts” application - sometimes blocking automatically archives numbers.

2. Unlocking via Google Contacts (if synchronization is enabled)

If your phone is synchronized with Google account, blocked contacts can be duplicated in the cloud. This means that even after unlocking the number on the device, the number will remain unavailable until you correct the settings in Google Contacts.

How to check and fix:

  1. Open the browser and go to contacts.google.com (log in with the same account as on the phone).
  2. In the left menu select More → Settings → Blocked.
  3. Find the desired contact and tap Unblock.
  4. Go back to your phone and refresh your contact list (pull down in the Contacts app).

⚠️ Attention: If you delete a contact from Google Contacts during the unlocking process, it will disappear from all synced devices. It is better to first unlock and then edit if necessary.

Manufacturer Path to the black list Features
Google Pixel Phone → Settings → Blocking numbers Synchronizes with Google account
Samsung Phone → ⋮ → Settings → Blocking numbers Can block SMS separately from calls
Xiaomi Security → Blacklist Requires a password from the MI account for changes
Huawei Phone → Blacklist Blocking works even in Do Not Disturb mode

3. How to unblock a number on WhatsApp and Telegram

Messengers have their own blacklists, independent of Android system settings. If you blocked a contact directly in WhatsApp or Telegram, you need to unblock it there.

For WhatsApp:

  • 💬 Open the chat with the blocked contact (or find it through the search).
  • 🔍 Tap on the contact name at the top of the screen → scroll down.
  • 🔓 Select Unblock (if there is no button, the contact is not blocked).

For Telegram:

  • 🔍 Go to Settings → Privacy → Blacklist.
  • 👤 Find the contact in the list and swipe left (or click Delete).
  • 🔄 Refresh the list of chats - messages from the unblocked user will appear again.

⚠️ Attention: B Telegram blocking deletes all correspondence with the user. After unblocking, the history will not be restored - you will have to start the chat again.

What to do if the contact is not displayed in the messenger?

If you do not see a blocked contact in WhatsApp/Telegram, check:

1. Whether it has been deleted from the phone book (messengers hide chats with non-existent contacts).

2 Has not been changed. your interlocutor's phone number (the old number will remain blocked, but the new one will be available).

3. Are you using the business version of the messenger (in WhatsApp Business, blocking is managed separately).

4. Restoring the black list after resetting the phone

If you reset the phone to factory settings or reinstalled it firmware, the system black list will be reset. However, there is a chance to restore it through backups:

Method 1: Through Google Drive

When you first start the phone after the reset, the system will offer to restore data from Google DriveSelect the backup created by to reset. it may include blocking settings (if the “Backup application settings” option is enabled).

Method 2: Via Titanium Backup (root)

For users with root access:

  • Install Titanium Backup from Play Market.
  • Restore application data com.android.server.telecom (responsible for calls).
  • Reboot the phone.

⚠️ Attention: Restoring system settings from backup may lead to conflicts with the new version of Android. Use this method only if other methods have not helped.

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Blacklist backups are created automatically only if synchronization with Google is enabled. Check this in Settings → Accounts → Google → Contact synchronization.

5. Problems and errors when unlocking

Sometimes even after the blocking is removed, the number continues to be ignored. Let's look at typical causes and solutions:

Problem Possible cause Solution
The number is blocked again after a reboot Conflict with the blocking application (for example, Truecaller) Remove third-party blockers or add the number to their white list
SMS does not arrive, but calls go through Separate blocking of messages in the operator settings Call the operator or check your personal account (for example, My Tele2)
The contact is not displayed in the black list The number is blocked at the SIM card level Insert SIM into another phone and unlock via USSD command (for example, *111*123# for MTS)

Critical feature: On some firmware (for example, ColorOS from Oppo/Realme), the blacklist is controlled through the “Security” application, and not the “Phone” application. If standard methods do not work, look for the section Privacy protection v. settings.

6. How to check if a number is unblocked

To make sure that a contact is actually removed from the blacklist, follow these steps:

  1. Test call: Ask another phone to call from this number. If the call goes through, the blocking is removed.
  2. SMS check: Send yourself a message from a blocked number (for example, through an online service like SMS24).
  3. Call logs: In the "Phone" application, go to Log and make sure that the number is displayed without a block icon (🚫).

If the tests do not pass, check:

  • 📵 Do Not Disturb mode (may overlap incoming calls).
  • 📡 Operator settings (some tariffs block unwanted numbers automatically).
  • 🛡️ Antivirus applications (for example, Kaspersky or Avast may have their own blacklists).

7. Alternative methods: if all else fails

In rare cases, system crashes or firmware errors can make the blacklist unavailable for editing. Here's what to do:

Method 1: Reset the Phone application settings

This will delete all user settings (including history). calls), but will remove the blocking:

Settings → Applications → Phone → Storage → Reset data

Method 2: Using ADB (for advanced users)

If you have access to ADB, you can manually clear the blocking list:

adb shell content delete --uri content://call_log/calls

adb shell content delete --uri content://com.android.contacts/blocked

Method 3: Contacting the operator

If the number is blocked at the SIM card level (for example, through the "Black List" service from Beeline or MegaFon), you can only unblock it via:

  • 💻 Personal account on the operator’s website.
  • 📞 Call to support (numbers: 0611 for MTS, 500 for Yota).
  • 🏦 Sales office (take your passport).
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Before resetting the Phone application, export your call history through an application like Call Logs Backup & Restore - this will save important records.

FAQ: Frequently asked questions

Is it possible to return the history calls after unblocking?

No, the history of calls from a blocked number is not saved. However, if the contact was in the phone book, the records of missed calls themselves may remain in the log (but without the ability to listen to voicemail).

Why do not messages arrive after unblocking?

Probably, the number is blocked separately in the Messages application. Check:

  1. Open Google Messages (or standard SMS application).
  2. Go to Settings → Spam and blocking.
  3. Remove the number from the list blocked.
How to block a number so that it cannot be unblocked?

This function is not in the standard Android settings. However, you can:

  • Use third-party applications like Call Blocker with a password.
  • Block a number at the operator level (confirmation via SMS is required when unblocking).
  • Delete a contact from the phone book and add to the black list by number (without reference to the name).
What to do if the black list is empty, but the number is still blocked?

The problem may be in:

  • Operator settings: Some tariffs have built-in spam blocking (disabled via USSD or personal account).
  • Double applications: For example, Truecaller or GetContact may have their own lists blocking.
  • Do not disturb functions: Check exceptions in Settings → Sound → Do not disturb.
Is it possible to restore black list after deleting a contact?

If you delete a contact from the phone book to unblocking, the number will remain in the black list, but without being linked to the name. To find it:

  1. Open Settings → Blocking numbers.
  2. Scroll the list - blocked numbers are displayed even without saved names.
  3. Uncheck block, then add the number back to your contacts.

If the list is empty, but you are sure that the number has been blocked, try restoring contacts from a Google backup.