How to permanently block a phone number on a ZTE Blade: from standard settings to hidden functions

Smartphones ZTE Blade - a popular line of budget and mid-budget devices on Android, but their standard number blocking tools often go unnoticed. If you are bothered by spam calls, annoying debt collectors, or simply want to limit communication with a specific subscriber, these instructions will help you do it quickly and reliably. Unlike iPhone or flagship Samsung, the interface ZTE has its own characteristics, especially in firmware based on Android 10–12.

We will consider not only the obvious methods through the phone menu, but also alternative methods: from using third-party applications to hidden operator functions. Important: some options may Do not work on ZTE Blade models with custom firmware (for example, from Russian operators). If your smartphone was released before 2020, check that the interface is up to date - the manufacturer sometimes changes the location of menu items in updates.

Before you begin, make sure that you have a backup copy of your contacts. Blocking through some methods (for example, through a SIM card) can lead to data loss if you make a mistake with the command. Also remember: blocked numbers can sometimes still leave voice messages or send SMS - this depends on your operator's settings.

1. Standard blocking via the “Phone” menu

The easiest way is to use the built-in tools Android on ZTE Blade. This method works on most models, including Blade A7, Blade V40, Blade 20 Pro and others with a clean or slightly modified interface. The main advantage: there is no need to install additional apps, and the blocking operates at the system level.

Instructions:

• 📱 Open the application Phone (handset icon on the main screen).
• 🔍 Go to tab Journal (or Recent).
• 👆 Click on the number you want to block and hold it for 1-2 seconds.
• ⚙️ In the menu that appears select Block number (or Block/Report spam).
• ✅ Confirm the action in the dialog box.

If there is no item Block number This means that your model ZTE Blade uses the shell from the operator (for example, MTS, Beeline, Tele2). In this case, try an alternative way:

1. Open Settings → Applications → Phone → Permissions.
2. Make sure that the application has access to Contacts and Call Log.
3. Go back to the call log and try again.

Save the number to contacts (if necessary)

Made sure that this is not an important call (bank, support service)

Checked the balance (some operators block SMS notifications)

Write down the number on paper (in case of unblocking)

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⚠️ Attention: On some firmware ZTE Blade blocked numbers are automatically deleted from the call log If you need to save the history (for example, for evidence in court or a complaint to the operator), take screenshots Journal in advance.

2. Blocking through Android settings (for all ZTE models)

If the standard method did not work or you need to block a number that has not called yet, use system settings. This method is universal for everyone. ZTE Blade on Android 9–12, but may differ slightly depending on the shell version.

Step-by-step guide:

1. Open Settings (gear on the main screen or in the application menu).
2. Go to section Applications and notifications (or simply Applications).
3. Find and select the application Phone (maybe be called Calls or Numbers).
4. Tap on Blocking numbers (or Spam and blocking).
5. Click Add number and enter it manually or select from contacts.

On some models ZTE Blade (for example, Blade A31 or Blade L9) the path may be different:

Settings → System → Advanced → Call blocking

🔹 Nuance: Unlike Samsung or Xiaomi, ZTE does not always save blocked numbers after resetting the settings. If you plan to reset the phone, export the list of blocked contacts in advance through the Contacts application. (section Import/Export).

3. Blocking via SIM card (USSD commands)

If system methods do not work. work or you want to block a number at the operator level, use USSD commands. This method is suitable for everyone ZTE Blade, but requires knowledge of the specific codes of your mobile operator. Advantage: the blocking will work even if you change your phone or reset your settings.

Instructions:

• 📞 Open application Phone and go to the tab Dialing.
• 🔢 Enter the USSD command for your operator (see table below).
• 📝 Follow the instructions in the response from the system (usually you need to enter the number to block).
• ✅ Confirm the action.

Operator	USSD command for blocking	Notes
MTS	*111*121#	After the call, follow the voice prompts
Beeline	*110*789#	SMS confirmation required
MegaFon	*130#	Select "Black List"
Tele2	*220*1#	Works only for postpaid tariffs
Yota	*100*1#	The blocking is valid for 30 days

⚠️ Attention: For some operators, blocking via USSD is paid (for example, MegaFon can charge up to 3 rubles per number). Check the tariffs on the official website or by number 0500 (for all operators). Also remember that blocking at the SIM card level does not apply to calls via VoIP (WhatsApp, Viber, Telegram).

What to do if the USSD command is not available is it working?

If after typing the command you see the message "Service is unavailable", check:

1. Do you have the Antispam package activated (on some tariffs, blocking is only enabled with it).

2. Whether the limit of blocked numbers has been exceeded (usually 10–20). pieces).

3. Is the SIM card version current (old Mini-SIM cards may not support this function).

4. Using third-party applications

If the built-in tools ZTE Blade do not suit you, install a specialized application for blocking calls. This method. suitable for users who need advanced blacklist management, a log of blocked calls or automatic spam filtering.

Top 3 applications for ZTE Blade:

• 🛡️ Truecaller - identifies spam numbers in the database, blocks SMS and calls. Minus: requires registration and access to contacts.
• 🔒 Blacklist Plus - simple blocker with the ability to configure time exceptions. (for example, block only at night).
• 📵 Call Blocker — supports blocking by keywords in the name (for example, "Credit", "MFO").

How to install and configure:

1. Download the application from Google Play (for example, Truecaller).
2. Grant the necessary permissions (access to Call log, Contacts, SMS).
3. Add numbers to the black list manually or activate automatic spam blocking.
4. In the application settings, enable the option Block hidden numbers (if needed).

⚠️ Attention: Call blocking applications may conflict with system settings ZTE Blade. If after installation the standard phone functions (for example, caller ID) stop working, disable the application or reset its settings.

5. Blocking through an operator (personal account)

If you want to block a number forever and on all devices, use the tools of your mobile operator. This method is suitable for dealing with scammers or debt collectors who call from different numbers. The blocking operates at the network level, so it will work even if you change ZTE Blade to another phone.

Instructions for popular operators:

• 🌐 MTS: Go to personal account, section Services → Security → Blacklist.
• 🌐 Beeline: In the menu My services → Antispam add the number manually.
• 🌐 MegaFon: Go to Service management → Call blocking.
• 🌐 Tele2: In the section My settings → Spam protection.

🔹 Important: For some operators (for example, Yota or Tinkoff Mobile), blocking through your personal account is available only for postpaid tariffs. If you have prepaid, use USSD commands or contact support by number 500 (for Tele2) or 0500 (universal number for all operators).

📌 Advice: If a scammer calls who introduces himself as a bank employee, immediately block the number through the operator and file a complaint on the website Bank of Russia. In the description, indicate that the call came to ZTE Blade with an IMEI number (you can find it in Settings → About phone).

6. Hidden functions: blocking through the engineering menu

On some models ZTE Blade (for example, Blade V30 or Blade A51) there is a hidden engineering menu through which you can block numbers at a low level of the system. This method is suitable for experienced users, since incorrect actions can disrupt operation. phone.

Instructions:

1. Open the application Phone and enter the code:

   ##4636##

2. In the menu that appears, select Phone information (or Phone Information).
3. Scroll down to the section Call blocking (may be called Call Blocking).
4. Add a number manually or select from log.
5. Save the changes and reboot the phone.

⚠️ Attention: The engineering menu is intended for testing and debugging. Do not change other parameters (for example, Radio Information or Battery Information) if you are not sure of their purpose. data-i="233">or loss of network or low battery.

What to do if the engineering menu does not open?

If after entering the code nothing happens happens:

1. Check if the developer mode is disabled (turned on at Settings → About phone → Build number - tap 7 times).

2. Try an alternative code: #15963# (for some firmware ZTE).

3. Update the phone firmware to the latest version (in Settings → System → Software update).

7. Alternative methods: blocking via Google Contacts

If you synchronize contacts with your account Google, you can block a number via the web version. Google ContactsThis method is convenient if you have several devices (for example, ZTE Blade and a tablet) and you want the blocking to apply everywhere.

Step-by-step guide:

1. Open the website on your computer or phone Google Contacts.
2. Login using the same account as on ZTE Blade.
3. Find the contact you want to block (or create a new one with the desired number).
4. Open the contact card and click More → Block number.
5. Confirm the action.

🔹 Features method:

• Blocking only applies to devices where synchronization with Google.
• Numbers blocked via Google Contactsare not displayed in the standard black list ZTE Blade.
• If you delete contact from Google, the blocking will be removed automatically.

⚠️ Attention: If synchronization with ZTE Blade (for example, due to saving traffic), the blocking will not work. To enable it, go to Google is disabled on your Settings → Accounts → Google → Contact synchronization.

FAQ: Frequently asked questions about blocking numbers on ZTE Blade

🔹 Is it possible to block a number so that it cannot leave voicemails messages?

Standard tools ZTE Blade block only calls, but not voice mail. To completely cut off a subscriber, use blocking at the operator level (via USSD or personal account) or install an application Truecaller with a voice message filtering option.

🔹 Why does a blocked number still call?

This can happen for several reasons:

• The subscriber uses Caller ID substitution (calling from a hidden or another number).
• You blocked the number only in the application, but not at the operator level.
• Your firmware has a bug installed (try updating the software). ZTE Blade The firmware is installed with a bug (try updating the software).

Solution: check the call log for other numbers from this subscriber and block them all. Also install an application Call Blocker with the function of blocking number ranges.

🔹 How to unblock a number on ZTE Blade?

To remove a number from the blacklist:

1. Open Settings → Applications → Phone → Blocking numbers.
2. Find the number in the list and tap on the trash icon or Delete.
3. Confirm the action.

If the number was blocked through an operator, unblock it in your personal account or using a USSD command (for example, for MTS — *111*122#).

🔹 Is it possible to block all incoming calls except selected ones?

Yes, but not through the standard settings ZTE BladeInstall the application Blacklist Plus and activate the mode White list:

1. Add contacts from whom you want to receive calls to your favorites.
2. In the application settings, select White list mode.
3. Activate the option Block all others.

⚠️ In this mode, you will not receive calls even from unknown numbers (for example, from a bank or delivery service), so use it carefully.

🔹 Will blocking work if I change the SIM card?

Depends on the method blocking:

• If the number is blocked via phone settings or Google Contacts —yes, the blocking will remain.
• If via USSD command or operator’s personal account —no, you will have to configure it again.