How to permanently block SMS from unwanted subscribers on Xiaomi: instruction 2026

Every Xiaomi smartphone owner sooner or later faces intrusive messages from spammers, scammers or former acquaintances.According to Kaspersky Lab, in 2023 the share of the smartphone is not expected to be used. SMS-Spam in Russia increased by 37% - and the trend continues. MIUI Offers several built-in tools to combat unwanted newsletters, and third-party apps expand blocking capabilities.

In this article, we will look at 5 proven ways to weed out spam SMS on Xiaomi, Redmi and POCO devices, from basic settings to advanced solutions. You will learn how the blacklist works, why the standard spam filter sometimes doesn’t work, and which applications will help automate the process.

1. Contact blacklist: basic method of blocking

The easiest way to stop receiving messages from a specific number is to blacklist it, which works on all Xiaomi smartphones regardless of the MIUI version (12 to 14) and model (including the Redmi Note 12, POCO X5, Xiaomi 13T, etc.).

To block the number:

1. Open the Messages app (the envelope icon on the desktop).
2. Find a dialogue with an unwanted subscriber and tap on it.
3. In the upper right corner, press three dots (⋮) → select Details.
4. Scroll down and click Block → Confirm the action.

After that, messages from the blocked number will be automatically deleted and incoming calls will be deflected, +79XX1234567, +79XX1234568), You'll have to lock each one manually.

💡

To see a list of all blocked numbers, go to Settings → Applications → Messages → Blacklist. Here you can unlock the contact or add a new one manually by entering the number.

2. spam filter in MIUI: how to enable and configure

MIUI has a built-in spam filter that automatically sorts suspicious messages into a separate folder, and can be disabled by default — especially on new devices or after resetting settings.

The filter can be activated as follows:

1. Open the messages. → three-point (⋮) → Settings.
2. Select the Spam Filter.
3. Switch the slider Filter spam messages in the position of On.
4. (Optionally, set up filtering rules: 📌 Block messages from unknown numbers – unless you expect important SMS messages from strangers. 📌 Filtering Linked Messages – Useful Against Phishing Attacks. 📌 Smash as spam keyword messages (e.g., “winning”, “credit”, “gift").

Once activated, all suspicious SMS will be sent to the Spam folder (which will appear in the main Messages app menu).

3. blocking SMS from banks and fraudsters (including “gray” numbers)

Of particular danger are messages from fraudsters masquerading as banks (Sberbank, Tinkoff, VTB) or government services, which often come from “gray” numbers (for example, +79001234567 or alphabetical combinations such as SBERBANK), which are difficult to block by standard methods.

Here's what we can do:

• 🔒 Add a number to the blacklist (see section 1), even if it is alphabetical.
• 🛡️ Use filter keywords. In spam filter settings (Messages) → Settings → Spam filter) add phrases like: Sberbank Tinkoff your card is blocked
• 📱 Install specialized software (about this in section 5).

If fraudsters use spoofing when an SMS is supposedly from 900 (Sberbank number), you will not be able to block it through standard settings.

⚠️ Warning: Never click on links from such messages or enter card details! Banks never request confidential information by SMS. If in doubt, call the official bank number (indicated on the back of the card).

4. Resetting Message Settings: If Nothing Helps

Sometimes the spam filter stops working after the MIUI update or because of a bug in the Messages app, in which case the reset will help:

1. Go to Settings → Applications → Application Management.
2. Find the Messages and tap it.
3. Select Warehouse. → Clear the data.
4. Confirm the action. Attention: it will delete the entire history of the SMS!

After discharge:

• 🔄 Reset the spam filter (see Section 2).
• 📥 Restore important messages from your backup (if it was created via Mi Cloud or Google Drive).
• 🔐 Check if the blacklist settings are wrong.

If the problem persists, try updating the Messages app via Google Play or reinstall it (on some Xiaomi models, this is possible via Settings → Apps → Remove Updates).

5. Third-party applications for blocking SMS

If the built-in MIUI tools fail, third-party apps will come to the rescue, offering advanced features: keyword blocking, phishing link analysis, integration with spammer cloud databases.

Top.-3 apps:

Before installing, check the permissions of the application – some request access to contacts, call logs and SMS. If you are confused, use SMS Block – it works locally, without sending data to servers.

1. Check the reviews and app rankings on Google Play

2. read the privacy policy

3. Create a backup of SMS (via Settings → Messages → Backup)

4. disable the built-in spam filter in MIUI to avoid conflict-->

6. Additional measures: how to reduce the amount of spam

In addition to blocking messages you've already received, you can reduce the likelihood of them appearing.

• 🔐 Don't publish your number publicly (social networks, forums, ads) and use instant messengers or email to communicate.
• 📵 Refuse the operator's mailings: *152*0# and follow the instructions (for MTS, Beeline, MegaFon, Telephone, etc.)2).
• 🛡️ Use the second number to register. SIM (For example, from Tinkoff Mobile or Yota, suitable for disposable codes.
• 🔄 Update regularly MIUI — New versions improve spam filtering algorithms.

If spam SMS is sent on behalf of banks or government agencies, please report it:

• 🏦 Banks – through official websites or mobile applications (section “Report fraud").
• 📡 Communications operator – by support numbers or through personal account.
• 🕵️‍♂️ To the Center for Digital Expertise of Roskoshestvo – if the messages contain threats or extortion.

💡

The combination of a built-in MIUI filter and a third-party application (like Truecaller) blocks up to 95% of spam text messages, but neither method provides 100% protection – scammers are constantly adapting.

FAQ: Frequent questions about blocking SMS on Xiaomi