A smartphone Redmi 7, running on an operating system Android with a proprietary shell MIUI, has powerful built-in tools for protection against digital waste. However, many users unknowingly continue to receive annoying messages from banks, stores and scammers, simply by not activating the necessary functions in the device menu. Blocking messages This is not just a way to clear the correspondence history, but also an important precaution that protects your personal data and nerves from intrusive advertising.
In this article we will examine in detail all available incoming filtering methods SMS messages directly on your gadget. You will learn how to configure black list, how to use smart system filters MIUI and what third-party solutions may be useful if standard capabilities are not enough for your tasks.
The setup process is intuitive. and does not require root access or deep technical knowledge. It is enough to carefully follow the steps described below to permanently get rid of the stream of unwanted content on the screen of your Redmi 7.
Using the built-in MIUI message filter
Shell MIUIinstalled on Redmi 7has a deep integrated security system developed by the company Xiaomi. This mechanism works at the system level, intercepting messages before they even reach the main notification window or inbox. To activate this function, you do not need to download additional software, since all the necessary modules are already present in the firmware.
To get into the filtering settings, you need to open the standard application Messages and find the menu icon, which is usually located in the upper right corner of the screen in the form of three dots or a gear. In the list that opens, select the item Spam settings or Antispam. This is where the main levers for controlling incoming traffic are hidden.
Inside the menu Antispam you will see the “Spam Filter” switch, which by default can be disabled. After its activation, the system will begin to automatically analyze the text of incoming messages and sender numbers, checking them against an extensive database of known scammers and advertising agencies. Enabling this switch is the most effective first step in the fight against spam on Redmi 7.
The system allows you to flexibly configure blocking criteria. You can choose whether to block messages only from unknown numbers, or enable filtering by keywords such as "credit", "winning" or "promotion". This makes it possible to fine-tune protection algorithm to your individual needs, without missing important notifications from delivery services or work contacts.
Periodically go to the “Spam” folder inside the messages application to check if important messages have gone there by mistake. The system is not perfect and can sometimes trigger false positives.
Manually adding numbers to the blacklist
Sometimes automatic filters miss annoying subscribers who change numbers or use short business names of senders. In such cases, the most effective method is to manually add a specific contact to blacklist. This feature is guaranteed to block any communication attempts from the specified number, be it calls or text messages.
The fastest way to do this is to open the unwanted message itself in the application Messages. There's usually a three-dot icon or a special lock icon at the top of the screen, next to the sender's name or phone number. By clicking on it, you will see a context menu where you need to select the option Block or Add to blacklist.
An alternative path is through global security settings. You can launch the application Security (green icon with lightning), which is preinstalled on Redmi 7. In this menu you need to find the section Black list, click on the add icon (usually a plus in a circle) and select Add number. Here you can manually enter phone numbers or select a contact from the address book.
It is important to understand that adding to the blacklist is an action with a one-way effect. The sender will not receive a notification that his message is blocked; it will simply disappear into the depths of the system. For you, these messages will be accumulated in a separate blacklist folder, from where they can be restored or viewed later if necessary.
☑️ Checking the number blocking
Blocking messages by keywords
One of the most powerful functions in the arsenal MIUI is the ability to block messages containing certain keywords. This is ideal for combating mass mailings from various stores, bookmakers and financial organizations that use template phrases in their texts.
To configure this parameter, you must again go to the menu Spam settings in the message application or section Black list applications Security. There you should find the item Keyword filter or Text blocking. By clicking on it, you will be taken to the interface for managing the list of prohibited phrases.
In this menu you can add any word or combination of characters. For example, if you are regularly harassed by offers to issue a card, add the words “credit”, “limit”, “approval”. If you receive notifications about winnings, add the words “winning”, “lottery”, “prize”. The system will scan each incoming message, and if it matches any of the specified terms, the message will be automatically moved to spam.
You should be careful when compiling a list of prohibited words. Using too general terms may cause you to miss important information. For example, blocking the word “code” can hide an SMS with a confirmation code from a bank or instant messenger, which will create problems when logging into services.
How do regular expressions work in filters?
In the advanced settings of some versions of MIUI, you can use templates. For example, blocking all messages starting with certain numbers can be configured through special characters, but for the average user simple text matches are sufficient.
Setting up notifications from blocked contacts
Once you have configured filtering and filled out the blacklist, a logical question arises: how will the system notify you about blocked contacts? messages? By default Redmi 7 can show notifications that a message has been intercepted, which is sometimes also annoying if there is a lot of spam.
To get rid of these notifications, go to settings Antispam and find the section responsible for notifications. Here you can completely disable sound and pop-ups when you receive blocked SMS. In this case, the messages will quietly lie in the spam folder, without bothering you until you personally check.
Also in this section, the “Show content in notification” option is often found. To improve your privacy, it is recommended to disable this feature. Then, even if a notification about a new message (not blocked) comes to the lock screen, the text of the message will not be visible to prying eyes, which is a good practice digital hygiene.
Do not forget that notification settings can be reset after major updates to the system Android or shell MIUI. Therefore, it makes sense to periodically check this section to make sure that your smartphone continues to behave quietly and does not distract you with unnecessary sounds.
| Blocking method | Efficiency | Difficulty of setting | Risk of missing important SMS |
|---|---|---|---|
| MIUI Automatic Filter | High | Low | Low |
| Blacklist (number) | 100% | Medium | Missing |
| Filter by keywords | Medium | High | High |
| Third-party applications | Very high | Average | Average |
Third-party applications for enhanced protection
If the built-in tools Redmi 7 are not enough for you, or you want to get more detailed statistics and management, you should pay attention to third-party solutions from the store Google Play. There are many applications that specialize exclusively in blocking calls and SMS, which use their own, often more up-to-date databases of spammers.
One of the most popular solutions is the application Call Blocker & SMS Blocker or analogues from the developer ThinkYeah. Such apps allow you not only to block messages, but also to create complex blocking schedules and set up different profiles for different situations (for example, “Night” or “Work” mode). They also know how to backup the blacklist to the cloud.
When installing such an application, the system Android will ask for a number of permissions. It is critically important to provide access to SMS and Contacts, otherwise the app will not be able to function. You will also need to allow the application to run in the background and autorun so that the filter does not turn off when the memory is cleared.
⚠️ Attention: When installing third-party blockers, carefully read the privacy policy. Some free applications may collect statistics of your messages to improve their databases, which may be undesirable from a privacy point of view.
Another advantage of third-party software is the ability to import ready-made databases of spammer numbers, which are updated by the user community in real time. This is especially useful for combating new fraud schemes that have not yet been included in the official update databases Xiaomi.
Third-party applications provide more flexibility, but consume more battery resources and require careful configuration of permissions to work stably on Redmi 7.
What to do if messages still arrive
In rare cases, users are faced with a situation where, despite to all settings, messages from certain senders continue to arrive. This may be due to the fact that the spammer uses number spoofing technology or sends messages through special gateways, which the system perceives as legitimate service notifications.
In such a situation, it is recommended to check whether the filtering function is disabled for a specific type of message. In the settings Messages find the section Advanced and make sure there are no checkboxes there that allow displaying messages from service numbers. Sometimes clearing the application cache helps Messages through the menu Applications in the phone settings.
If the problem is widespread and concerns messages from the same legal entity (for example, a bank or telecom operator), the most radical but effective method is to contact the sender directly with a request to exclude your number from the mailing list. Often the SMS text itself contains instructions for unsubscribing, for example, the “STOP” command to a short number.
As a last resort, if spam comes from different numbers and contains threats or attempts at extortion, you need to save screenshots of the messages and contact law enforcement agencies or your mobile operator to block the service at the network level.
Why messages from 900 do they come even if the number is on the black list?
Number 900 and similar short numbers are usually service names, not regular phone numbers. The standard phone blacklist may not block them. For them, you need to use a keyword filter or special settings for blocking service SMS.
⚠️ Attention: The menu interface and item names may differ slightly depending on the version of MIUI installed on your Redmi 7. If you do not find the specified item, try using the search in the settings by entering the word “spam” or “blocking.”
Often asked questions (FAQ)
Will the sender see that I have blocked his message?
No, the sender will not receive any notification about the blocking. For him, the message will look like it was sent successfully. Only you won’t see it in the main “Inbox” folder, it will be hidden in the “Blocked” or “Spam” section.
Is it possible to recover an accidentally blocked important message?
Yes, all blocked messages are saved in a special folder inside the “Messages” or “Security” application. You can go there, find the message you want, open it and select the “Recover” or “Not Spam” option to return it to your regular inbox.
Does blocking SMS affect the ability to receive calls from the same number?
By default, adding a number to the blacklist in MIUI blocks both calls and SMS at the same time. However, in the advanced blacklist settings, you can separate these functions and allow calls while blocking only text messages, or vice versa.
Are the blacklist settings reset when updating the system?
In most cases, the blacklist and filter settings are saved when updating the Android or MIUI version. However, after a major factory reset (Hard Reset), the entire blacklist will be cleared and will have to be configured again.
Does Redmi 7 block messages from unknown numbers that are not in contacts?
Yes, in the spam filter settings there is an option “Block messages from unknown numbers”. If you activate it, then all SMS from people who are not in your phone book will automatically go to spam, regardless of their content.