Xiaomi smartphone owners, including the popular Mi 8 Lite model, often face intrusive advertising and scam messages, a problem that is relevant because standard filters do not always cope with the flow of unwanted content through various communication channels, blocking such messages becomes not just a convenience, but a necessity to preserve digital hygiene and peace of mind.
The MIUI system on the Mi 8 Lite has built-in protection tools that often go underrated.Tune these features well enough to cut off up to 90% of advertising noise without installing additional software. In this article, we will detail the algorithms that will help you isolate the device from information debris.
Keep in mind that locking methods may vary depending on the firmware version and regional settings of the device. Some carriers also provide their own filtering services that can be combined with smartphone settings to achieve maximum effect.
Use of the built-in MIUI message filter
The first and most logical step is to activate the standard antivirus and call filter, which is already integrated into the MIUI shell. This tool works at the system level, consuming the minimum amount of battery resources, which is critical for the Mi 8 Lite. To access the settings, you need to open the Security application and select the Antivirus or Filter section.
Inside the filter menu, you'll need to enable the option to block messages from unknown numbers, and the system will analyze the incoming stream and automatically hide messages marked as spam in databases, a basic level of protection that must be activated for each user.
⚠️ Warning: When turning on aggressive filters, be sure to check the Spam or Blocked folder once a week to avoid missing important notifications from shipping services or banks that may have been mistakenly classified.
You can also customize your keyword filters, which is a powerful tool against advertising. If you get flooded with credit or casino messages, just add the words "credit," "winning," "promotion" to the filter blacklist. The system algorithm will ruthlessly remove any incoming letters containing these combinations.
- 📱 Open the Security app on the home screen.
- 🛡️ Go to the “Filter” section and click on the gear settings.
- 🚫 Activate the switch "Block messages from unknowns».
- 🔑 Add keywords to the section “Keyword Filter».
You don't have to ignore the possibility of manually adjusting lists. Sometimes the system gets it wrong and you have to blacklist your own number through your message history. This takes a few seconds, but ensures that the particular sender can no longer bother you.
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Periodically update the spam databases in the filter settings to keep the protection up to date against new scammer schemes.
Set up a blacklist through contacts
An alternative and more stringent method is to add numbers directly to the blacklist through the Contacts app, which is ideal for blocking specific subscribers who are annoyingly reminding themselves. SIM-A card or phone book that provides almost 100% of the result.
To add a number to the ignorant list, look for it in the call log or contact list. The contact card usually has a three-dot menu or a "More" button where the "Block" option is hidden. Once confirmed, all communication attempts from this subscriber will be interrupted and messages will be hidden.
Managing the blocked contacts list is also available in the Contacts app settings, where you can view the full list of ignored numbers and remove them if you need to, which is convenient if you block someone out in a fit of emotion and then things change.
Importantly, this method requires manually adding each number, and if the spam is from different short numbers or changing addresses, it will be time-consuming, but it is ideal for personal conflicts or blocking specific companies.
Some users prefer to create a separate contact group called “Ignor” and add all unwanted subscribers to it, although in modern versions of MIUI it is easier to use direct blocking.
Third-party applications for blocking
If the Xiaomi Mi 8 Lite is not enough, Google Play’s dedicated apps come to the rescue, with market leaders such as Truecaller, Should I Answer? and SMS Blocker, which have huge crowdsourced number databases that are updated in real time by millions of users around the world.
Installing such software requires broad permissions to access calls and messages, without which they will not function. Once set up, the app takes on the role of a doorman, checking each incoming guest on its database before letting it onto your screen.
| Annex | Type of lockdown | Room database | Impact on the battery |
|---|---|---|---|
| Truecaller | Calls + SMS | Global, huge. | Average. |
| SMS Blocker | Only SMS | Customized | Low. |
| Should I Answer? | Calls + SMS | Community-moderated | Low. |
| Hiya | Calls + SMS | Commercial base | Average. |
When choosing a third-party solution, pay attention to the presence of advertising in the application itself. Free versions often contain banners that can be as annoying as spam messages. Paid versions usually lack this drawback and offer a more subtle filter customization.
It's also worth mentioning that some antiviruses, like Kaspersky or Dr.Web, have anti-spam modules. If you already have such a security suite installed, a separate SMS blocking app may be redundant. Check your antivirus settings, maybe the functionality you need is already active.
Why do apps request access to contacts?
Services of telecom operators
Keep in mind that spam can be fought on the cellular level, with the largest operators (the “big four”) offering services to block advertising calls and SMS, paid or shareware services that filter traffic before it reaches your Mi 8 Lite.
For example, a service might be called Antispam or Spam Protection, and you can connect it through a link. USSD-The advantage of the method is that it does not consume the battery of the smartphone and does not require the installation of additional software.
But network filters have their limitations: they can skip new numbers that are not yet listed in the database, or, conversely, block useful mailings from banks and government agencies if they use automatic gateways similar to spam mailers, the accuracy of the filtering depends on the quality of the operator's base.
- 📞 Go to your mobile operator’s app.
- 🔍 Find the "Services" or "Services" section».
- 🛡️ Select the option “Antispam” or “Ad Blocking».
- ✅ Confirm the connection of the service (may be paid).
Often, operators offer a trial period, like 7 or 14 days of free use, which is a great opportunity to test the effectiveness of the service in your region without any financial investment, and if the result is satisfied, you can sign up.
It is important to distinguish between network and phone locks: Network locks prevent the message from being received (it won’t even come to the spam folder), whereas phone locks take the message and hide it immediately.
Manual locking through codes and commands
For advanced users, it is possible to control locking through an engineering menu or special codes, although on modern versions of Android and MIUI this functionality is often cut down for security purposes. However, standard redirect codes can help redirect unwanted calls, although for SMS this works differently.
In the context of SMS, codes are often referred to as response patterns or rules. In the standard Messages app, you can set up an automatic response or ignore certain prefixes. However, the most effective code is the quick blacklist command.
On Xiaomi Mi 8 Lite, you can use the Quick Lock function. To do this, in the filter settings, you need to activate the option to block the number directly from the notification of the message that has arrived. You do not need to open the application, you need to swipe or long tap on the notification.
⚠️ Warning: Be careful with redirect codes found on the internet. misuse USSD-commands can result in paid redirects of your calls to other numbers or reset network settings.
There are also hidden Android menus available through a set of specific combinations in the "caller": for example, code ##4636## opens the test menu, but there is usually no direct blocking of SMS.
If you use virtual carriers or specific rates, check with support if they have their own short commands to activate spam protection, which can be faster than digging into the phone settings.
☑️ Checking Spam Protection
Frequently Asked Questions (FAQ)
Will the sender know that I have blocked his SMS?
Can I block all of my messages at once, except for the chosen ones?
Does blocking SMS affect the operation of the bank application?
What to do if important messages get spam?
To sum up, the Xiaomi Mi 8 Lite provides a powerful enough toolkit to combat unwanted messages. The combination of a built-in filter, a blacklist of contacts and, if necessary, operator services will allow you to completely clean the information space of your smartphone.
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A comprehensive approach combining MIUI settings and operator-side filtering gives the best result in the fight against spam.
Remember that digital security is a process, not a one-time action. Check system updates regularly, as newer versions of MIUI make spam detection algorithms smarter and more efficient. Keep your nerves and data safe using the methods presented.