How to get rid of spam calls on Xiaomi Redmi 8: the complete guide

Spam calls on Xiaomi Redmi 8 have become a disaster for many users. Fraudsters, intrusive operators and robot auto-calls interrupt important conversations, drain the battery and distract from business. Unlike today’s flagships, where spam protection is built-in at the system level, owners of the budget Redmi 8 (2019 release) have to deal with the problem on their own.

In this article, we will analyze all available methods of blocking – from standard functions. MIUI to hidden settings and third-party applications, and we will pay special attention to the nuances of firmware MIUI 10-14, Because the interface and the capabilities are very different, you'll learn how to do this:

• 🔍 Set up a built-in blacklist with Redmi 8 features in mind
• 🛡️ Use spam protection in the "Phone" application"
• 📱 Install specialized applications that work on MIUI rootless
• 🔧 Optimize network settings to reduce incoming calls
• ⚙️ Update the firmware if spam is associated with vulnerabilities of the old version MIUI

All methods tested on Xiaomi Redmi 8 with firmware MIUI 11.0.8.0 (Android 9) and MIUI 12.5.3.0 (Android 10) If your version is different, the article has instructions for adapting solutions.

1. Built-in blacklist: how to add numbers correctly

The most obvious way is to lock numbers manually, but on Redmi 8, this process has nuances that are not written about in the official instructions, for example, if you just add a number to a blacklist through a call log, a spammer can bypass the lock by changing the last digit.

To lock the number permanently, follow the algorithm:

1. Open the phone application (pipe icon).
2. Go to the Journal section and find a spam call.
3. Press the number. → Select Details (or i in the upper right corner).
4. Tap to lock. → confirm.
5. It's important! Go back to your phone settings. → Lock the numbers and check that the number appears on the list. MIUI 11 Sometimes synchronization fails.

If the spammer calls from different numbers (for example, replaces the last digits), use regular expressions:

• 📞 B Settings → Block numbers click Add Add.
• 🔢 Enter a number mask, for example, to block all the numbers with the code. +7999123* enter +7999123 (no stars!).
• ✅ Now, all numbers starting with this combination will be locked automatically.

Has the number been added to the blacklist?

Has the list been synchronized after the reboot?

Are the masks for serial spammers checked?

Are notifications of blocked calls disabled?

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⚠️ Attention: MIUI 10 built-in blacklist limited to 100 numbers. If the limit is exhausted, use third-party apps (section 3).

2. setting up protection against spam in MIUI

Xiaomi has integrated built-in spam protection into the firmware, but by default it is disabled or ineffective. On Redmi 8, this feature is hidden in the depth of settings and requires manual activation.

How to turn on:

1. Open Settings → Applications → Application Management.
2. Find the phone app and tap it.
3. Select Permissions → Turn on Spam Protection (if you have an option).
4. Return to the phone app, open it. ⋮ (menu) → Settings → Protection against spam.
5. Activate the switches: 🔄 Automatic Spam Detection 📵 Block suspicious numbers 🔔 Display notifications about blocked calls (optional)

Nana MIUI 12+ And we have a feature called Cloud Spam Base, which uses data from other Xiaomi users to enable it:

Settings → Memory and device → Additional → Protection against spam → Cloud base

On Redmi 8s MIUI 10 Cloud-based spam is missing, but you can manually import lock lists from the file CSV (instruction).

3. Third-party applications to block spam

If embedded facilities MIUI They can't do it, they can't do it, they can do it with specialized applications, and the rule is, don't install programs from unverified sources, they can contain viruses or sell your data.

Top.-3 Proven applications for Redmi 8:

• 🛡️ Truecaller identifies spammers by a billion numbers. Minus: requires registration and access to contacts. Download from Google Play. Register by phone number. Enable Spam Blocking in your settings.
• 🚫 Blacklist Plus is a lightweight, ad-free app that works offline. → Blacklist → Add number/band
• 🔍 Hiya not only blocks calls, but also SMS-Spam, supports Russian-language fraud database.

⚠️ Warning: After installing third-party blockers, disable the built-in protection MIUI, To avoid conflict, otherwise calls may be missed or duplicated.

How to check which app blocks calls:

1. Open the Settings. → Annexes → Permits → Locking down calls.
2. Make sure that only one blocker (either built-in or third-party) is active.

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If after installing Truecaller no notifications about missed calls have come, open the application settings and turn on the option "Show notifications".

4. Hidden network settings: how to reduce spam

Few people know, but some spam calls can be cut off at the network settings level. Fraudsters often use virtual numbers or substitute caller. ID, These calls can be filtered through:

• 📡 Operator settings (disabling the services "Call for free", "Call back").
• 🔌 Flight mode (short-term network shutdown resets "sticky" connections).
• 🔄 Change of network type (c) 4G on 3G — Some spam bots don’t work on older networks).

Instructions for disconnecting the operator's hazardous services:

1. Dial the combination: For MTS: *111*0887# (Disable "Call Free" for Beeline: *110*09# (Disconnection of all paid services) For MegaFon: *105*00# (Premium SMS blocking for the body2: *220*1# (dial-off)

After shipping. USSD-wait for the request SMS-confirmation.

Reboot your phone (required!).

If spam is coming from international numbers, block incoming from abroad:

Settings → SIM-maps and mobile networks → Incoming calls → Block international numbers

5. Firmware Update: Why It's Important for Protection

At Xiaomi Redmi. 8 archaic (MIUI 10/11) spammers exploit system vulnerabilities that allow them to bypass the lock, for example, in older versions. MIUI 11.0.6.0 There was an error that caused the blacklist numbers to be missed when the device was restarted.

How to update the firmware safely:

1. Check the current version: Settings → About the phone → MIUI version
2. If the version is older MIUI 12.0.1.0, update: Settings → The phone. → Updating the system → Check for updates
3. If the update does not come (relevant for Russian firmware), download the full package from the official website: 🌐 Go to the Xiaomi downloads page. 🔍 Choose Redmi 8 (codenamed olive). 📥 Download the stable version for your region (for example, MIUI 12.5.3.0 Russia).

Settings → About Phone → System Update → ⋮ → Select the Update File

After updating to MIUI 12+ The number of spam calls is reduced by 40-60% Thanks to improved caller filtering algorithm ID.

⚠️ Note: Do not install firmware from third-party developers (custom) ROM) On Redmi 8, it often leads to a loss of IMEI or modem problems. Use only official packages.

Alternative methods: from SIM-maps before legal measures

If software methods don’t help, consider hardware and legal ways to fight spam:

• 📱 Replacement SIM-Operators (especially Tele2 and Iota) often give out numbers previously used by spammers. Ask for a clean number in the cabin (not involved in the promotions).
• 📋 Complaint to Roskomnadzor. If the spam is from Russian companies, fill out the form on pd.rkn.gov.ru.
• 🔄 Double. SIM-Use one map. SIM For personal calls, for the second (with no incoming tariff) for check-in.
• 🛡️ Hardware blocker. Devices like this. CPR Call Blocker filters calls at signal level.

If you have decided to change the number, do it correctly:

1. Export contacts first: Contacts → ⋮ → Contact management → Exports/imports
2. Make a new room in the operator’s cabin (take the tariff without the options “Callback” or “Voicemail”).
3. Move your contacts to a new number via Google Settings → Backup.
4. Set up a redirect from the old number (to the 1-2 for weeks to avoid losing important calls: 21[new-number]#

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Replacement SIM-Maps or numbers are a last resort, and try all the software methods first, as a new number can be re-entered by spammers through the use of the new number. 2-3 month.

7. Frequent mistakes and how to avoid them

Many Redmi 8 users make mistakes that nullify all efforts to block spam.

Another typical problem: after resetting settings (Settings) → Additionally. → Resetting) the blacklist is cleared to avoid it:

1. Before reset, export the lock list: Settings → Number locking → ⋮ → Export (file saved in.csv format).
2. After resetting, import the list back.

If spam calls continue despite all measures, check your phone for viruses using Malwarebytes or Dr.Web Light.

FAQ: Answers to Frequent Questions