How to Update Security on Xiaomi: A Complete Guide to Smartphone Protection

Smartphones Xiaomi, Redmi and POCO regularly become a target for cyber threats due to the popularity of the brand and features of firmware MIUI. Even if you don’t notice the problems, outdated security components can put your data at risk, from leaking personal information to hacking accounts. Updating the protection is not a one-time procedure, but a systematic process that includes not only installing the latest patches, but also configuring the built-in tools. MIUI, Application rights verification and storage encryption.

In this article, we will discuss all the current ways to update security on Xiaomi devices in the future. 2026 From basic system patches to hidden features that are not mentioned in the official instructions. MIUI 14/15 (including Xiaomi 13/14 series, Redmi Note 12, POCO F5), And we'll also talk about how to avoid the common mistakes that nullify all your security efforts. If you've never checked your smartphone's security settings, you can do that after reading this article. 15 minute.

1. Check the current security status

Before you update anything, you need to understand how vulnerable your smartphone is right now. MIUI Security tool that analyzes the system for threats, but its data is often insufficient:

• 📅 Date of last security update: Go to Settings → The phone. → Update MIUI. If your date is older than 3 months, your device is critically vulnerable.
• 🔒 Encryption status: C Settings → Additionally. → Confidentiality → Encryption and accounts. If it says "Not encrypted," the data on the phone can be extracted in the theft.
• 🛡️ Active Threats: Open the Security app (Shield icon) and run a full check. Pay attention to warnings about suspicious applications and system vulnerabilities.
• 🔄 Version. MIUI: Compare it to the last stable builds on the official website. 2 difference+ The version means you missed critical corrections.

Pay special attention to the "System Vulnerabilities" item in the Security app, and if there are red alerts, they should be addressed first, even if they seem minor. CVE-2023-2129 (discovered 2023 It allowed attackers to gain root access via Bluetooth, and it is still relevant for devices that have not been updated for more than a year.

⚠️ Note: If in the section Update MIUI You see the message “Updates are not available”, but you know that your model has been released – this may mean that the device is locked regionally or is in the gray area (brought from abroad without official support). In this case, you can only update manually (instruction in section 4).

For advanced users, check the status of SELinux (the security mechanism of the Android kernel) through the command:

adb shell getenforce

If Permissive's answer is, your system is running in low-security mode, which is typical for custom firmware or after incorrect root access, Enforcing can only be returned by flashing.

2 Automatic Update: How to Enable and Why It Doesn't Work

The easiest way to keep it safe is to enable automatic updates, but on Xiaomi, this feature often fails: updates don't download, notifications don't come, or the system offers outdated versions. Let's figure out how to fix this.

To enable auto-updates:

1. Go to Settings → About Phone → Update MIUI.
2. Stick to three points (⋮) in the upper right corner and select Update Settings.
3. Activate the switches: 🔄 Automatic booting via Wi-Fi 📥 Automatic update installation (not available on all models) 🔔 Notifications of updates

If no updates are coming, the reasons may be as follows:

Critical information: On bootloader devices, automatic updates can lead to a brick if the firmware is not compatible with the current system modification. Before upgrading, check the bootloader status with fastboot oem device-info - if Device unlocked: true, only update manually.

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If the automatic update is not working hard, try changing it. DNS-servers on 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare) in Wi-Fi settings.

Manual security update: step-by-step instruction

If the automatic method doesn’t work or you want to install a specific firmware version (for example, with the latest security patches), you will have to update manually. POCO, But it requires caution – an error can lead to data loss.

Here's a step-by-step algorithm:

Download the right firmware for your model|Check the battery charge (minimum) 60%)|Create a backup copy of the data|Disable the screen blocker (PIN/graphical)|Connect to a stable Wi-Fi-->

• 📥 Download firmware: Official stable versions: miui.com Weekly beta (for enthusiasts): xiaomi.eu For POCO: Choose firmware marked "POCO" The file name should be in line with your model, for example: miui_BLOCKOTA_V14.0.5.0.TMBCNXM_..., where TMBCN — Model code (Redmi Note) 12), V14.0.5.0 — version.
• 🔧 Install firmware: Copy the.zip file into the root folder of internal memory (not folders!). Go to Settings → The phone. → Update MIUI. Stick to three points (⋮) → Select the update file. Select the downloaded file and confirm the installation.
• ⚠️ What to do if the update is suspended: If the process stops at the logo MI longer 15 - Do not turn off the phone (this can lead to a brick). 30-40 If the phone doesn't turn on after restarting, try logging in to Recovery Mode. + Volume up) and repeat installation.

For devices with unlocked loader or custom recaveri (TWRP) process:

1. Download firmware in.zip format


2.Reboot to TWRP (clamp Power + Volume up)




3. Select Install → Specify the firmware file




4. Wipe cache (Wipe → Dalvik/ART Cache)




5.Reboot.

⚠️ Attention: On Xiaomi models 12T, Redmi K50 And then again, when you manually update it through Recovery, you can use an antirollback, which is a rollback protection against the old version. If you're trying to install a firmware older than the current one, the phone locks. Before you upgrade, check the antirollback version in the file. /vendor/build.prop (parameter ro.vendor.build.security_patch).

Updating the security components manually

Even if you have the latest firmware installed, some security components may remain outdated. Xiaomi updates them separately through Google Play Services and its own services.

• 🔍 Google Play Protect: Open the Google Play Store → Profile → Play Protect. Click Scan and wait for results. If you have malware warnings, delete those apps.
• 🛡️ MIUI Security Components: Launch the Security app (shield icon). Go to Settings → Update the database. Click "Update Now" and it will download the latest virus signatures and firewall rules.
• 🔑 Device Encryption: If your phone is not encrypted, do it in Settings → Additionally. → Confidentiality → Encryption and accounts. It's going to take a while. 30-60 It can be interrupted for a few minutes, and it will result in the loss of all data.
• 🔄 Update Certificates: Outdated certificates can block access to secure sites. Update them to Settings → System system → Additionally. → Date and time → Installation of certificates.

For devices with MIUI 15 (2026) A new component added — MIUI Privacy Dashboard, which tracks applications' access to sensitive data in real time, to enable it:

1. Go to Settings. → Confidentiality → Privacy panel.
2. Activate the "Trace Application Activity" switch.
3. Set up suspicious activity notifications (e.g., geolocation access in the background).

Important: After manually updating the security components, restart the phone. Some changes (such as updating the virus database) only take effect after the reboot.

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Update to Google Play Services and MIUI Security Components should occur at least 1 time per month. These components block most modern threats, but their databases become obsolete faster than firmware.

5. Setup of built-in protection tools MIUI

Xiaomi offers several unique security features that are disabled by default or ineffective, and their proper setup can prevent most attacks even if an attacker gains physical access to the phone.

Here are the key settings to check:

The "Blocking When Theft" feature deserves special attention.

• The phone will automatically lock if SIM-The card will be removed or replaced.
• The attacker will not be able to reset the phone to factory settings without entering a password from the Xiaomi account.
• You can track the location of your device through Find Device even if your phone is turned off (unless the battery is removed).

For maximum protection, we also recommend:

• 🔐 Disable debugging by USB In Settings → Developers (if not used).
• 📱 Set a password for the bootloader (for advanced users): this will prevent the phone from flashing over without your knowledge.
• 🔄 Set up automatic cache cleanup in Settings → Warehouse → Cleanup (deletes temporary files that may contain sensitive data).

⚠️ Note: "Hidden Applications" function in MIUI Hidden applications are still visible in the task manager and can be detected through ADB. For reliable concealment, use the second space (includes in Settings). → Special facilities → Second space).

6. Additional measures: what to do after the update

Updating your firmware and security components is just the first step, and to minimize the risks, do the following:

• 🔍 Check Application Rights: Go to Settings → Annexes → Permissions: Sort applications by permissions (e.g. Camera, Microphone, Location) Disable access for applications that shouldn't have it (e.g. why a flashlight needs access to your contacts?).
• 🛡️ Install a reliable antivirus: Built-in protection MIUI It catches most threats, but for additional security we recommend: Bitdefender Mobile Security (light, does not slow down the system), Kaspersky Internet Security (well detects spyware), Malwarebytes (specializes in adware and trojan's). Avoid “antiviruses” from unknown developers – they often contain malicious code themselves.
• 🔒 Set up. VPN for public networks: When connecting to open Wi-Fi (cafes, airports), your traffic can be intercepted. Use: ProtonVPN (free, no logs). Windscribe (10 GB of traffic per month for free). VPN from Xiaomi (Mi) VPN) — It collects data on your activity.
• 📱 Disable unnecessary Xiaomi services: Some Xiaomi system applications send data to China even if you are not using them. Disable them: Mi Cloud (if you are not using the cloud), Mi Video, Mi Music (if you use alternatives). Analytics (in Settings). → Confidentiality → Special access → Usage analysis).

For users who travel or work with sensitive data frequently, we recommend:

• 🔐 Use a hardware security key (e.g., YubiKey) for two-factor authentication.
• 📱 Disable automatic Wi-Fi connection in Settings → Wi-Fi → Additionally. → Auto-connection to open networks.
• 🔄 Regularly check the activity log of Xiaomi account on account.xiaomi.com (Security section) → Journal of Activity").

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After the security update, be sure to restart your phone. Many changes (such as updating the kernel or drivers) only apply after the reboot.

7. Frequent mistakes and how to avoid them

Many Xiaomi users face the same problems when updating security, and here are the most common mistakes and solutions:

One of the most insidious mistakes is the Manual Upgrade Error 20, which means that the firmware is for a different region, like if you're trying to install Global. ROM phone-to-phone ROM, You get this mistake:

• Download firmware for your region (check in Settings) → Additionally. → Region).
• Use XiaomiTool to convert firmware (for advanced users only).
• Unlock the bootloader and flash Global ROM via Mi Flash Tool.

If the phone starts to overheat or discharge quickly after the upgrade, it may be due to:

• 🔋 Battery Optimization: Go to Settings → Battery → Optimize the battery and turn it off for system applications.
• 🔄 Background activity: check the settings → Annexes → Battery. → Battery usage and limit the activity of unnecessary applications.
• 📡 Modem problems: reset network settings in Settings → SIM-maps and mobile networks → Resetting settings.

⚠️ Note: If banking applications (e.g. SberBank Online or Tinkoff) have stopped working after the security update, this is due to a change in certificates. → Annexes → All applications → [name] → Warehouse → Clear the cache. If it doesn't work, reinstall the app.

FAQ: Answers to Frequent Questions