Installing applications from unknown sources on Xiaomi Redmi Note 10 smartphones is a feature that simultaneously gives freedom and creates risks. APK-files outside of Google Play, which is useful for testing betas or specialized software, and opens the door to malware, phishing and unstable system operation. If you want to protect your device from accidental installations or restrict access to this feature for other phone users, it is important to properly configure security settings in the phone. MIUI.
In this article, we will discuss in detail how to completely disable the installation from unknown sources on Redmi Note 10, configure exceptions for individual applications (for example, browsers or file manager), and also consider the nuances of the function in different versions of MIUI 12/13/14.
Why shut down the installation from unknown sources?
The main reason is security, even if you're sure of the sources. APK-Files, other phone users (children, colleagues, friends) may accidentally or intentionally install malware:
- 🦠 Malware: Trojans, spies, cryptocurrency miners are often spread through fake APK (For example, "hacked" versions of popular games).
- 📱 Incompatibility with MIUI: Apps not optimized for Xiaomi can cause crashes, overheating or rapid battery discharge.
- 🔄 Update conflicts: Manually installed APK Can block automatic updates of system applications via Google Play.
- 🛡️ Warranty violation: In some regions, the installation of unofficial software may be a reason for refusing warranty repairs.
Also, disabling this feature is helpful if you:
- 👶 Give your child a phone and want to limit access to unwanted content.
- 🔒 Use the device to work with confidential data (banking, corporate applications).
- 📦 Plan to sell or transfer your smartphone to another user.
Where is the setting on the Redmi Note 10?
Depending on the version of MIUI, the path to setup may vary slightly, but the general logic remains: On the Redmi Note 10 (and most Xiaomi devices from 2021-2023), the option is hidden in the security menu.
- Open Settings (the gear icon on the home screen or in the application menu).
- Scroll down and select Applications → Application Management.
- At the top of the screen, press three dots (⋮) and select Special Access.
- Slip on the item Installation from unknown sources.
Alternative path (for MIUI 13/14):
Settings → Privacy → Special Permits → Installation of Unknown ApplicationsIf you have a global version of MIUI (e.g. Redmi Note 10 Global), the menu items may be in English: Settings → Apps → Manage apps → Special app access → Install unknown apps.
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On some firmware (e.g. Xiaomi.EU), the path may be different. If you do not find an item, try searching in the settings (the magnifying glass icon at the top).
Step-by-step instruction for disconnection
When you get to the Installation menu from unknown sources, you will see a list of apps that are allowed to install APK. By default, this can be:
- 🌐 Browser (Chrome, Mi Browser).
- 📁 Files by Google, Mi File Manager).
- 📥 Messengers (Telegram, WhatsApp – if they were downloaded through them) APK).
To completely block the installation:
Open the list of applications with installation permission|For each application, transfer the slider to the "Off" position."|Make sure that no application has the right to install.|Restart your phone to apply changes-->
Important: If you see unknown apps on the list (such as Chinese characters or random letters), this could be a sign of a virus infection.
- Turn off permission for a suspicious app.
- Remove it through Settings → Apps.
- Scan with an antivirus (such as Malwarebytes or built-in Mi Security).
What to do if the slider is inactive?
Set up exceptions for individual applications
Disabling the installation completely from unknown sources is not always convenient, for example, you can trust the APK from the developer's Telegram channel, but you don't want to risk with files from the browser.
| Annex | Recommendation for authorization | Risks. |
|---|---|---|
| Chrome/Mi Browser | ❌ Shut down. | High risk of downloading malicious APKs from websites |
| Telegram | ⚠️ Allow if you trust the sources | Average risk (depending on the channels you subscribe to) |
| Files by Google | ❌ Shut down. | Can be used to install APKs from downloaded folders |
| ADB Installer (for developers) | ✅ Permission. | Low risk (for experienced users only) |
To add an exception:
- In the Installation menu from unknown sources, find the desired application.
- Activate the slider next to its name.
- Confirm the action in the dialog box (a password or fingerprint may be required).
⚠️ Note: If you allow installation for instant messengers (such as Telegram), remember that APK-files can be automatically downloaded to the Download folder and installed without additional confirmation. To avoid this, turn off autoload files in the messenger settings.
Problems after disconnection and their solutions
After blocking the installation from unknown sources, Redmi Note 10 users may face several typical problems.
1. no updates are installed for system applications
Some Xiaomi apps (such as Mi Community or Themes) are updated through APKs that are loaded in the background. If you completely disable the installation, the updates will stop coming.
Decision:
- Allow installation for the com.android.packageinstaller application.
- Or update apps manually through Google Play.
2. Error "Installation blocked by administrator policy"
This error occurs when device management is activated on the phone (for example, through Microsoft Exchange or enterprise applications).
Decision:
- Go to Settings → Passwords and Security → Device Administrators.
- Disable all unnecessary administrators (except Find My Device).
- Reboot the phone.
3.The installation via ADB is not working.
If you use adb install to install apps from your PC but get an error, check:
- Is USB debugging enabled (Settings → About Phone → MIUI Version → 7 times tap on version → go back to Additional settings → For developers → Debugging by USB).
- Is installation for ADB Installer allowed in the Installation menu from unknown sources?
⚠️ Note: If you use Redmi Note 10 with Xiaomi.EU firmware or custom recavery (TWRP), Disabling the installation from unknown sources may block access to some recovery features, in which case it is recommended to leave permission for com.android.packageinstaller.
Differences in different versions of MIUI
The interface and logic of the feature have changed with the release of new versions of MIUI. Below are the key differences for the Redmi Note 10:
| MIUI version | The path to adjustment | Features |
|---|---|---|
| MIUI 12 | Settings → Applications → Application Management → Special Access | The slider for each application works stably, but can be reset after the update. |
| MIUI 13 | Settings → Privacy → Special permissions | Added digital signature verification APK. Some files can be blocked even when allowed. |
| MIUI 14 | Settings → Applications → Permissions → Installation of unknown applications | There's a risk alert when you turn on the permission, and you can lock it with a password. |
MIUI 14 also introduced the Malware Installation Protection feature, which automatically scans the APK before installation.
Settings → Privacy → Security → Protection from malicious installationsOn the Redmi Note 10 with MIUI 13.0.5 and later, when you try to install an APK from a blocked source, the system displays a notification with a request to temporarily allow installation for 5 minutes.
Additional security measures
Disabling the installation from unknown sources is only part of the protection. To maximize the security of the Redmi Note 10, follow the following steps:
- 🔐 Set the screen lock: PIN-A code, a pattern lock or a fingerprint, which will prevent unauthorized access to settings.
- 🛡️ Activate Mi Security: The built-in Security app scans the system for viruses and suspicious activity. Update its databases through Settings → The phone. → Updating the system.
- 📡 Disable the installation through USB: Go to Settings. → Additional settings → For developers and deactivate the installation through USB (if you don't use ADB).
- 🔄 Set up automatic update: Enable auto-update for Google Play Protection (Play Store) → Settings → Play Protection).
If you frequently install APKs for testing, but want to minimize the risks:
- Use a sandbox (like the Shelter or Island app) to isolate test programs from the main system.
- Before installing, check the APK hash on sites like VirusTotal or APKMirror.
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Even with the installation disabled from unknown sources, attackers can exploit vulnerabilities in the browser or messengers to download APK. Regularly update Chrome and MIUI to close such holes.