Installing apps from unknown sources on Xiaomi Redmi 6 is a necessary feature for those who want to download APK-files outside of Google Play or the official store MIUI. However, by default, this option is disabled due to the security policy of Android and the Xiaomi shell. Without its activation, the system will block the installation of any third-party files, giving an error "Installation is blocked».
In this article, you will find the current manual for 2026, adapted for Redmi 6 with MIUI 10/11/12 in mind. We will not only examine the standard method through settings, but also alternative methods for cases where the option is hidden or unavailable, and also explain how to circumvent the MIUI restrictions on installing APK without root rights if the system persistently blocks the process.
Why is Redmi 6 blocking APK installation?
The restriction on installation from unknown sources is part of the Android security mechanism reinforced by Xiaomi in its firmware.
- 🛡️ Security: preventing the installation of malware (viruses, spyware).
- 📱 Politics MIUI: Xiaomi is actively promoting its app store and restricting third-party sources.
- 🔄 System Updates: In New Versions MIUI (From 12 onwards, the path to settings may change.
- 🔒 Regional restrictions: on some firmware (for example, China) the option is completely hidden.
On the Redmi. 6 Android 8.1 Oreo and MIUI 10/11 The path to unlock is different from the newer models. MIUI 12+ There's a separate section called "Special Permissions" that doesn't exist in the older versions, and you should also consider that after you reset or update your firmware, you have a separate install permit. APK drop off.
⚠️ Attention: If you download APK from unreliable sources (torrents, third-party sites without any HTTPS), The risk of virus infection increases 3-4 times. Even after you turn on the option, always check files through VirusTotal before installing.
Standard method: through security settings
This is the most reliable and recommended method for Redmi 6.
- Open Settings (the gear icon on the main screen).
- Scroll down and select Additional → Privacy.
- Slip on the item Installation from unknown sources.
- In the application list, select the one you will install the APK through (for example, File Manager or Browser).
- Activate the slider Allow installation from this source.
If you don't have the right app (e.g. Chrome), try downloading APK from Xiaomi's standard browser or File Manager. Importantly, permission is given separately for each application. That is, if you've allowed installation through the File Manager, but you're trying to open the APK from Telegram, the system will block the process again.
Download the APK file from a verified source (APKMirror, APKPure)
Check the file for viruses (VirusTotal, Dr.Web)
Charge your phone at least 30%
Close all background applications
-->
On some MIUI 11 firmware for Redmi 6, the path may be slightly different:
Settings → Applications → Application settings → Installation from unknown sources⚠️ Warning: If the setting is blocked after activation, try restarting the phone. Sometimes the changes only take effect after the reboot.
Alternative methods if the standard method does not work
If the settings do not include “Install from unknown sources” or it is inactive, try these options:
1. via ADB (for power users)
This method requires a computer and enabled debugging over USB, which is suitable if the option is hidden in the firmware:
- Turn on Developer Mode (7 times tap the MIUI version in Settings → About Phone).
- Activate Debugging by USB in Settings → Additional → For developers.
- Get Redmi on board. 6 to the PC and execute the command in ADB: adb shell settings put global install_non_market_apps 1
Then restart your phone. The option should appear in the settings.
2. Through a third-party file manager
Some managers (like Solid Explorer or FX File Explorer) have built-in circumvention. Install one of them via Google Play, then:
- Open up. APK-file through a third-party manager.
- When an error occurs, click “Settings” in the lock window.
- The system will redirect you to the permissions section - activate the slider.
3. Installation via TWRP (for stitched phones)
If your Redmi 6 has a custom TWRP recap, you can flash APK as ZIP:
- Download the APK and rename the extension to.zip.
- Reboot to TWRP (clip Power + Volume up).
- Select Install → Find the file → Swipe to confirm.
Standard settings of MIUI
ADB-team
Party file manager
TWRP/Castom firmware
Another way.-->
What if MIUI is blocking the installation?
Sometimes, even after the option is turned on, Xiaomi continues to block the APK. Here are the possible reasons and solutions:
| Problem. | Reason. | Decision |
|---|---|---|
| No option “Installation from unknown sources” | Firmware for China or corporate version of MIUI | Use ADB or run a global version |
| When installing, the “Parse Error” error is dropped. | A damaged APK or incompatible architecture | Download the file again, check for arm64 support |
| After rebooting, the option is reset. | MIUI bug or security policies | Enable “Application Protection” in the battery settings |
| The installation is blocked by MIUI antivirus | File marked as suspicious | Turn off Security → Real-time Scanning |
If none of the methods worked, check:
- 📌 Version MIUI: on certain assemblies (for example, MIUI 10.2.2.0) the option is unstable. Update the firmware.
- 🔧 Root rights: If your phone is rooted, try using Root Explorer to install it.
- 🔄 Firmware region: Chinese versions MIUI often block out APK. Use the Mi Flash Tool to run the global version.
How to find out the MIUI version on Redmi 6?
How to install an APK without risk
Enabling an installation from unknown sources opens up potential vulnerabilities. Follow these rules to minimize risks:
- Download. APK only from verified sources: 🔍 APKMirror (checks files for changes). 🛡️ APKPure (has its own scanning system). 📱 Official developer sites (e.g. telegram.org for Telegram X).
Check the hash amounts:
MD5
SHA-1
Use antiviruses:
Dr.Web
Malwarebytes
Limit your permissions:
Settings → Applications → Permissions
Redmi 6 with MIUI 10/11 has a hidden “Application Check” feature in security settings that can block even allowed APKs. To turn it off, go to Settings → Additional → Security → App Check and deactivate the option.
💡
Before installing an APK, create a restore point in TWRP (if installed) to help roll back the system in the event of a crash.
Frequent mistakes and their solutions
When you install an APK on Redmi 6, you're going to have a problem, and here's how to solve it:
| Mistake. | Reason. | Decision |
|---|---|---|
| App not installed | A newer/older version has already been installed. | Remove the old app or use adb install -r filename.apk |
| INSTALL_FAILED_INSUFFICIENT_STORAGE | Lack of space in /data section | Clear the cache or transfer the files to SD-map |
| INSTALL_PARSE_FAILED_MANIFEST_MALFORMED | Damaged AndroidManifest.xml in APK | Download the file again from another source |
| MIUI blocks installation (without error code) | Active function Protection against viruses | Turn it off in Settings. → Security |
If you install the message "App does not support your device", it means that the APK is built for a different processor architecture. Redmi 6 has a Medatek Helio P22 chip with support for arm64-v8a. Make sure that the downloaded file is compatible with this architecture.
💡
Before installing an APK, always check its compatibility with the Android version (8.1 Oreo for Redmi 6) and the processor architecture (arm64).