Owners of Xiaomi, Redmi and POCO smartphones often face system notifications that the “Permissions Controller” restricts the operation of any application. This is not a virus or a bug, but an important mechanism for protecting the MIUI or HyperOS operating system. Understanding the principles of its operation allows you to significantly improve the security of the device and extend battery life.
In essence, this component acts as a strict security guard, who makes sure that programs do not access the functions of the phone without your knowledge. The permission controller blocks attempts at background activity, access to the microphone, camera or geolocation if you have not previously given explicit consent to this. Ignoring these notifications can cause important messengers to stop sending messages, and the navigator loses the signal.
In this article, we will discuss in detail how to properly configuring this tool so that it does not interfere with the comfortable use of the gadget, but reliably protects your privacy. You will learn to distinguish secure locks from those that need to be immediately removed for the correct operation of the software.
What is a permission controller and why is it needed?
At the heart of the Android security system that Xiaomi uses is the sandboxing model, where every application is isolated. However, some programs try to break these boundaries for the sake of data collection or advertising. The permissions controller is a manufacturer add-on that visualizes and strengthens these restrictions. It prevents hidden installation of other applications, auto-start heavy processes and access to critical data.
The main purpose of this tool is to prevent personal information from leaking, and when you install new software, it requests dozens of accesses, and without tight control, unscrupulous developers could scan your contact list or call history in the background, and MIUI Security intercepts these requests and pauses them until you decide.
⚠️ Warning: If you see a notification that a system component of Google or an important bank application is blocked, don’t be in a hurry to turn it off completely. First, check which access was restricted, as a full stop may disrupt the payment system.
In addition, this mechanism helps to save battery power. By blocking the background activity of “gluttonous” applications, the controller prevents them from constantly waking the processor and using the communication module, this is especially true for devices with a smaller battery, where every percentage of charge counts.
The main types of blocking and their significance
The system categorizes threats and constraints into several categories, and understanding the differences between them will help you make informed decisions, and users often experience a shutdown when an app tries to start immediately after turning on the phone or restarting.
The second popular type is background restriction, in which case the program only works when it's open on the screen, and once you fold it, the process freezes, which is useful for games and videos, but harmful for messengers who need to receive push notifications in real time.
- 🚫 Auto Start: prevents the application from starting with the system, which speeds up the loading of the OS.
- 🔒 Background mode: limits work in the folded state, saving processor resources.
- 📍 Geolocation: Prohibits location tracking when the screen is off.
- 📞 Calls and SMS: critical access, which is often blocked to prevent spam and fraud.
There is also a category called Install Unknown Applications, and permissions controllers make sure that programs don't try to install other applications with a quiet boot. APK-This is a common tactic of dropper viruses that disguise themselves as useful utilities.
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Use the Privacy Protection feature in your security settings to virtually change your location for apps you don’t trust but that require GPS to work.
How to set up access for messengers and important applications
For WhatsApp, Telegram, Viber and banking applications to work properly, you need to create exceptions. If you don't, you may miss an important call or money transfer notification, and you can set up through a security center, not through the standard app menu.
First, open the Security app (green zipper icon). In the tool list, look for the Permissions or Permissions Manager. This shows all the rights you have requested. Find the right app in the list and make sure the AutoStart switch is activated.
☑️ Set up an important application
Next, you need to set up the background. Go to Settings → Applications → All applications. Find the messenger you want, select Battery or Energy Saving, and set the No Limits value, which will give the system a signal not to kill the application process for the sake of saving charge.
| Type of application | Auto-start | Background mode | Battery priority |
|---|---|---|---|
| Messengers | Turn on | Permission. | No restrictions. |
| Navigators. | Turn it off. | Permission. | No restrictions. |
| Games | Turn it off. | Limit | Savings |
| Social media. | Turn it off. | Limit | Smart savings |
After making changes, it is recommended to restart the device so that new parameters take effect. Xiaomi's system sometimes resets the energy saving settings after updating the firmware, so it makes sense to check these parameters again.
Control of access to microphone and camera
Modern versions of MIUI and HyperOS have added a privacy indicator, where when an application uses a microphone or a camera, a green or orange dot lights up in the upper right corner of the screen, and permissions controller allows you to control that access in detail.
You can set the system up so that the apps only access the camera while they're in use, which means that once you fold the app, the access will be automatically disabled, which prevents hidden shooting or recording sound in the background.
⚠️ Warning: If the access indicator lights up when you are not using the camera or voice recorder, check the list of applications that are working immediately.
To manage, go to Settings → Protection of confidentiality → Permissions Manager: You can choose a particular application and deny it access to the camera completely or only allow "One Time" -- the latter is ideal for applications that rarely need a camera, such as scanning. QR-code-in.
What to do if the indicator is constantly burning?
Blocking the installation of applications from unknown sources
One of the key security functions is installation control. APK-Android by default forbids installation of programs not from Google Play, but many users disable this ban.The permissions controller Xiaomi adds another layer of protection, requiring additional confirmation even after enabling the installation from unknown sources.
When you try to install a file downloaded from a browser, the system may issue a warning about a potential threat, which does not always mean that the file is viral, often so react "cracked" versions of programs or software that has not passed Google certification, but ignore these warnings is dangerous.
To safely install the application:
- 📥 Download. APK-files only from official developer sites or verified repositories.
- 🛡️ At the time of installation, carefully read what rights the program requests.
- 🚫 If you have antivirus MIUI labels the file as high risk, it is better to refuse installation.
For permanent installations, you can add a file manager or browser to your trusted list, and for that, when you first try to install, select Always Allow for a specific source, but remember that this reduces the level of security your device has.
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Balance between convenience and security: Allow installation from unknown sources only while installing the desired program, and then immediately disable this option in the settings.
Solving Frequent Security Notification Issues
Users often complain about excessive security notifications, sometimes the permissions controller blocks actions that the user is consciously performing, for example, when you try to open a link in Telegram, a window may appear asking about the transition to an external browser.
To remove the constant reminders of risks for trusted applications, you can add them to exceptions: in the Security app, find the scan settings and add the desired programs to a white sheet, after which the system will stop checking them every time you run.
If notifications continue to appear even after setting up, try clearing the Security app cache. Go to Settings → Apps → All Apps, find Security and click Clear → Clear Cache. Data will not be affected, but the scan settings may reset.
⚠️ Note: Do not remove or disable the Security system application through ADB This can lead to unstable operation of the entire system, inability to install applications and failures in the network.
In some cases, resetting application settings helps, so it will return all permissions to factory values, and you will have to reconfigure accesses for important programs, which is a radical but effective method if the security system is not working properly.
Impact of permission settings on autonomy
The correct configuration of the controller directly affects the time of operation of the smartphone. Blocking background activity for applications that do not require constant connection (for example, photo editors or calculators) can save up to 15-20% of charge per day.
Xiaomi's system aggressively manages memory, and if you allow a heavy application to run in the background without restrictions, it will take up RAM and interfere with other processes, which can lead to micro-lags of the interface and heat the case.
It is recommended to perform a monthly audit of installed applications, remove those that you do not use, and for the rest of the background activities, this will not only prolong the life of the battery, but also accelerate the operation of the device as a whole, freeing up the CPU resources for current tasks.