Xiaomi and Redmi smartphone owners often face the challenge of restricting access to certain features of the device, especially when children or strangers can use it. One of the most popular security queries is how to lock the camera on the lock screen to prevent unauthorized shooting or accidental activation of the app in your pocket, especially for face recognition models, where the camera is activated every time the device is lifted.
MIUI and its modern HyperOS shell provide users with a wide range of tools for customizing the interface and access control. However, there is no standard “Switch off camera on-screen” button explicitly because it contradicts the logic of quick access to emergency functions. However, there are workarounds and specific settings to achieve the desired result with a high degree of efficiency.
In this article, we will take a look at all the available methods to limit the operation of the photo module when the phone is locked, we will look at system restrictions, password settings, the use of third-party utilities, and even touch on hardware protection issues. Understanding these mechanisms will help you to protect your data and prevent accidental traffic costs or filling up memory with unnecessary pictures.
Why the camera is still available on a locked Xiaomi
Before we move on to locking methods, we need to understand the Android security architecture on which Xiaomi smartphones are based.The system is designed so that in an emergency, the user can quickly call rescue services or record an important event even if the device is locked.
In addition, many biometric protection features, such as Face ID (face unlock), require constant or periodic activity from the infrared sensor or main camera to scan. If you use face unlock, the system will keep the camera module on alert, which can be perceived by users as a "working camera."
⚠️ Attention: Complete shutdown of the camera at the system level through standard settings is impossible without loss of functionality of applications that require access to the video stream. All of the methods described below are aimed at restricting access from the lock screen or through software crutches.
Also, some system processes can activate the camera for background calibration or augmented reality if the relevant permissions have not been manually revoked, and understanding these nuances will help you choose the most appropriate method of protection.
Disabling quick access to the camera in settings
The easiest and most effective way to prevent a photo module from accidentally turning on is to remove the Quick Start label from the lock screen. In MIUI and HyperOS shells, this interface element is often turned on by default, and many users do not even suspect that it can be deactivated.
To do this, you'll need to go to the system settings menu. The navigation may vary slightly depending on the firmware version, but the logic remains the same. You need to find the partition that controls the look of the lock screen and passwords.
- 📱 Open Settings and go to Lock Screen (or Passwords and Security).
- 🔍 Find the shortcuts or quick access item.
- ❌ Turn off the switchboard responsible for launching the Camera (often the lower left or right corner).
- 🔄 Also check the power button settings: sometimes double-pressing the power button will also activate the camera.
Once you do this, swiping or long-pressing the camera icon on a locked screen will no longer trigger the app to launch, a basic level of protection that every user should have set up.
☑️ Checking the lock settings
It is important to note that removing the label is not disables the camera itself in the system.Apps that have permission to use the camera will still be able to access it after unlocking the device or through background processes if they are allowed to.
Blocking through application and permission settings
A deeper level of control is provided by the application manager at Xiaomi, where you can prevent the camera from running for specific programs or restrict their performance in the background, which is especially useful if you suspect that an application is abusing access to the video module.
To set these settings, go to Settings → Apps → All Apps. Select a suspicious or unnecessary app and find the Permissions section. Here you can completely disable access to the camera.
| Type of permit | Description of action | Impact on work |
|---|---|---|
| Camera. | Complete ban on access to the lens | The app will not be able to take photos or videos |
| Launch in the background | Banning background activity | The app won’t launch the camera without your knowledge. |
| Autonomous launch | Prohibition of self-start system | The camera is not activated when the OS is booted. |
Special attention should be paid to system services and voice assistants. For example, Google Assistant or Mi AI may have commands to activate the camera with voice, check the voice settings and turn off features related to visual search or video calls if you do not need them.
Hidden Android Services
Use of the "Guest" mode and the second space
If your goal is to give a phone to a child or acquaintance and make sure that the camera is not used, the best solution is to create an isolated environment, which in MIUI is implemented through the Second Space or Guest mode.
The second space creates a virtually separate smartphone inside your device, and you can set it up so that the camera app is not installed in this profile, or access to it is protected by an additional password other than the main one.
- 🔐 Go to Settings. → Second space.
- 🆕 Create a new profile and set a unique unlock method (e.g., a different fingerprint).
- 🚫 In the new space settings, do not install the Camera app or hide it.
- 👶 For children, use the built-in Security app → Parental controls where time of use and available features can be limited.
This is the most software-based method, and even if you unlock your phone, you'll be in a sterile environment where you can't physically take a picture.
⚠️ Note: When using Second Space, remember that files saved in one profile are not visible by default in another.
Third-party applications to block functions
If built-in tools are not enough, the Google Play store offers a variety of utilities that specialize in blocking device functions, often called “Blocker” or “Lock,” which run on top of the system and intercept attempts to launch secure components.
One popular solution is to use launchers or specialized blockers that can “freeze” certain types of devices. APK-When you lock the screen, the application can force the camera to stop.
However, using third-party software requires broad access rights, including Special App Access, without which the software cannot interfere with the system.
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When installing the blocker, be sure to give it permission to “Use on top of other applications” and “Access to use”, otherwise the lock will be removed at the first touch of the screen.
Be careful when choosing such programs. Check reviews and developers, as an application that has control over your camera and screen can theoretically be used to collect data.
Hardware solutions and physical plugs
No software code offers 100% protection against malware or hacker attacks that can activate a camera without system constraints. If it comes to maximum privacy, physical methods come to the rescue.
There's a special accessory, a webcam slider or a stub sticker, and it's a thin plastic curtain that sticks over the lens, and it's normally closed, and even if the camera turns on, it'll take off the blackness.
For Xiaomi smartphones with multiple camera modules (wide-angle, macro, TV) it is important to choose a stub that covers all lenses, or use universal sliding curtains designed for smartphones.
- 🛡️ Buy a set of silicone stubs for smartphone cameras.
- 🧼 Degrease the surface around the chambers with an alcohol napkin.
- 📏 Gently glue the plug, making sure that it does not interfere with the operation of proximity sensors.
- ✅ Check that the lens is completely closed.
It's the only solution that works regardless of the Android version, root rights or viruses, and if the camera can't see the light, it can't transmit the image, regardless of the programming commands.
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Physical stub is the only way to protect yourself from covert shooting, since software methods can always be bypassed if there are sufficient rights in the system.