Xiaomi’s modern smartphones are complex devices where privacy protection comes to the fore, often resulting in third-party defaults blocking functionality. When you install a new messenger, social network, or even an augmented reality game, Android, paired with a MIUI or HyperOS shell, automatically bans access to sensitive modules, including a lens. This is a standard security mechanism that prevents covert surveillance, but can bewilder users who expect instant software to work.
When you're faced with a black screen instead of an image when you try to take a photo or make a video call, you don't have to panic or bring your phone to the service. In the vast majority of cases, the problem is solved by software in a couple of minutes through the settings menu. You don't need superuser rights or complex manipulation of code, just navigate the permissions management interface correctly.
In this article, we will look at all possible lock scenarios, from standard privacy settings to specific features like Camera Protection, which can conflict with other applications. We will look at current versions of the shells, including the latest HyperOS, and provide step-by-step algorithms for restoring the functionality of the photo module.
Basic setting of permissions for applications
The first and most obvious step is to check the settings of a particular application that refuses to work with the camera. Xiaomi system groups access rights into categories, and often the user randomly selects the option "Disallow" on the first start of the software, forgetting about this after a while. To correct the situation, you need to go to the Settings menu → Apps → All applications and find the desired list of programs.
When you select a problem app (e.g. Telegram, Instagram or WhatsApp), click on App Permissions. Here you will see a list of all the rights requested. Find Camera and make sure the switch is set to Allow. If you ask, the app will request access every time you start the shooting feature, which can be inconvenient.
However, sometimes standard resolution is not enough, especially if it is about background work or specific features. In new versions of Android, there is also the concept of "Background Use", which should be activated for instant messengers so that the video call does not interrupt when switching to another screen.
- 📱 Open your phone’s settings and go to the Application Management section.
- 🔍 Find a program that can’t see the camera and tap it.
- ✅ Select "App permissions" and force access to the camera.
- 🔄 Restart the application to make the changes effective.
⚠️ Note: If the application still says “No access” after enabling permission in the settings menu, try to completely remove it and install it again, since the cache of the old settings could conflict with the new system security rules.
It is important to understand that some system limitations may override user settings, for example, if Do Not Disturb or a special game mode is enabled, access to the camera for background processes may be limited to save CPU resources.
Use of the MIUI and HyperOS Privacy Center
Xiaomi’s shells have a unique tool called the Privacy Center, which aggregates all access requests in one place, a more advanced level of control than the standard Android menu, and you can see not only the current permissions, but also the history of the applications’ access to the camera over the past 24 hours or 7 days.
To enter this section, use the search bar in the settings or follow the Settings path → Privacy Protection → Permissions Management. In the list that opens, select Camera. You will see three tabs: "Allowed", "Ask" and "Forbidden". If the desired application is not in the first tab, find it in others and move to the category of allowed.
Special attention should be paid to the feature "Screen and Sound Recording", which in recent updates HyperOS was combined with the logic of access to media. If the application tries to record video but does not have permission to the microphone, the camera may also not activate due to a complex check (privacy) of the system module.
The privacy center also allows you to create "empty" permissions for applications that require access to the camera to work, but which you do not trust your real data, in which case the application will receive a signal that access is available, but instead of a real image, transmit a stub.
Specifics of work in HyperOS mode
With the release of HyperOS, Xiaomi redesigned its security architecture to emphasize application transparency, and the new system introduced an indicator in the upper right corner of the screen (green dot or camera icon) that lights up when an application uses a lens, which helps to instantly identify spyware.
If you see this indicator, but you don't know which app is currently in use, pull the notification curtain down. It will display the name of the process. HyperOS also improves the virtual camera experience: if the standard camera is busy with the system process, the third-party application will receive a clear error code, not just a black screen, which makes it easier to diagnose.
HyperOS users may face a more aggressive background restrictions policy, which can automatically disable camera access for applications that have not been used for more than 3 months, even if previously authorized, as part of a strategy to optimize power consumption and protect data.
- 🛡️ Watch the green indicator in the status bar when working with the camera.
- ⚙️ Use "Security" →"Privacy for detailed audit.
- 🚫 Disable access for suspicious apps right out of the notification curtain.
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In HyperOS 1.0 and above, enable Special Access Rights to see which apps are using the camera in the background, even if you don’t see the active shoot interface.
It’s worth noting that switching to HyperOS sometimes causes some old permission settings to reset, so after a major firmware update, it’s recommended to manually recheck critical applications like bank clients or enterprise messengers.
Camera Protection and its Impact on Access
Xiaomi mid-to-high-end smartphones (Redmi Note, Xiaomi, POCO F series) have a hardware or software mechanism called Camera Protection, designed to block access to modules when the screen is locked or in certain use cases to prevent unauthorized shooting.
Sometimes this function is incorrect, blocking access to even legitimate applications, and you can check its status through the Security app (green zipper icon) → Privacy Protection → Camera Protection. If the feature is active, try turning it off temporarily for diagnostics.
There is also the concept of "isolated storage" or working with a virtual file system, which can prevent applications from saving photos, creating the illusion of a broken camera.
| Type of lockdown | Symptoms. | Method of decision |
|---|---|---|
| Lack of authorization | Message "No access" | Settings → Applications → Permissions |
| Camera protection | Black screen, closing of the application | Deactivate in the Security app |
| Employment of the resource | Error "I can't connect to the camera" | Close background applications, reboot |
| Child regimen | The camera doesn't start at all. | Getting Out of the Second Space / Child Mode |
⚠️ Note: Camera Protection can be automatically enabled when connecting to certain Wi-Fi networks or when running games, check automation scenarios in the Security app".
If you use a smartphone in a corporate environment, access can be blocked by MDM (Mobile Device Management) policies that the administrator installs remotely, in which case you can not unlock the camera yourself without the administrator rights of the device.
Solving access problems in the "Second Space" mode
Second Space creates an isolated environment on the phone, a virtually separate smartphone inside the smartphone, and apps installed in the main space do not have access to the camera in the second default space, and vice versa, unless the corresponding spacing is configured.
If you can't take a photo in Second Space, check if the profile switching level is blocked, and sometimes MIUI finds using a camera in the second profile potentially dangerous if there are applications installed from unknown sources.
To resolve the problem, go to the Second Space settings (usually through password and security settings) and check the access rights for system components. In some cases, it helps to transfer the application from the main space to the second through the special “Move applications” function.
☑️ Diagnostics of camera problem
It is worth considering that some heavy games or augmented reality applications may not work properly in the Second Space due to virtualization limitations, which can also manifest as a camera access error.
Hardware conflicts and software failures
The camera is a resource that can only use one app at a time. If you're trying to run a video call on WhatsApp, and the camera app or the video recorder is open in the background, the system will give an error. Android can't share the video stream between several active processes.
A common cause of failures is overflowing clipboard or cache of Google Play services, which are responsible for basic media functions. Clearing the cache of Google Play and Google Play Market services often solves the problem of a “hanging” camera that does not give up the resource.
In rare cases, the problem lies in the hardware plume or oxidation of contacts, especially if the phone has recently fallen or come into contact with moisture. However, before carrying the device for repair, perform a software reset of the camera settings.
adb shell pm clear com.android.cameraThis command (for advanced users with USB debugging enabled) completely cleans the data of the camera system application, returning it to a factory state without deleting personal photos. For ordinary users, the analogue is cleaning the data in the application menu.
What do you do if nothing helps?
Remember that overheating of the processor can also cause the camera to temporarily shut down. If the phone is hot, the system locks the power-hungry modules to prevent damage to components.
Frequently Asked Questions (FAQ)
Why does the camera blink or turn on and off quickly?
Can a virus block a camera on Xiaomi?
How to return access to the camera after resetting the settings?
Does the energy saving mode affect the camera?
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Timely firmware updates and access rights checks in the Privacy Center solve 95% of camera problems on Xiaomi smartphones without contacting the service.