Xiaomi’s modern MIUI or HyperOS smartphones are famous for their advanced security system, which strictly controls which apps the device’s sensors can use. When you install WhatsApp, it does not automatically access your hardware without the owner’s knowledge, which is a good practice to protect personal data. However, sometimes users are faced with a situation where when they try to send a photo or make a video call, the application gives an error or just a black screen instead of an image.
The most common problem is that system permissions were accidentally blocked or not provided during the first installation. The camera is one of the most sensitive modules of the smartphone, and Xiaomi shell can block access to it if it considers the behavior of the application suspicious or if the user previously denied access to the privacy menu. Understanding where these settings are hiding will help you quickly restore the functionality of video communication.
In this article, we will discuss in detail all possible ways to solve the problem, from standard application settings to hidden protection menus in MIUI. You will learn how to check permissions, reset service errors and what to do if the camera works in other programs but refuses to start specifically on WhatsApp. Follow the instructions to return the ability to share moments with loved ones.
Checking basic permissions in the application menu
The first and most obvious step to take is to check if WhatsApp has the basic right to use the photo module. MIUI This process looks a little different than on pure Android, and requires careful navigation on menu items. If there is a ban, no other manipulation will help to start a video call.
To start, go to the main settings menu of your smartphone and find the Apps section. Within this section, select All Apps to see the full list of installed software. Search in the WhatsApp alphabetical list and click on it to open the management page for that particular application.
On the page that opens, look for App Permissions (or just Permissions). In the list that opens, you'll see access categories like contacts, microphone, and memory. Find the Camera bar and make sure the switch opposite it is activated (blue or green). If the slider is turned off, the system blocks any request from the messenger to launch the lens.
- 📱 Open the Settings. → Annexes → All applications.
- 🔍 Find in the WhatsApp list and tap on it.
- ⚙️ Select the Application Permissions menu.
- ✅ Activate the switch opposite the camera point.
⚠️ Warning: If the camera still doesn't work after switching on, try turning off the resolution first, restarting the phone, and then turning it on again.This helps reset the suspended status of service in the background.
Configure privacy and protection in MIUI
Xiaomi’s shells have an additional layer of protection called “Privacy Protection,” which can override standard settings if it thinks an app doesn’t need to use the camera as often, or if it’s in a hidden mode, which often happens after a system update, when new security rules apply to all programs automatically.
To check these settings, go back to the main Settings menu and scroll down to Privacy Protection. Here you are interested in Special Permissions or Permissions Management. In some versions of MIUI, there is a separate Camera point where you can see a list of all the programs that have ever requested access to the lens. Make sure WhatsApp is on the list of allowed and not marked as "Forbidden".
Also worth noting is the Microphone and Camera feature, which can display a green indicator in the corner of the screen when these modules are running. If the privacy settings include Hide Notification Content or Turn off the camera for background applications, this can interfere with the correct operation of video calls when the phone screen is turned off or folded.
It is important to understand that Xiaomi’s security system can automatically limit the background of the camera to save battery power. If you use video calls often, it is recommended to add WhatsApp to the exception list or configure work in the background without restrictions so that the system does not “strangle” the video streaming process.
Access management through permission manager
Newer versions of HyperOS firmware and recent MIUI 14 updates have a handy Permission Manager that allows you to manage access rights for all applications in one place, a more advanced tool than customizing each application, as it gives you a general picture of who used your camera and when.
Go to the settings and search at the top for "Permissions" or "Dispatch." Select Permit Manager (or Special Permits). Here you will see categories such as "Outstart", "Master on top of other applications" and, of course, "Camera." Click on the Camera, you will get a list of all installed programs with three status options: "Allowed", "Request" and "Prohibited".
Find WhatsApp on this list. If you have a "Request" status, the app will ask you for permission every time you start the camera, which can lead to delays or errors if you accidentally click "Cancel". This is especially true for fast shooting or scanning functions. QR-code.
☑️ Access rights verification
Using a dispatcher also allows you to identify conflicts when multiple applications request access to the camera at the same time. While Android can handle queues, on Xiaomi smartphones with their aggressive memory optimization, this can cause disruptions. By making sure that priority is given to the messenger, you stabilize its work.
Specifics of WhatsApp on different versions of Android
Permissions behavior may vary depending on the version of Android your MIUI firmware is based on. For example, Android 10, 11, 12 and newer versions (13, 14) have stricter licensing algorithms. In older versions (Android 9 and below), permissions are often given batch-by-pack at installation, while new ones require individual confirmation for each module.
If you have a Xiaomi smartphone with Android 12 and above, there is a “Disposable Resolution” feature. If you accidentally chose this option when you first start WhatsApp, then after the session (or reboot) is completed, access to the camera will be automatically revoked by the system. You will have to reconfirm access, but already selecting “Only during use of the application” or “Always Allow” if this option is available for system cameras.
| Android version | Type of request for rights | Feature of MIUI | Recommendation |
|---|---|---|---|
| Android 9 (Pie) | Installation | Minimum control | Check in the settings manually |
| Android 10-11 | First launch. | There's a permit manager. | Select "Only when used" |
| Android 12+ | Activity indicators | Green dot in the corner | Disable one-time access |
| Android 13+ | Choice of photo/camera | Expanded privacy | Give access to the entire gallery |
Owners of HyperOS devices should look at new security widgets that may appear in the notification curtain, which signal that an app is using a camera right now, and if you see one but no video call, it's a good way to check which app has accessed in the background.
Solving Access Issues After Updating
A common cause of the camera’s sudden failure in WhatsApp is either an update to the messenger itself or to the smartphone operating system. After the MIUI update, privacy settings can reset to stricter defaults, revoking previously granted rights. This is a standard procedure for strengthening protection, but it causes inconvenience to users.
If the problem appears immediately after the update, try to clear the app cache. Go to Settings → Apps → All apps → WhatsApp → Memory. Press Clear Cache (don’t confuse it with Clear All to avoid losing correspondence if there is no backup).This will delete temporary files that may have been damaged during the update and block the camera module.
⚠️ Warning: Never click the "Clear All" or "Reset" button in the app's memory menu unless you have a fresh backup of chats on Google Drive.This action will delete the entire correspondence history without the possibility of recovery.
It's also worth checking if WhatsApp is using a restriction on data in the background. Sometimes it's blocking the video stream, not the camera itself, which looks visually like a black screen. In the app menu, look for Activity Control or Charge Saving and select No Limits mode.
In rare cases, conflict can cause third-party software to improve the camera or filters. If you have apps like Open Camera or different modes for the camera, try temporarily removing them. They can intercept control of the module and not give it back to the messenger correctly.
Additional settings and expert advice
For advanced users who have tried all the standard methods, there is an option to check through developer mode, although this is rarely required. However, most often the problem is solved by checking the Security antivirus built into Xiaomi. Open the Security app (green icon with lightning), go to Permissions → Camera and double-check WhatsApp status again through this interface.
Another important aspect is access to memory. WhatsApp camera often requires access not only to the lens, but also to storage (to save photos) and microphone. If only the camera is allowed but memory is forbidden, the application may behave incorrectly. Make sure that the permissions section activates Photos and videos, Music and audio and Files.
Also worth mentioning is the Guest Mode or Second Space feature. If WhatsApp is installed in Second Space, it has completely isolated settings. You need to switch to Second Space (via settings or a special shortcut), go to its app settings and allow the camera there separately, and basically, these clone settings do not work.