Problem with starting the camera inside a popular messenger is one of the most frequent complaints from users Android. A situation where, when you click on the camera icon, a black screen appears, an error message appears, or the application simply closes, it can happen suddenly. This happens both on budget devices and on flagships of recent years.
Most often, the root of evil lies not in a hardware failure of the photography module, but in a software failure when the messenger interacts with the operating system. Permission conflict, a full cache or an outdated software version can paralyze the operation of the video calling function. In this article, we will analyze in detail the algorithm of actions to restore the camera's functionality.
There are several levels of diagnostics: from simple access checks in the settings to complex manipulations with system files. You don't have to be a subject matter expert to follow these steps. Follow the instructions consistently to avoid losing data or accidentally resetting important phone settings. ITto complete these steps. Follow the instructions consistently to avoid losing data or accidentally resetting important phone settings.
Checking basic access permissions
The first and most obvious step is to verify the application's access rights to the smartphone's hardware modules. In modern versions Android the security system strictly controls which apps can use the camera and microphone. If you accidentally denied access on first launch or after a system update, WhatsApp will not be able to activate the image capture device.
To check, go to the settings of your gadget. Find the section responsible for managing installed apps. Depending on the device model (Samsung, Xiaomi, Poco), this item may be called “Applications”, “Application Manager” or “All Applications”. Find the icon WhatsApp in the list and tap on it.
In the menu that opens, select “Permissions” (or “Rights”). Make sure the switch next to “Camera” is active. It's also worth checking microphone access, since video calls require both modules to be running at the same time. If the slider is turned off, turn it on and try to launch the camera again.
☑️ Check permissions
⚠️ Attention: If after enabling the resolution the camera still does not work, try rebooting the device. Sometimes the system requires a restart of security services to apply new access rights.
Clearing the cache and application data
The accumulation of temporary files can lead to serious malfunctions in the operation of any software. The cache is designed to speed up the loading of frequently used items, but if these files become corrupted, the application begins to behave incorrectly. Clearing the cache is a safe procedure and does not delete your conversations or media files.
To clear the cache, return to the application information menu as described in the previous section. Find "Storage" or "Memory". Here you will see two buttons: “Clear cache” and “Reset data” (or “Clear data”). Press only the first button. This will delete temporary files that could cause software conflict.
If clearing the cache did not help, you can try a more radical method - resetting the data. However, be extremely careful: this operation will delete application settings inside the phone (but not your chats if backup is enabled Google Drive). You will have to re-link your phone number and restore notification settings.
What is the difference between cache and data?
Cache is temporary files (pictures, thumbnails) that can be deleted without consequences. The data is application settings, logins and the local database. Deleting data resets the application to the “as after installation” state.
After cleaning, try launching the application and checking the camera’s operation. In most cases, deleting damaged temporary files solves the problem of a black screen or crash when shooting.
Updating the system and messenger version
Incompatibility of software versions is a common cause of technical problems. Developers WhatsApp regularly release updates that fix bugs and improve compatibility with new versions. Android. If you have an old version of the application installed, it may not work correctly with the updated phone system.
Go to the application store Google Play Market. Enter the name of the messenger in the search. If there is an Update button next to the Open button, be sure to click it. It is also worth checking for updates for the operating system itself in the “About phone” → “Software update” section.
Sometimes the problem lies in the components Android System WebView. This system component is responsible for displaying web content within applications. If it does not work correctly, it may affect camera functions that use software interfaces. Update this component through the Play Market, if it is available for your device.
Enable auto-update of applications in the Google Play settings so that in the future such problems will be resolved automatically without your participation.
Conflicts with other applications
The smartphone camera is a resource that can only be used by one application at a given time. If another app is running in the background and has captured the capture module, WhatsApp will not be able to access it. This often happens when using third-party cameras, QR code scanners, or video calling apps.
Check the list of running applications. Close all apps that could theoretically use the camera. Pay special attention to flashlights that sometimes use a flash, blocking access to the main module. Try closing all background processes through the multitasking menu.
In rare cases, the conflict is caused by malware. Viruses or spyware can secretly use the camera, blocking legitimate access. Conduct a full scan of the device using an antivirus, for example Google Play Protect or a third-party solution from a reliable vendor.
Manufacturer-specific settings
Various smartphone manufacturers implement their own shells on top Androidthat have unique privacy management features. For example, phones (MIUI) or (EMUI) have additional access switches that are not duplicated in the standard permissions menu. Device owners should check the “Permission Manager”. There may be a separate ban on using the camera for specific applications, even if access is open in the main settings. Also check the “Privacy Protection” feature, which can replace empty data instead of a real image for suspicious applications. Xiaomi (MIUI) or Huawei (EMUI) There are additional access switches that are not duplicated in the standard permissions menu.
For device owners Xiaomi you should check the "Permission Manager". There may be a separate ban on using the camera for specific applications, even if access is open in the main settings. Also check out the Privacy Guard feature, which can substitute empty data instead of a real image for suspicious apps.
On devices Samsung you should pay attention to the “Secure Folder” mode. If WhatsApp is installed inside a secure folder, it may have limited rights compared to the main system. Try moving the application to the main profile or check the isolation settings.
| Brand | Special setting | Where to look |
|---|---|---|
| Xiaomi / Redmi | Permission manager | Security → Permissions |
| Samsung | Secure folder | Settings → Biometrics |
| Huawei / Honor | Phone Manager | Phone Manager → Permissions |
| OnePlus / Oppo | Autostart permissions | Phone Manager → Permissions |
⚠️ Attention: The MIUI, OneUI and EMUI shell interfaces are constantly changing. If you do not find the indicated items, use the search in the phone settings by entering the word “Permissions.”
Hardware diagnostics and reset
If all software methods have been exhausted, it is necessary to exclude physical damage. Try launching the standard Camera application that comes pre-installed on the system. If it also displays an error, a black screen or freezes, the problem is almost certainly a hardware one.
This could be a camera cable coming out, damage to the matrix after a fall, or moisture ingress. In this case, adjusting the software parameters will not help. You will need to contact a service center to diagnose and replace the module.
As a last resort, before visiting the service center, you can completely reset your phone to factory settings. This will delete all data, so be sure to back up your contacts and photos. A reset will return the software part to an ideal state, eliminating any hidden system errors.
If the standard phone camera also does not work, the problem is hardware - the WhatsApp software settings are powerless here.
Why does the camera work in normal mode, but not in WhatsApp?
This indicates a software conflict within the messenger. Most likely, the application cache is corrupted, the permissions are broken, or the version of WhatsApp is outdated and incompatible with the current version of Android.
Can I use a third-party camera for video calls in WhatsApp?
No, WhatsApp uses the Android system camera API. You can't choose a different camera app to make calls inside the messenger, unlike some other features.
Does the case affect the camera in WhatsApp?
Yes, a case that is too thick or incorrectly applied can block the lens or proximity sensors, resulting in a black screen or inability to focus.
What to do if the camera stops working after updating Android?
Try clearing the cache of the Camera application and WhatsApp itself. If this does not help, check for firmware updates from the manufacturer, since the first versions of new Androids often contain bugs.
Resetting the settings will delete my WhatsApp conversations?
Resetting the phone settings will delete the application and all local data. To save conversations, before resetting, be sure to create a backup copy in WhatsApp settings → Chats → Chat backup.