Xiaomi and Redmi are deservedly popular for their excellent value for money ratio, but even they are not immune to software failures. One of the most annoying problems users face is the sudden message "There's been an error" when the camera app starts. The screen can flash, the app will fly out instantly or just hang on a black background, making it impossible to shoot a big moment. This happens on both old models with MIUI and new devices with HyperOS.
The reasons for this behavior can be very different: from trivial overflow of cache to deeper conflicts of system libraries or hardware malfunctions of the module. Often the problem lies in incorrect firmware updates or conflict of access rights. It is important not to panic, because in 90% of cases the problem can be solved by software methods without going to the service center. Below we will consider a step-by-step algorithm for diagnosing and troubleshooting.
Before we start radical measures like a complete data reset, we need to eliminate simple software conflicts, we'll look at methods from securely cleaning temporary files to more complex manipulation of system permissions, and following the instructions will help restore the main photography module to work.
⚠️ Warning: Before performing any actions related to data cleanup or resetting, be sure to back up important photos and contacts in cloud storage or on your computer.
Primary diagnosis and rapid reboot
The first and easiest step that is often ignored by experienced users is to completely reboot the device. The Android operating system accumulates temporary files and processes that can hang up the camera module. The usual switching off and turning on the screen will not help here - it requires a full restart cycle, which allows you to clear RAM and re-initialize all hardware drivers.
If Xiaomi still has an error after the reboot, try running the camera in Safe Mode, which will determine if the third-party app is to blame. To do this, press the turn off button, and when the turn off icon appears on the screen, hold your finger on it for a few seconds until the suggestion to go to Safe Mode appears. If this mode is running normally, then the conflicting application is found.
Often the cause of failures are applications-filters, scanners QR-Removing newly installed software can solve the problem instantly, and it is also worth checking whether the smartphone body overheats, since at critical temperatures the system blocks energy-intensive modules.
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If the camera is running in safe mode, remember which apps you’ve installed in recent days and remove them in turn for verification.
Cleaning the cache and data of the Camera application
The most effective method of eliminating software glitches is to clean up the accumulated application data. Over time, corrupt configuration files can be stored in the cache folders that prevent the module from running correctly. To perform this operation, go to the Settings menu → Applications → All applications. In the list, find the item "Camera".
Inside the app menu, you'll need to select the option "Clean" or "Storage" and there are two options available: "Clear cache" and "Clear all data." It's recommended to start by clearing the cache, as it's safe and doesn't affect your personal settings. However, if the error is systemic, you'll need to reset the application data.
Once the data is reset, the app will return to factory settings, which means that the grid settings, watermarks and voice control will reset, but your photos and videos will not be deleted, as they are stored in a separate gallery folder. After the procedure, try to start the camera again.
- 📸 Go to your phone’s settings and find the application management section.
- 🗑️ Select Camera and press the cache clean button to delete temporary files.
- 🔄 If it doesn’t help, perform a complete cleaning of the application data (the settings will reset).
- 📸 Reboot your smartphone and check the operation of the shooting module.
☑️ Checklist for data cleanup
Verification of system permissions and access rights
Modern versions of the MIUI and HyperOS shell have strict security policies. Sometimes, after a system update or a permission manager malfunction, the camera application may lose the right to use the microphone, geolocation, or even the shooting module itself, this often happens if the user has previously accidentally banned access or installed a third-party antivirus with a lock function.
To check access rights, open the Camera app settings and select Application Permissions. Make sure the camera is set to "Allowed" or "Always Allowed" status. Pay particular attention to microphone access permissions (for video recording) and geo-positioning (for geo-tags in the photo). Lack of access to storage can also cause a save error, which the system interprets as a general failure.
Also, check your power saving settings. Aggressive charge saving algorithms can kill the camera process before it starts. In Battery and Performance, find the camera and set up No Limits mode, which allows the application to use the necessary CPU resources without being forced to stop by background services.
⚠️ Warning: Do not disable system permissions for mission-critical Google services or system frameworks, this can lead to unstable operation of the entire smartphone.
Why does the camera ask for access to contacts?
Update of Google Services System and Components
Often, the “Error Happened” error on Xiaomi is due to malfunctioning Google services or an outdated version of system components. The camera often relies on Google Play Services libraries for image processing, object recognition and cloud sync. Make sure that all apps are updated to the latest version in the Play Market store.
It’s also worth checking for updates to the operating system itself. Xiaomi developers regularly release security patches and bug fixes for their devices. Go to Settings → About the phone and click on the MIUI/HyperOS version. If an update is available, download and install it by pre-connecting to Wi-Fi and charging the battery.
In some cases, reinstalling Google component updates helps, so in the application settings, search for Google Play Services, click Remove Updates (the button at the top corner), and then start the Play Market again and let the system update again, which allows you to replace damaged system library files with fresh ones.
| Component | Where to find out. | Action. | Risk |
|---|---|---|---|
| MIUI System | Settings → About the phone | Check for updates | Low. |
| Google Play | Play Market → Profile | Update everything. | Low. |
| Google services | Settings → Applications | Remove updates | Medium. |
| Camera drivers | System update | Auto-update | Low. |
Resetting settings to factory parameters
If none of the above methods worked, there are probably deep software errors that cannot be fixed point by point, in which case the most effective solution is to completely reset the device to the factory settings (Hard Reset), which will completely delete all your personal data, photos, contacts and installed applications, returning the phone to the state of “out of the box”.
Before starting the procedure, make sure to back up. Use the built-in Mi Migration app or Xiaomi Cloud service. After creating a copy, go to Settings → About Phone → Reset. Select "Erase All Data." The phone will restart and start the cleanup process, which can take anywhere from 5 to 15 minutes.
Once you've finished resetting, don't rush to restore all applications from the backup. First, check the camera on a clean system. If it's working properly, it means the problem was a software conflict or system file corruption. Restore the data gradually so that if you make a mistake again, you can identify the culprit.
- 💾 Create a full backup of all important data on your PC or in the cloud.
- 🔋 Charge your smartphone to at least 60% before starting a reset.
- ⚙️ Reset via the settings menu or button combination (if the phone doesn’t turn on).
- 🚫 Do not interrupt the reset process or turn off the phone until the system is fully loaded.
⚠️ Warning: Make sure you remember the password from your Mi Account and Google account. Upon reset, the phone will request them to confirm ownership (protection) FRP).
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A full reset is a last resort, but it eliminates 99% of software errors caused by setting conflicts or malware.
Hardware malfunctions and diagnostics of the module
When software methods are exhausted and the error "Error occurred" on Xiaomi persists, there is a high probability of a physical malfunction: this can be a waste plume of the camera module, oxidation of contacts after moisture is ingested, or failure of the matrix itself. A smartphone fall from even a small height often leads to microcracks in the board or detachment of the connector.
You can use an engineering menu to diagnose yourself. Type ##6484## in the Phone app. The CIT test menu will open. Find Camera and run the test. If a black screen appears during the test, artifacts or the phone freezes, it's a hardware problem.
Also, look at the external signs: is the image shaking, is there any extraneous noise when focusing, is the area around the lens warming up, if the module is physically damaged, the software methods are powerless, in which case you need to replace the plume or the entire camera module in an authorized service center.