Owners of Xiaomi, Redmi and Poco smartphones periodically face a critical problem when the system stops responding to commands, and the system notification appears endlessly on the screen. This phenomenon can paralyze the operation of the device, making it impossible to change the settings of Wi-Fi, Bluetooth or even install new applications. MIUI or hyperos.
This failure cannot be ignored, as it can lead to more serious consequences, including cyclical reboots or complete interface failure. System failure often masks deeper cache problems or corrupt configuration files. In this article, we will look at proven troubleshooting techniques, from simple reboots to the use of debugging tools.
Before you start taking drastic measures like a complete reset, you should try a series of actions that in most cases help restore the normal operation of the operating system without losing personal data. It is important to act consistently, checking the result after each step. Sometimes the problem lies in a trivial overflow of memory or a malfunctioning third-party application.
Primary diagnosis and safe regimen
The first step should always be to diagnose the current state of the system. If an error occurs immediately after the screen is turned on, it may be the fault of some application that runs with the system. To test this hypothesis, you need to run the smartphone in Safe Mode. In this state, Android only loads system services, blocking all third-party software.
To enter this mode on most Xiaomi models, you need to press the power button and then (hold on for a long time) the “Stop” option on the screen before the suggestion to go to Safe Mode appears. If the error disappears in this mode, then the program you installed conflicts. Deleting recently installed applications often solves the problem instantly.
It is also worth checking whether internal memory is full, and lack of space can hinder the system processes responsible for configuration, and cleaning up garbage and removing heavy files can free up resources needed for stable work.
⚠️ Note: If the error continues to appear at the same frequency in Safe Mode, the problem lies deeper in system files or firmware, and software conflicts have nothing to do with it.
Cleaning the cache and application data Settings
The most effective and safest way to solve the problem is to force the data from the Settings application itself to be cleaned, and over time, temporary files accumulate in the application that can become corrupted and cause cyclical errors, and to perform this procedure, you will need access to the application management menu.
Since the standard input to settings can be blocked by pop-ups, try using the Google Assistant or Google Search to navigate the Settings → Apps → All Apps. Find the Settings (cog icon) item on the list. It is important not to confuse it with System Settings or other utility utilities.
Inside the app menu, find the "Clean" or "Delete Data" button. You'll be offered two options: clear the cache and clean all the data. It's recommended that you try cleaning the cache first. If that doesn't help, use a full data cleanup. This won't delete your personal photos or contacts, but will reset all changes in system settings (Wi-Fi passwords, call settings, etc.) to factory values.
☑️ Checklist for data cleanup
Once the cleanup is done, the system can think for a few seconds, and then restart the interface, which is normal behavior, and if the error was caused by a corrupt configuration file, it should disappear.
Use debugging over USB and ADB commands
If the interface is blocked by errors and you can’t even get into the app menu, a tool will come to the rescue. ADB (Android Debug Bridge is a powerful method that requires a computer and a computer. USB-cable, but it allows you to control the system at a low level, bypassing the graphical interface.
To start, you need to activate the developer mode. If you can't do this through the menu (due to an error), try repeatedly clicking on the build number in the About Phone section through voice search or quick settings if available. Then turn on USB Debugging. Connect the phone to a PC with Platform-tools installed.
Open the command line on your computer and enter the following command to clear the settings data:
adb shell pm clear com.android.settingsThis command forcibly stops the process and deletes all of its data, similar to a manual reset, but works even when the screen does not respond to touch, and after completing the command, the phone can blink the screen or restart the launcher.
What if the ADB can’t see the phone?
Analysis of system logs and update of components
Sometimes the error is not caused by the settings app itself, but by dependent components such as Google Play Services or Xiaomi system libraries, in which case a simple cache cleaning only gives a temporary effect, and you need to check the relevance of all system components.
Go to the Google Play or GetApps app store (Mi Store) and go to the application management section, check for updates for all installed programs, especially for system ones, and pay attention to the Services and Reviews or Mi Credit app, which are often integrated into the system and can cause conflicts.
For more in-depth analysis, you can use log-viewing applications such as MatLog (requires root) or the standard error report. In the logs, you can search for lines containing FATAL EXCEPTION or NullPointerException in the com.android.settings package. This will indicate the specific module causing the crash.
| Type of failure | Probable cause | Method of decision |
|---|---|---|
| Cyclical appearance | Conflicting annex | Safe regime |
| Launch error | Cache damaged. | Cleaning the application data |
| Failure after update | Firmware error | Resetting or flashing |
| The menu is not working. | UI failure | ADB clear team |
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If you have recently installed themes or fonts from third-party sources, remove them. Customization of the interface is a common cause of instability of the system application Settings on MIUI.
Resetting and system restoration
When software methods don't work, you have to reset completely, which is the last resort to get your phone back to factory status, and the important thing is to make sure you back up all the important data before you do that, because it's going to be permanently deleted.
There are two ways. The first is through the Recovery Mode menu. Turn off your phone and press the button combination (usually Volume Up + Power) before the Mi logo appears. From the Recovery menu, select the language (if available) and the Wipe Data option.
The second way is through the Recovery and Reset menu in the settings, if you can get there. Select Reset All Settings or Erase All Data. Once the process is complete, the phone will restart as new. At the initial setting, the error will likely disappear as the file system will be cleared.
⚠️ Warning: Do not interrupt the reset process and turn off the phone until the progress bar reaches 100%. interruption of writing system partitions may lead to the inability to boot the device (bootloop).
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A full reset eliminates 99% of the software errors associated with corrupting system files, but takes time to recover data from the backup.
Prevention and update of firmware
Once a bug is successfully fixed, it is important to prevent it from reappearing. The main cause of MIUI and HyperOS failures is bugs in specific firmware versions. Keep an eye out for official updates from the manufacturer. Often, these critical bugs are fixed in security patches.
Avoid installing questionable optimizers and memory cleaners from third-party sources. The Android system on Xiaomi smartphones has built-in efficient memory management mechanisms, and third-party utilities often only harm by coming into conflict with system processes.
Check the integrity of system files regularly. If you use custom Recovery or have Root rights, be careful when modifying the system partition. /system. Any change in the system APK-Files can lead to instability.