The situation when a running game or messenger suddenly closes on a Xiaomi smartphone is familiar to many users of the MIUI shell or the new HyperOS. It is not just an annoying bug, but often the result of aggressive optimization of the system, which seeks to save battery power, ruthlessly "killing" background processes. Understanding the mechanics of the task manager in smartphones of this brand is the first step to stable operation of the device.
Unlike stock Android, the system from the Chinese manufacturer has deep modifications that affect the allocation of resources. The departure of the application can be caused by a lack of RAM, conflicting resolutions or outdated cache. In this material, we will analyze all possible causes and provide working algorithms for solving problems.
Before we go to complex things like flashing, we need to rule out software conflicts. Often the problem is the surface settings that the user changes accidentally or that get lost after a major system update. Let's look at the main factors that destabilize the software.
Aggressive battery optimization and background processes
The main reason why Xiaomi is dropping apps is because of its built-in power saving system, and the MIUI Optimization algorithms are proactive: if the system thinks that the program is not in use right now, it forcibly terminates the process, saving charge but destroying the user experience.
To prevent this, you need to manually adjust the behavior of each important application, the system must understand that a particular software (for example, a navigator or messenger) takes priority. Without manually configuring, even powerful flagships can behave like low-cost devices with low RAM.
- 🔋 Go to the battery settings and select No Limits mode for mission-critical programs.
- 🔒 Block the application in the menu of running tasks so that it does not clear when you click “Clean everything».
- ⚙️ Turn off auto-run for unused programs to free up resources for basic tasks.
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Use the Memory Extension feature if available in your model, which will create a virtual buffer from internal memory, which will reduce the frequency of heavy gaming departures.
Importantly, after major firmware updates, the power saving settings can reset to factory values, in which case the entire optimization procedure will have to be repeated anew, a common mistake that is often overlooked by continuing to blame the hardware of the smartphone.
Cache overflow and errors in application data
Temporary file accumulation is another classic culprit of instability: When an application cache grows to a giant size or is damaged by a system failure, the program cannot read the data correctly and crashes, especially for social networks and browsers.
Cache cleanup is a secure operation that doesn't delete your personal logins and passwords, unlike data cleanup, but if the problem persists, you may need to reset the app completely to factory status, in which case you'll have to log in again.
☑️ Diagnostics of cache
There is also the notion of a bloated cache of system services, such as Google Play Services. If departures occur randomly in different programs, it is worth checking the system components, their incorrect operation affects the entire Android as a whole.
⚠️ Note: Do not use questionable applications-"cleaners" from the Play Market. Embedded Xiaomi tools ("Security" App) work more correctly and do not disrupt the work of system processes.
Android Version Conflicts and Software Incompatibility
App developers are constantly updating their products, demanding more and more recent versions of the operating system. If your Xiaomi runs an older version of Android and the application has updated to a version that requires new APIs, there will be a compatibility conflict, in which case the departure will occur immediately at launch.
The opposite is possible: you have updated your smartphone firmware (e.g., from MIUI 12 to MIUI 14), and the installed applications have not yet been optimized for the new shell.
| Type of conflict | Symptoms. | Decision |
|---|---|---|
| Old Android | Departure when launching a new version of the application | Search for an older version of APK or upgrade |
| New MIUI | Unstable performance of previously stable programs | Waiting for an application or system patch update |
| Processor architecture | Relegation in hard games | Reduced graphical settings within the game |
You can check the updates in Settings → About Phone. If updates are available, the system will prompt them to install them. Ignoring security and system updates can lead to a build-up of compatibility errors.
Lack of RAM and overheating
The physical limitations of hardware cannot be discounted: If you have a budget model with 3 or 4 GB of RAM, running heavy games like Genshin Impact or PUBG can cause instant shutdowns. The system simply cannot allocate the required amount of resources without compromising the stability of the core.
And then critical overheating triggers a defense mechanism, and to prevent physical damage to the chips, Xiaomi is forced to shut down resource-intensive tasks, not a software bug, but a routine heat-stress response.
Keep an eye on the temperature of the case while playing. If the smartphone is hot, take a break or remove the case that interferes with heat transfer, and it is also recommended to close the background tabs of the browser and other applications before starting the game.
- 🌡️ Avoid using your smartphone under direct sunlight during loads.
- 📉 Reduce the screen refresh rate in the display settings to save resources.
- 🚫 Turn off synchronization and geolocation during games to free up CPU time.
Storage overflow also indirectly affects RAM. If the free space is less than 1 GB, the system has nowhere to create temporary paging files, which leads to crashes (collapses) of programs.
Errors in Google Play and System Services
Many apps depend on Google services, and if the Google Play Services component doesn’t work properly, it can cause a chain reaction of departures in other programs that use maps, notifications, or login through a Google account.
Often, the problem is solved by updating all components through the Play Market Store. However, sometimes deeper intervention is required. In the application settings, find Google Play Services and clean up the data. Fear not, this will not delete your accounts, but reset the service settings.
Hidden Developer Settings
Also worth checking is the date and time. Incorrect system clocks can cause security certificate errors, causing applications to consider the connection unsafe and close.
System modifications: Root and custom firmware
Users who have received Root rights or installed custom firmware experience crashes more often; modified versions of MIUI may have unstable security patches or kernel conflicts; and some banking and anti-cheat apps may not run at all.
If you use Magisk, try temporarily hiding root rights or disabling system-changing modules, which are often the ones that cause instability after updating the underlying application.
In the case of custom firmware (LineageOS, Pixel Experience, etc.), departures can be a bug of the build itself, in which case you should contact the developer forum (for example, 4PDA or XDA) or return to the official stock firmware for verification.
⚠️ Warning: Hard Reset will delete all data.Be sure to back up your contacts and photos in the cloud before you do the procedure in Xiaomi Cloud or Google.