Sudden closing of applications on Android and returning to the home screen is most often provoked by an acute lack of RAM or a critical glitch in the code of a specific software product. Such “crashes” that occur due to resource conflicts or system errors are usually isolated in nature, but their regular repetition signals deep problems in the operating system that require immediate diagnosis.
You cannot ignore constant software reboots, as this can lead to the loss of unsaved data, disruption of background processes, and even complete inoperability of the device in the long term. Operating system automatically terminates processes that consume critical resources or cause errors in the system kernel to protect the device from freezing. Below we will analyze in detail the mechanisms by which these errors occur and how to eliminate them.
Lack of RAM and system overload
The most common reason why applications close on their own is a simple lack of RAM. Unlike desktop computers, mobile devices have strict limitations on the amount of available memory. When you open a heavy game, a browser with a dozen tabs and a messenger at the same time, the system begins to forcefully terminate background processes to free up resources for the active application.
If the free space in RAM becomes critically low, Android activates the mechanism Low Memory Killer. This system daemon selects processes that consume the most memory or have low priority and kills them. Often the very applications that you are trying to run are at risk if they require more resources than are currently available.
This problem is especially acute on budget smartphones with 2-4 GB of RAM. Modern applications are becoming more and more demanding, and what worked reliably a year ago can cause constant crashes today. Background services Social networks and antiviruses also consume a significant portion of resources, exacerbating the situation.
Use the built-in “Optimization” function in the device settings or third-party ones launchers with a memory cleaning function to quickly free up resources before launching heavy games.
You can use developer mode to diagnose the current memory state. Activate it by clicking 7 times on the build number in the Settings → About phonesection, then go to the menu For developers → Memory. Here you will see a usage graph RAM in real time and a list of processes that take up the most space.
⚠️ Attention: A constant lack of memory may indicate that your device is physically outdated for modern software requirements. In this case, software optimization methods will only give a temporary effect.
Software conflicts and outdated versions
The second most common cause of crashes is software conflicts. This can happen at the level of interaction between the application itself and the operating system, or when several apps collide and try to access the same resources. Often the problem lies in the fact that the developers did not have time to adapt the software to the new version. Android.
If you recently updated the smartphone firmware, and old applications began to work unstable, most likely the compatibility of the libraries was broken. API interfacesthat the app used could be changed or deleted in the new version of the OS. In this case, the application cannot execute its code correctly and crashes.
It is also worth paying attention to third-party launchers and themes. Customizing the interface often introduces changes to system processes, which can lead to unpredictable behavior in other apps. When diagnosing problems, it is recommended to temporarily return the standard launcher and theme to eliminate this factor.
What is Dalvik/ART and how does it affect the work?
The ART virtual machine (Android Runtime) is responsible for executing application code. If the ART cache is damaged or the library versions do not match, applications will crash immediately upon launch, since the system will not be able to compile or execute their code correctly.
The solution in most cases is to update the problematic software to the latest version. Developers quickly release patches that eliminate incompatibility with new versions Android. If the update does not help, it is possible that the application is simply no longer supported by the developer for your OS version.
Cache and application data corruption
Each installed application stores temporary files on the device, called a cache. They are needed to speed up content loading and reduce processor load. However, over time, the cache structure can become corrupted due to write failures, abnormal shutdowns, or file system errors.
When an application tries to read a corrupted file from the cache, it receives incorrect data, which leads to a runtime error and subsequent crash. This is one of the simplest problems that you can solve yourself without losing your personal data. Clearing the cache forces the application to re-download the necessary temporary files.
To perform this procedure, go to the Settings → Applicationssection. Find the problematic app in the list and open its card. Select item Storage or Memory, then press the button Clear cache. Do not confuse this button with the “Clear data” option, which will delete all your settings and logins.
☑️ Algorithm for clearing the cache
If clearing the cache did not help, the main application configuration files may already be damaged. In this case, a more radical step will be required - a complete reset of the app data. This will return it to the “as after installation” state, deleting all accounts, saves and settings inside it.
| Type of cleaning | What is being deleted | Impact on the account | When to apply |
|---|---|---|---|
| Cleaning cache | Temporary files, thumbnails | No effect | At the first sign of lags and crashes |
| Clearing data | Settings, logins, databases | Re-login required | If clearing the cache did not help |
| Reinstallation | All application files | Re-installation required | In case of critical system errors |
| Reset phone settings | All information on the device | Full device reset | As a last resort, if system failures |
Lack of internal memory and storage problems
Many users do not realize that lack of space in internal storage directly affects the stability of applications. The operating system Android requires free space to create swap files and temporary clipboards. If the memory is full, the system simply cannot allocate resources for apps to run.
When free space is less than 5-10% of the total volume, file system performance drops sharply. Applications begin to slow down and then crash because they cannot write the necessary logs or cache. This is especially true for devices with a memory capacity of 16 or 32 GB.
In addition, physical degradation of flash memory (eMMC or UFS) can lead to the appearance of “bad” sectors. If an application tries to write data to a damaged memory area, the operation fails and the process is forced to terminate. Symptoms of memory wear often appear in the form of sudden freezes and reboots of the entire device.
⚠️ Attention: Regularly check the free space in your storage. Maintaining at least 2-3 GB of free space is a critical condition for the stable operation of modern versions of Android.
To free up space, it is recommended to use built-in cleaning tools or connect your smartphone to your computer and transfer media files to an external drive. It is also worth checking the trash in the gallery and the “Downloads” folder, which often contain gigabytes of unnecessary garbage.
Critical memory levels (less than 90%) are one of the main reasons for system instability and application crashes, even if there is enough RAM.
Access rights conflicts and system permissions
Modern versions Android have a strict security policy regarding permissions. If an application requests access to a camera, microphone, or geolocation, but the user has denied it or the system has revoked permission due to a long period of non-use, the application may incorrectly handle this refusal.
Instead of correctly reporting an error or requesting permission again, poorly written application code can throw an exception that causes the process to crash. This often happens after updating the security system or resetting privacy settings.
You can check and manage access rights in the section Settings → Applications → Permission Manager. Make sure that the problematic application has all the necessary rights, especially if it stopped working after an OS update. Sometimes it helps to completely revoke all permissions and then re-issue them at startup.
It is also worth paying attention to working in the background. Some manufacturers aggressively limit background app activity to save battery. If the system "kills" a process right after you terminate the application, it may appear as a crash. In the battery settings for a specific application, select the “Unlimited” mode.
Malware and third-party optimizers
Paradoxically, but often the cause of application crashes is the “optimizers”, “antiviruses” and “accelerators” themselves, downloaded from unverified sources. Such apps try to control the work of other processes, interfere with the task scheduler and can mistakenly classify a legitimate application as malicious or resource-intensive.
Viruses and miners hidden in pirated software create a huge load on the processor and memory, which is why legitimate applications cannot get the necessary resources and close. In addition, malware can deliberately block the operation of banking clients or antiviruses.
If you notice that applications crash randomly and the battery drains faster than usual, conduct a full scan of the device with a reliable antivirus. Remove all dubious apps, especially those that promise to “speed up your phone 5 times” or “cool the processor.”
Why shouldn’t you use third-party cleaners?
The built-in mechanisms of Android (starting from version 6.0) effectively manage memory on their own. Third-party cleaner apps often create more problems than they solve, constantly restarting services, which only increases battery drain and CPU load.
In some cases, the culprit may be a conflict between two antivirus apps installed at the same time. They can block each other, considering the competitor’s actions suspicious. Leave only one means of protection, preferably built into the system or from a well-known vendor.
Hardware faults and overheating
Do not discount the physical problems of the device. CPU overheating is a common cause of failures. When a critical temperature is reached, the system automatically reduces the clock frequency (throttling), and in extreme cases, it begins to urgently close applications or reboot to prevent damage to components.
This often happens during long games, recording 4K video, or using the navigator in direct sunlight. If the smartphone body burns your hands, and applications crash precisely at the moment of high load, the problem is of a hardware nature.
There may also be malfunctions of the RAM module or power controller. Microcracks on the board after being dropped or exposed to moisture can lead to unstable contact. In such cases, software methods are powerless, and diagnostics are required at a service center.
⚠️ Attention: If application crashes are accompanied by strong heating of the case in the processor area, immediately stop using the device and let it cool. Operating an overheated smartphone can cause the battery to swell.
Frequently asked questions (FAQ)
Why do applications crash immediately after updating Android?
After a major system update, older versions of applications may be incompatible with new libraries. You need to go to Google Play and update all installed apps. It is also recommended to clear the partition cache Dalvik/ART via Recovery mode.
Will resetting to factory settings help if nothing helps?
Yes, a full reset (Wipe Data/Factory Reset) eliminates 99% of software causes of crashes, as it returns the system to its original state condition. However, before doing this, be sure to back up your important data, as all information will be deleted.
Can only one specific application crash while the rest work fine?
Yes, this indicates a problem within the code of the application itself or corruption of its data files. In this case, the problem is not with the system, but with the specific product. Try reinstalling it or rolling back to the previous version.
Does Internet speed affect the stability of applications?
Indirectly, yes. If an application freezes when trying to download data from the network due to a poor connection, it may throw a timeout error and close. However, this is not the reason for the system reset, but only a reaction to the lack of content.
What to do if system applications crash (Settings, Phone)?
The crash of system components is an alarming sign. Try updating your system web components (Android System WebView) through the app store. If this does not help, the firmware may be damaged and will require flashing it through the computer.