Why the application does not open on Android and how to fix it

You are trying to launch your favorite application, but instead of the usual interface you see endless loading, sudden closing or an error message. The situation is familiar to many owners of Androiddevices - from budget Redmi to flagship Samsung Galaxy. The reasons may lie both in the application itself and in the operating system settings. In this article we will analyze all possible scenarioswhy the application stopped opening and give specific instructions how to fix the problem - from simple reboots to deep system diagnostics.

Important understand: if the application worked before, but suddenly stopped running after updating Android or installing new software, the solution algorithm will differ from cases where the app has not been opened since the first installation. We will look at both options, and also separately focus on problems with system applications (for example, com.android.phone or Google Play Services), which often block the operation of the device entirely.

1. Basic checks: what to do first

Before delving into technical details, follow 4 quick stepswhich solve the problem in 60% of cases:

• 🔄 Restart the device. A long press on the power button (10–15 seconds) will clear temporary RAM and cache errors.
• 📶 Check your Internet connection. Many applications (for example, banking or instant messengers) require a network to run.
• 🔋 Make sure the battery charge is above 15%. Some devices (for example Xiaomi with MIUI) block background processes when the battery is low.
• 📱 Try to launch another application. If none of them open, the problem is in the system, and not in a specific app.

If after these steps the application still does not start, proceed to diagnostics. Please note: if the error appeared after Android updates (for example, before version 14 or 15), the cause may be incompatibility of the application with the new OS. In this case, check the app page in Google Play —developers often publish warnings about support.

2. Cache and application data errors

The most common cause of failures is corrupted cache or application data. These files accumulate during app operation and may conflict with updates or system libraries. Clearing the cache is safe and does not delete your accounts or settings, and resetting the data will return the application to the same state as after installation.

How to clear the cache and data:

1. Open Settings → Applications.
2. Find the problematic application in the list (use search if the list is long).
3. Go to the section Storage.
4. Click Clear cache, then - Clear data (if the first step did not help).

For system applications (for example, Google Play Market or Google Play Services) the path may be different. On some firmware (for example, ColorOS from Oppo), you must first click on the three dots in the upper right corner and select Show system processes.

⚠️ Attention: Clearing data will delete all local application settings, including saved games, chats (if not synchronized with the cloud) and authorizations. For banking applications (for example, SberBank Online or Tinkoff), you will need to re-enter your login/password and confirm via SMS.

3. Conflicts with Android or application updates

If the application stops opening immediately after Android update or the app itself, the reason lies in version incompatibilities. Developers sometimes do not have time to adapt software to new APIs, and Google regularly tightens security requirements (for example, with the release of Android 14 the use has become mandatory targetSdkVersion 34).

How to check and fix:

• 🔍 Look at the application requirements in Google Play (section "Application information → Required Android version").
• ⬇️ Update rollback (if the problem appeared after updating the app): go to Settings → Applications → [name] → Three dots → Uninstall updates.
• 📥 Install the APK of the old version from a reliable source (for example, APKMirror), if a rollback through the settings is not available.

Android version	Potential problems	Solution
Android 13+	Access restrictions to files (Scoped Storage)	Give permissions manually or update the application
Android 12	Changes in the operation of notifications and background processes	Check notification settings for the application
Android 11	One-time permissions (Runtime Permissions)	Re-allow access to contacts/storage
Android 10	Restrictions on access to geolocation in the background	Enable "Always" for geodata in the application settings

For system applications (for example, com.android.systemui), rollback of updates can be blocked. In this case, only resetting settings to factory settings or manually uninstalling updates via ADB:

adb shell pm uninstall -k --user 0 package name

4. Lack of memory or conflicts with other apps

Android requires free space for correct applications running - minimum 1–1.5 GB on the system partition. If there is less memory, the system begins to forcefully close processes, which leads to failures. conflict with other appsmay also be the cause, especially with:

• 🛡️ Antiviruses (Kaspersky, Dr.Web, Avast)
• 🔒 Permission managers (AppOps, Battery Saver)
• 🎮 Game optimizers (Game Turbo on Xiaomi)

How to free up space and resolve conflicts:

1. Delete unnecessary files via Settings → Storage → Free up space.
2. Transfer photos/videos to Google Photos or SD card.
3. Disable or remove conflicting apps (for example, a second antivirus).
4. Check the list of running processes in Settings → Developer →Running services (if developer mode is enabled).

⚠️ Attention: On some firmware (for example, MIUI 14+), the system aggressively cleans up background processes to save battery. To exclude an application from optimization, go to Settings → Battery → Battery optimization and select All applications → [name] → No restrictions.

5. Problems with permissions and security

C Android 6.0 applications require explicit. permission access to contacts, storage, camera, etc. If permissions have been revoked or reset (for example, after an OS update), the application may not launch or close immediately after opening. Also, the reason may be:

• 🔐 Blocking Google Play Protect (if the application is marked as dangerous).
• 📋 Corporate policy restrictions (on work phones with Android Enterprise).
• 🛑 Prohibition of installation from unknown sources (for APK files).

How to check and fix:

1. Go to Settings → Applications → [name] → Permissions and enable all the necessary ones.
2. Open Google Play Store → Profile → Play Protect and check if the application is blocked.
3. For APK files: enable installation from unknown sources in Settings → Security.

If you use a corporate phone s MDM solutions (for example, VMware Workspace ONE or Microsoft Intune), some applications may be blocked by the administrator. In this case, contact your company's IT department.

What what to do if Play Protect blocks a legitimate application?

If Google Play Protect erroneously marked an application as malicious, submit a false positive report through the menu Play Protect → Settings → Send an incorrect detection reportYou can also temporarily disable protection in the settings, but this is not recommended for security.

6. Damage to system files or firmware

If none of the previous methods helped, the problem may lie in damaged system files or incorrect firmware. devices:

• 📱 With custom firmware (LineageOS, Pixel Experience).
• 🔧 After unsuccessful rooting or modifications through Magisk.
• 🔄 After interrupted OTA update.

Diagnostics and solutions:

1. Check system integrity via ADB:

   adb shell df -h

   If the output contains sections with 0% free space (for example /system), this indicates damage.

2. Reflash the device via official tools:
   • For Samsung: Odin + proprietary firmware.
   • For Xiaomi: Mi Flash Tool.
   • For Pixel: Android Flash Tool.

Reset the settings to factory settings (last option). This will delete all data, but will return the system to working condition.

⚠️ Attention: Flashing the device will void the warranty (if it is still valid) and can lead to brick (complete inoperability) if there are errors in the process. If you are not sure of your actions, contact the service center.

7. Specific cases: system applications and games

Some applications require a separate approach:

• 🎮 Games (for example, Genshin Impact or PUBG Mobile): often do not start due to:
• Lack of support OpenGL ES 3.2+ or Vulkan.
• Anti-cheat blocking (for example, Tencent Anti-Cheat).
• Lack of RAM (minimum requirements: 3-4 GB for modern games).
• 🏦 Banking applications (SberBank, VTB, Alfa Click): may not work on:
• Devices with root access.
• Firmware without certification Google (checked through Settings → Google → Certification).
• Emulators (BlueStacks, Genymotion).
• 📱 System applications (com.android.phone, com.google.android.gms): their failures are often associated with:
• Damage to files /system/priv-app.
• Conflicts with GMS (Google Mobile Services).
• Errors when updating via Google Play.

For games, check the compatibility of your device on the developer's website. For example, Genshin Impact publishes official list of supported devices. For banking applications, it may help:

• Removal Magisk (if you have root).
• Using the module MagiskHide Props Config to mask root access.
• Installation Google Play Services latest version.

8. When to contact the service center

If you have tried all the methods, but the application still does not open, and the device:

• 🔴 Gives errors when loading (Bootloop).
• 📵 Does not respond to the sensor or buttons.
• 🔋 Discharges in a few minutes.

these are signs hardware failurePossible causes:

Symptom	Possible cause	Solution
Applications close when heated	Degradation of the battery or thermal paste	Replacing the battery/thermal paste
Artifacts on the screen when starting games	GPU or display malfunction	Motherboard diagnostics
Memory reading errors (E:failed to mount /data)	Flash memory damage (EMMC/UFS)	Chip replacement memory

The cost of repair depends on the device model and type of fault. For example, replacing a battery with Samsung Galaxy S23 will cost 3–5 thousand rubles, and restoring data from damaged memory can cost 10–20 thousand rubles.

💡

If the device is under warranty, do not attempt to repair it yourself - this will void the warranty. Contact the brand's authorized service center.

FAQ: Frequently asked questions

The application crashes immediately after launch. What is the reason?

The most likely reasons:

1. Damaged cache — clear it through the app settings.
2. Incompatibility with version Android —check the requirements in Google Play.
3. Conflict with other apps (antiviruses, optimizers).
4. Lack of RAM - close background processes through the task manager.

If the problem persists, try reinstall the application.

Is it possible to restore application data after a reset?

It depends on the type of data:

• 🔄 Synchronized data (for example, chats in WhatsApp or Telegramif backup is enabled) will be restored after re-authorization.
• 💾 Local files (game saves, application settings) - lost forever if there was no manual backup.
• ☁️ Cloud data (for example, progress in Google Play Games) - will be restored by linking to the same account Google.

For future cases, use the built-in backup tools (Settings → System → Backup).

Why system applications (for example, Settings or Phone) do not open?

This is a critical error indicating:

• Corrupted firmware (for example, after an unsuccessful update).
• Conflict with Magisk/Xposed (if system modifications are installed).
• Partition overflow /system.

Solutions:

1. Reflash the device via Fastboot or Odin.
2. Remove recent modules Magisk (if any root).
3. Reset the settings to factory settings (Wipe Data v Recovery).

If after these steps the problem remains, contact the service - the motherboard may be damaged.

How can I find out which application is conflicting with mine?

Use safe mode (Safe Mode):

1. Hold the power button until the menu appears Shutdown.
2. Press and hold Shutdown → confirm switching to safe mode.
3. Try to run the problematic application.

If it works in safe mode, the conflict is caused by:

• Third-party applications (antiviruses, launchers, optimizers).
• Services with elevated rights (for example, Greenify or Tasker).

Remove suspicious apps one by one until you find the culprit.

Is it possible to run an application without Google Play Services?

Yes, but with restrictions:

• ✅ Most games and software (for example, VLC, Telegram) work without GMS, but may lose functions like:
• Push notifications via Firebase.
• Authorizations through Google Sign-In.
• Geolocations (if the application uses Google Maps API).
• ❌ Applications that depend on GMS (for example, Google Pay, YouTube, Gmail) will not start or will generate errors.

Alternative for devices without GMS (for example, Huawei without Google services):

• Use MicroG (lightweight replacement GMS).
• Install applications via Aurora Store (store without dependence on Google).