You run Instagram, Telegram or a game on Xiaomi, and after a few seconds the app suddenly shuts down? Or the smartphone itself kills the background processes, although there is enough memory? This problem is familiar to many owners of devices on MIUI — from the budget Redmi Note to the flagship Xiaomi 14. 80% of the time it is not the “glitch” of the system that is to blame, but specific settings or conflicts.
We analyzed user reports from 2023 to 2026, tests on the POCO F5, Redmi 12 and Xiaomi 13T, and official recommendations of Xiaomi Service, and obtained a checklist of 7 main causes of departures, from trivial memory shortages to hidden bugs in HyperOS (the new shell that replaced MIUI), in this article you will find not only diagnostics, but also step-by-step instructions with pictures for each situation.
Important: If the crash happens in one particular app (for example, only in TikTok or Genshin Impact), the problem is more likely to be in the same app – update it or check the reviews on Google Play.
1. MIUI/HyperOS Background Optimization Is the Biggest Application Killer
The MIUI shell (and its successor HyperOS) aggressively saves resources by closing the background processes, even models with 8-12 GB of RAM! The optimization algorithm works on the principle that if an application is not visible on the screen, it is not necessary. The result is: WhatsApp stops sending notifications, Google Maps is reset when switching to another chat, and games are dropped when the screen is locked.
How to fix it:
- 🔧 Open the Settings. → Annexes → Application management, select the problem app and enable Autostart and No Limits in the Battery section.
- 📱 In the same app settings, find the item “Disallow optimization” (or “Special permissions» → «Optimize the battery and turn it off.
- ⚡ For HyperOS: Go to Settings → Battery → Battery settings → Battery Optimization and Manually Add Apps to Exclusion List.
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On some models (POCO X5, Redmi Note 11) the Battery Optimization option is hidden. To see it, first turn on Show System Processes in the application settings.
Critical detail: once upgraded to HyperOS, the setting is reset! Check the exceptions again, even if everything previously worked.
Lack of RAM (RAM) – when 6 GB is low
Xiaomi likes to save on hardware: even in devices with 8 GB of RAM, ~5-6 GB is really available to the user (the rest is eaten by the system). If you run a heavy game (Genshin Impact, Call of Duty Mobile) or keep 10+ tabs open in Chrome, MIUI begins to forcefully close processes.
- 🎮 The game will be released on download or when changing the location.
- 📱 Apps are closed when switching between them (for example, from YouTube to Telegram).
- 🔄 B Settings → The phone. → Free memory less than 1 GB of RAM.
Decisions:
- Close the background apps through Recent → Secure (swipe up and hold the icons). This will prevent them from automatically closing.
- Enable the RAM extension (available on models with 6+GB of RAM): Settings → Additional → Expand memory and select +2 or +3GB.
- Turn off animations to reduce the load: in Settings → Special facilities → Delete animations (or via adb shell settings put global) window_animation_scale 0).
| Xiaomi model | Real Affordable RAM (GB) | Recommendations |
|---|---|---|
| Redmi Note 12 (6/128) | ~4.2 | Expand RAM by +2GB, close games manually |
| POCO F5 (8/256) | ~5.8 | Disable optimization for games, use Game Turbo |
| Xiaomi 13 Pro (12/256) | ~8.5 | Problems are rare, but check background processes |
3. HyperOS shell conflicts (new devices 2026)
With the release of HyperOS (replacement of MIUI), many users of Xiaomi 14, Redmi K70 and POCO X6 faced mass dropouts of applications.
- 🐛 Bugs in memory management mechanism (especially on versions 1.0.1.0–1.0.3.0).
- 🔄 Incompatibility with older versions of applications (e.g, VK or Sberbank).
- 📦 Automatic cleaning of cache without warning.
How to fix it:
Update the system to the latest version (check in Settings → Software Update)
Turn off “Adaptive Optimization” in Settings → Battery → Battery Settings
Reset application settings through Settings → Apps → Reset application settings
Install an alternative launcher (e.g., Nova Launcher) for the test-->
If the problem persists, try reverting to MIUI (instruction below), which is true for devices released before 2026 but that received HyperOS via OTA.
How to get rid of HyperOS to MIUI?
4. Viruses and malware - a hidden threat
Xiaomi is a popular target for viruses, especially if you install APKs from third-party sources.
- 🛑 Forced closure of applications (e.g. banking).
- 📊 Substitute advertising in games, causing crashes.
- 🔋 Overload the processor, which leads to emergency shutdown of processes.
How to check and clean the device:
- Install Malwarebytes or Dr.Web Light from Google Play and run a deep scan.
- Check the list of installed apps in Settings → Apps. Remove suspicious ones (for example, with names like System Update, Flash Player or Cyrillic characters).
- Disable installation from unknown sources: Settings → Privacy → Special permissions → Install unknown applications.
⚠️ Warning: some viruses masquerade as system applications (e.g. com.android.system) If you're not sure, don't delete anything manually.
5. Damaged application data or cache
Over time, the cache and application data can become corrupted, especially if:
- 🔄 You often switch between versions of the app (e.g. beta and stable).
- 📱 The device suddenly discharged or overheated during the application operation.
- 🗃️ The phone's memory is 90 full%+ (Check in the settings → Warehouse).
How to clean:
- Open Settings → Applications → Application Management, select the problem app and click “Clear Cache” and “Clear Data”.
- For system applications (like Google Play Services), first disable them, then clear the cache and turn them back on.
- If the crash occurs in games, delete the Android/obb/[game name] folder manually (via the file manager) and reinstall the game.
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Cleaning up the app’s data will reset all settings (like Instagram logins or game progress).
6.Store problems: flash drive or internal memory
If the applications are installed on SD-card or internal phone memory damaged, it could cause crashes:
- 📱 Applications fly out at launch with the error "Application stopped».
- 🔄 Read/write memory speed drops dramatically (checked through AndroBench).
- 🚨 In the system logs (Logcat application) errors appear E/Storage.
Decisions:
- 🔧 If the annexes SD-Transfer them to internal memory or replace the card with a class UHS-I (U3).
- 📊 Check the health of internal memory through the command: adb shell dumpsys devicestoragemonitor Look for lines with bad_blocks — if > 0, memory damaged.
- 🛠️ In extreme cases, reset through Settings. → Additionally. → Resetting settings → Erase all data.
⚠️ Note: if you are using Adoptable Storage (formatting) SD-As an internal memory, the depreciation of the card is accelerated by 2-3 times. SD Insight.
7. Hardware problems: overheating, battery, memory module
If none of the software methods worked, the reason could be the hardware:
- 🔥 Overheating: CPU trottlits (reduces frequency), leading to game crashes. AIDA64 — if CPU > 70°C, need cleaning or replacement of the heat paste.
- 🔋 Battery worn out: at the level of health < 70% (checked in AccuBattery) device can turn off processes to save energy.
- 💾 Damaged memory chip: If departures are accompanied by artifacts on the screen or reboots, this is a sign of malfunction NAND-flash.
What to do:
- 🧹 Clean the charging connector and vents (on Black Shark, POCO F-series).
- 🔄 Calibrate the battery: discharge the phone to 0%, then charge to 100% without interruptions.
- 🛠️ If you suspect a hardware malfunction, check logs through adb logcat (look for errors). E/hwcomposer or E/memory).
For liquid-cooled models (Xiaomi 12S Ultra, Black Shark 5), loading departures may indicate a leakage of heat conductive paste, in which case repairs are required at a service center.