You are trying to open an app on Xiaomi, Redmi or POCO, But instead of running, you see a black screen, an "App is not responding" error, or a "Can't open" message? MIUI — And it can have over a dozen reasons, from a trivial memory deficit to a hidden system limitation. MIUI Actively interferes with the operation of applications: blocks background activity, restricts rights and even deletes “unnecessary” files without the user’s knowledge.
In this article, we will discuss all possible reasons why the application does not open on Xiaomi, from the obvious (for example, a cache failure) to the exotic (conflict with Google services). MIUI guilty 80% And what to do if the app runs on other phones, but it refuses to run on your device. MIUI 14/15 HyperOS, where the logic of constraints has changed.
1. MIUI Kills the app in the background: how it works and what to do
The most common reason why the app doesn't open on Xiaomi is because it's aggressively optimizing power consumption, automatically closing programs in the background, even if you need them, and that's for instant messengers, banking apps, games and notification services.
V MIUI 14/15 HyperOS algorithm is even stricter: the system analyzes how often you use the application, and if it is “unpriority” – blocks its launch through the Internet. 1–2 It can be displayed on the Recent Apps list, but when pressed, it just blinks and closes.
- 🔋 Turn off auto-optimization for a specific application: Go to Settings → Annexes → Application management. Select a problem application → Battery restrictions. Set up No-limit mode.
- ⚙️ Add to AutoRun: In the same app settings, find AutoRun. Enable resolution (if the option is grey, first enable it in Settings). → Special permits → Auto-start).
Ban "Memory Cleanup"
- Open the Settings → Memory.
- Turn off the Memory Cleanup option when you lock the screen.
⚠️ Note: On some models (Xiaomi 13 Pro, Redmi Note 12) after upgrading to HyperOS, the Battery Limits item may be called Energy Saving or Background Activity Management. If you don't find an option, search by settings (the magnifier icon at the top).
2. Memory Lack or damaged cache: Cleaning without data loss
If an app starts to open but closes immediately or gives a “Stop” error, it’s the fault of a damaged cache or a lack of RAM. 9A, POCO M3), where the system is actively "killing" processes.
Before you reset your settings, try these steps:
Clear the application cache (Settings) → Annexes → Warehouse → Clear the cache)
Delete the app data (only if you are not afraid to lose your settings!)
Restart your phone in Safe Mode (hold the off button) → «Safe regime»)
Check the space available in the Memory section (should be ≥1GB)
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If the app still doesn’t open after cleaning the cache, try removing the updates (for system applications):
- Go to Settings → Applications → All applications.
- Select a problem application → three-point → Remove updates.
⚠️ Note: On Xiaomi with HyperOS, after removing updates, some system applications (such as Camera or Gallery) may stop working altogether.
| Symptoms. | Probable cause | Decision |
|---|---|---|
| The app opens and closes immediately. | Damaged cache or data | Clear the cache → reboot the phone |
| The app icon has turned grey | The system blocked the launch (virus/incompatibility) | Check in Settings → Special permits → Launching applications |
| Error "Application not installed" | Damaged. APK-file MIUI | Reinstall via GetApps or APK |
| Black screen at launch | Lack of RAM or conflict with the topic MIUI | Close background annexes → switch to standard |
3. Lockdown MIUI: Why does the system consider the application to be “dangerous»
Xiaomi is actively blocking apps that:
- 🔍 Use non-standard permissions (for example, access to the SMS or call).
- 📦 Installed from unknown sources (not from Google Play or GetApps).
- 🔄 Update bypassing the system (for example, through APK).
- 🛡️ are subject to regional restrictions (for example, VPN or banking applications for other countries).
To check if it has been blocked. MIUI appendix:
- Open Security. → Scanning.
- Check out the Threats or Dangerous Apps section.
- If the app is there, click Trust or Allow.
For apps not installed from Google Play, additionally:
- Go to Settings. → Annexes → Special permits → Installation from unknown sources.
- Allow installation for the browser or file manager through which you put APK.
How to bypass the lockdown MIUI banking applications
4. Google’s conflict: Why it’s even true for Chinese firmware
On Xiaomi phones with global firmware (MIUI Global) or HyperOS often have problems due to a conflict with Google Mobile Services (GMS). Symptoms:
- 📱 Google apps (YouTube, Maps, Gmail) won’t open or crash.
- 🔄 Apps from Play Market are installed, but not launched.
- ⚠️ The error is “Google Play Services has stopped».
Reasons:
- An outdated version GMS (chinese-style MIUI China).
- Conflict with MIUI Optimization (the system removes the cache) GMS "unnecessary»).
- Damaged files after updating MIUI.
How to fix it:
Remove updates to Google Play Services (Settings) → Annexes → Google Play Services → Remove updates)
Clear the cache and data of the Google Play Store
Restart your phone and wait for automatic updates. GMS
If it doesn’t help, set up a manual. APK s [apkmirror.com](https://www.apkmirror.com/apk/google-inc/google-play-services/)
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For owners of Chinese firmware (MIUI China):
- Install Google Installer from the official Xiaomi community.
- Or run the global firmware through Fastboot (instructions for the [en.miui.com](https://en.miui.com/)).
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After the update MIUI All Google apps have stopped working – reset Google Play Services settings via Settings → Annexes → Google Play Services → Warehouse → Reset.It often helps without completely resetting the phone.
5. Errors after the update MIUI or HyperOS: What to do
After major updates (e.g., with the MIUI 13 on MIUI 14 or switching to HyperOS) many applications stop working because of:
- 🔧 Changes in changes API (Apps are not compatible with the new version of Android).
- 📂 Data transfers (application files are corrupted during migration).
- 🔒 New restrictions (e.g., HyperOS blocks access to some system features).
Decisions:
- Reinstall problematic apps (sometimes helps even without resetting).
- Retracement to the previous version MIUI (If the update is raw: fastboot flash recovery twrp.img Fastboot Reboot Recovery Then Sweat the Old Version Through TWRP.
- Reset (extreme): Save data to your PC or cloud. Go to Settings → The phone. → Settings Reset. Select Reset all settings (does not delete files, but resets applications).
⚠️ Note: On HyperOS, resetting can delete data from internal memory if it is not stored in Mi Cloud. → Xiaomi Cloud → Sync enabled for contacts, notes and photos.
6 Viruses, root rights and modified firmware: hidden causes
If you:
- 📲 Install custom firmware (for example, LineageOS or Pixel Experience).
- 🔓 Getting root rights through Magisk.
- 🦠 The virus was caught (for example, through pirates). APK).
The problem with launching applications may be related to:
| Problem. | Signs. | Decision |
|---|---|---|
| Conflict with Magisk | Bank/Game Applications are not opened (SafetyNet Error) | Hide the Route through Magisk → Settings → Turn on MagiskHide |
| Damaged firmware. | System applications (Camera, Phone) do not work | Check your phone via Fastboot or TWRP |
| Virus in system files | Advertising in applications, spontaneous installations APK | Scan through Malwarebytes or reset your phone |
To check SafetyNet (relevant for banking applications and games):
- Install SafetyNet Test from Google Play.
- If the test fails, upgrade Magisk to the latest version.
- In the Magisk settings, turn on: MagiskHide Enforce DenyList Zygisk
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If you use custom firmware but want banking applications to work, install Universal SafetyNet Fix in Magisk, which bypasses root testing for 90% of applications.
7. Hardware problems: when the "iron" is to blame
If all apps stopped opening, or the phone is stuck on the logo MIUI After trying to run the program, the problem may be:
- 💾 Damaged internal memory (bad blocks on flash drive).
- 🔋 Faulty battery (phone turns off when loaded).
- 🔌 Oxidized contacts (for example, after moisture is ingested).
How to diagnose:
- Check the memory through ADB: adb shell df -h You see mistakes like Input/output Error – The flash drive is damaged.
- Battery test: Install AccuBattery from Google Play. if the battery is healthy <80% — battery replacement.
- Physical injury check: Light a flashlight on the motherboard (via a speaker or connector) SIM). If you see oxidation, take it to the service center.
⚠️ Note: Xiaomi with Snapdragon processors 8 Gen 1/2 (Xiaomi 12/13 series, Redmi K50) A common problem is overheating, which causes apps to fly out. CPU Monitor: if >60°C – Clean your phone of dust or replace the heat paste.