Why Xiaomi phone is hanging on Android: a full analysis of the causes and solutions

Xiaomi smartphones are some of the most popular on the market due to their price-performance ratio. But even the flagship Redmi, POCO or Mi models sometimes start to “glut”: they hang when opening apps, slow down during games or completely stop responding to touch. If your Xiaomi phone hangs for no apparent reason, do not rush to carry it to the service, in 80% of cases, the problem can be solved yourself.

In this article, we will look at the 12 most common causes of freezes (from overloaded memory to hardware malfunctions) and give step-by-step instructions for diagnosis and elimination. We will focus on models with Snapdragon and Mediatek processors, because their behavior when they overheat or lack of resources is different, and you will learn how to distinguish a software failure from a hardware failure and when it is time to contact the service center.

1. Overloading of RAM (RAM)

The most common reason for hanging is a lack of RAM. Xiaomi smartphones based on MIUI are known for aggressive optimization of background processes, but even this does not save if you run simultaneously:

• 🎮 Genshin Impact (Call of Duty Mobile, PUBG)
• 📷 Video processing applications (CapCut, KineMaster)
• 🌐 10+ tab in Chrome or Mi Browser
• 📱 Messengers with active video chats (Telegram, WhatsApp, Discord)

How do you check RAM boot? Go to Settings → About Phone → System Status → Memory. If less than 20% is free, the system starts to brake.

Close all background applications (swipe up in the multitasking menu)

Disable auto-run of unnecessary programs in Settings → Applications → Auto-run management

Use Light mode in games (reduce the schedule)

Remove unused apps (especially heavy social media)

-->

⚠️ Attention: If after cleaning RAM The phone still hangs in 5-10 minutes, and the problem is deeper, and it could be a firmware failure or a memory module malfunction.

Processor overheating

Xiaomi phones on Snapdragon 8 Gen 1/2 and Dimensity 9000 chips are prone to thermal throttling, which artificially reduces performance when the body heats up above 45°C, the system starts to brake to avoid damage.

• 🔥 Long-term gaming sessions (more than 30 minutes)
• ☀️ Direct sunlight or heat (above) +30°C)
• 🔋 Charging. + play-off
• 🛠️ Clogged radiator or dried thermopaste (relevant to older models)

How do you check the temperature? Install the AIDA64 app or the CPU Monitor. Normal values:

Decisions:

1. Remove the cover (it worsens the heat sink).
2. Close all apps and let your phone cool for 15-20 minutes.
3. Turn off Ultraeconomic mode in Settings → Battery (it blocks cooling).
4. For games, use Game Turbo (built into MIUI).

💡

If the phone is warming even in plain, check the charger.Non-original power supplies with voltages above 5V/2A can cause the power controller to overheat.

3. Completed Storage (ROM)

Critical internal memory filling (over 90%) is the most insidious cause of lags. Android uses a portion of the ROM for cache and temporary files. When there is less than 5-10 GB of space left, it starts:

• 🐢 Slowing down the opening of applications
• 🔄 Self-involved reboots
• 📱 Freezes when shooting photos/video
• ❌ Errors of installing updates

How to clear your memory:

1. Remove the app cache: Settings → Storage → Clear the cache.
2. Move your photos/video to Google Photos or Mi Cloud.
3. Remove unused items APK-files from the Download folder.
4. Use the built-in cleaner (Safety → Cleaning).

Once a week.

Once a month

Only when it starts to brake.

Never clean.-->

⚠️ Warning: If the memory is refilled in a few days after cleaning, check the phone for viruses (see section 5) or reset to factory settings.

Firmware failures (MIUI)

The MIUI shell is known for its "glitch" features, especially after major updates.

• 🔄 Infinite boot after restart
• 📵 The sensor or buttons are not working.
• 🔳 Apps are crashed with Android.process.acore error
• 🔄 The phone spontaneously reboots.

How to diagnose:

1. Check out the MIUI version: Settings → About Phone → MIUI version.
2. Look for complaints about your model and version on the 4PDA or Xiaomi Community forums.
3. Install Update (if available): Settings → System Update.

Decisions:

• 🔄 Soft reset: Squeeze the power + Volume up for 10 seconds.
• 📱 Clearing the firmware cache: In Recovery mode, select Wipe Cache Partition.
• 🔧 Reverse to stable version: Download firmware from the official website and thread through Fastboot.

5. Viruses and malware

Even if you haven’t installed suspicious APKs, viruses can get in through:

• 📎 Investments in Telegram/WhatsApp
• 🌐 Phishing sites (e.g., “free V-bucks»)
• 📱 Fake apps on Google Play (especially “optimizers»)
• 🔌 Connecting to an infected PC through MTP

Signs of infection:

• 📈 Unexplained traffic consumption (check in Settings) → SIM-maps and mobile networks → Traffic).
• 🔋 Fast battery discharge (virus mines cryptocurrency in the background).
• 📱 Advertising over all windows (even in lockdown).
• 🔍 Appearance of unknown applications (e.g. com.android.system).

How to remove viruses:

1. Install Malwarebytes or Dr.Web Light.
2. Run a deep scan.
3. Remove any suspicious applications manually.
4. Reset network settings: Settings → SIM-maps and mobile networks → Resetting network settings.

💡

If the antivirus doesn't find the threat, but the phone still slows down, the virus can be embedded in the system files, in which case only a full reset (Hard Reset) will help.

Battery malfunctions

A worn-out battery not only discharges quickly, but it also causes freezes.

• 🔋 Battery bloating (presses on motherboard).
• 📉 Capacity drop below 60% of nominal value.
• 🔌 Unstable voltage (phone shuts down at 30-40%).
• ☠️ Short circuit in the power controller.

How to check the battery:

1. Install AccuBattery and check the battery health.
2. Look at the physical condition: if the case is swollen - immediately turn off the phone and do not use!
3. Check the charging cycle: if the phone charges to 100% in 10 minutes, the controller is burned.

Decisions:

• 🔧 Replace the battery at the service center (cost: 1,500–3,000) ₽).
• 🔋 Use the original charger (not fast charging if the battery is worn out).
• ⚡ Calibrate the battery: discharge to 0%, charge to 100% without interruptions.

7. Hardware breakdowns

If the phone hangs even after resetting, the problem may be in the hardware:

⚠️ Warning: If the phone doesn't turn on after a fall or shows "Qualcomm CrashDump Mode" - this is a sign of damage to the motherboard!

8. Annex conflicts

Sometimes freezes cause incompatible applications, especially:

• 🛡️ Antiviruses (Avast, 360 Security)
• 🎮 Emulators (BlueStacks, LDPlayer)
• 🔄 Optimizers (Clean Master, DU Speed Booster)
• 📱 Launchers (Nova Launcher, Microsoft Launcher)

How to find the culprit:

1. Launch your phone in Safe Mode (clip Power, then hold down Power Disconnect until the option appears).
2. If there are no lags in safe mode, delete applications one by one, starting with the last ones installed.
3. Check the logs of errors in Logcat (ADB required).

💡

If the phone is hanging when you open the camera, remove the photo processing applications (Snapseed, Lightroom) and clear the camera cache in Settings → Applications → Camera → Storage.

FAQ: Frequent questions about Xiaomi hangouts